MikroTik

wirelesswaves

Hi, Nope, not this time, its not even related to any MT products. Just thought that with such a gathering of networking gurus around, that someone might be able to point me in the direction. Its actually to interface a "HP Back-up" type drive to a "ADSL Home modem/router". The Ba...

wirelesswaves

does anyone know of a "truly" driverless adaptor to attach to USB device that does not have windows or linux and convert to Ethernet (LAN)

wirelesswaves

Can someone please reaffirm before I go mad, simple queues are fine in "simple" distribution type situations and for limit top the client,, But surely a parent is still required to cap the limit on the interface and then distribute evenly ( if required) Eg. If I had 20M input and every cus...

wirelesswaves

they are back at the default. Have you forgotten these are "established" tcp connections with a default 1day timeout. They have gone through the 4 way handshake protocol but remain "unreplied" I do not see how any alterations to the tracking values will change anything without al...

wirelesswaves

currently anything between 30 minutes and 23.40 hrs

curiously my filter is inverted.

I have to filter>

Unreplied is no........................... not yes as would be expected!

wirelesswaves

v5.25 does not have a time out setting for "unreplied" !

wirelesswaves

yes. no difference.

wirelesswaves

It happens periodically, usually after a night of heavy p2p traffic... The connection tracking table grows to around 5000 connections and 4000 of those are "unreplied". It wouldn't bother me but there does seem to be a link to customers complaints for 24 hours afterwards (until the connect...

wirelesswaves

oh crap!

Cant we use the flags "unreplied" or "!assured"

wirelesswaves

anyone?

need help here with a script to run every 5 minutes to delete from tracking table all connections that meet the following criteria.

1: tcp+(!SA)+(!local network ip's)+established

where !SA = assured

Or maybe it just cannot be done!

wirelesswaves

Did anyone ever manage to write a script to periodically remove "unreplied" connections from the firewall tracking table. In the last few months I have seen an increase in this problem, today over 2500 unreplied connections, and whilst these may seem innocent at first, they do seem to stop...

wirelesswaves

you are using single chain, (1 antenna).. You will not get what you want to achieve until you change your equipment to use 2 chains at both ends!!

wirelesswaves

forget the formulae for now. For 5500Mhz use path loss for 1km = 106dB. That is the only number you need to know. The rest is simple. The formulae is a square law, so: each time you double the distance at another 6dB of loss. To calculate your setup. Add all the components in "system gain"...

wirelesswaves

You want 80MB but you only use single chain product !

wirelesswaves

ok.. all seems ok.. I use preamble "long" at both ends. If you get the ocassional drop, then enter 2484 in the cpe scan list and make sure that 80211 is set for mode at both ends. I avoid using "any" or "nv2,nstream,80211" as it causes longer time for reconnect. I have ...

wirelesswaves

Hi,, thanks for the karma increase. Swop back to 20Mhz channel... Use Japan and 2484 (just as a temporary solution) Ditch nv2 until link is stable. Try 80211 Advanced settings. Fiddle with CPE only!! HW retries = 10 HW protection mode = rts/cts HW protection threshold = 512 ANI = ap+client All else ...

wirelesswaves

You may have a problem because the received signal is just too high. ( both ends) add 18 dB attenuation to both sides of the link. Wireless>>Advanced>AntennaGain put 18 in that field, do both ends. Then ping from tools menu and report back to forum.. Check distance Go to registration page, right cli...

wirelesswaves

thanks.. I got it right later after I posted.. And now I see that the first half checks to see if the OID exists in the first place.

So everything is working fine and has been for a few weeks,, however I did not get an answer to the 10,5 entry at the tail end.

What is the significance of 10,5 ?

S

wirelesswaves

Wow, I managed to contribute and solve my own thread in its entirety!! The answer is in the last paragraph: "When you get some time read some of the probe thread but also look closely at this probe since it is the model of a well designed probe and all your probes in my opinion should be based ...

wirelesswaves

ok.. I got it to work... I changed line: if(oid_column("1.3.6.1.4.1.14988.1.1.1.1.1.4.3", 10 ,5),oid("1.3.6.1.4.1.14988.1.1.1.1.1.4.3", 10 ,5),"False") to: if(oid_column("1.3.6.1.4.1.14988.1.1.1. 1.1.4", 10 , 5),oid("1.3.6.1.4.1.14988.1.1.1.1.1.4.3",...

wirelesswaves

Example from Lebowski: Right so you will want to find the OID for MikroTik and replace the string in the function... So the function does all the work; First the if in the function determines if the oid exists, if it does then it returns the value in the 2nd oid. Otherwise it returns false if the 1s...

wirelesswaves

Hi Can someone point me to a working RSSI probe example for v4.03. I have read " Getting started with functions and probes", "quick guide to a good probe" But to no avail, just cant get a working probe/function. Through copying and modifying other examples, I have managed to get ...

wirelesswaves

hi whats up with the probes and functions in ver4.0beta3. I have followed wiki and lots of examples and cant get a probe of rssi to work. Either it is showing signal low or not available. I went back to basics and changed the mikrotik oid for my station for the example above and I still get nothing....

wirelesswaves

thanks, yeah got it yesterday..

Seems the facility to add from the left control panel does not work, but a simple right click on the map gives the option to add with the same results.

Minor bug.

Thanks

Simon

wirelesswaves

Is it me? I wanted to add a second map, so I went to the control panel, left column and navigated to "Network Maps" I click add and give it a title. It then appears in the panel under my local map. But when I go back and double click the new entry, it just keeps saying "Loading...&quo...

wirelesswaves

Still not found the solution.. Anyone else having routing problems using Route Mark?

wirelesswaves

Can someone please confirm yes or no whether the route mark function is working properly in 5.21. I am using src address list to lookup and mark routing with separate gateway on an RB750 running 5.25 and everything is working fine. But when I try the same code on an RB1100ah and ros5.21, I just cann...

wirelesswaves

ok, I understand.. I suppose none of your clients have the standalone type phones.. Without those its difficult to do, since there is no certainty when you try and catch the chatter with the skype PC softphone app. maybe you could mark connections in range 15kB - 30kB, I also used that as a filter t...

wirelesswaves

well yes, I guess so.. Who were you asking. I found the chatter picked up between "standalone" skype products back and forth to skype servers, was 99% accurate for identifying skype based on dst-ip's added into an address list dynamically. No layer 7 required, and infact I found that layer...

wirelesswaves

jesus I didn't know that ( manually setting cost), cos i struggled with that the other night when I took a glance at it. I was trying to find a way of setting the default cost value up higher, somewhere around the 120, then at least I have got headroom above and below to steer the traffic. Nice one....

wirelesswaves

hi,

Thanks for input,, again sound advice... I took a quick look at BGP and it nearly gave me a migrane!

I have been looking at the route filters and head scratching a way to filter specific IP's and change their cost.

Think it might be the way to go, rather than learn yet another routing protocol.

wirelesswaves

mmm 3 hours of reading and its still looking too complex for me. Are there any simple examples to follow anywhere, particularly relating to either ospf filtering examples or BGP on top of ospf. see attached The ring is currently configured as 1 network back to 2 seperate interfaces on RB1100ah, Now,...

wirelesswaves

thanks for that, good timing too, the link was finally activated yesterday... So last night I was taking a look at configuring the OSPF ring to now have 2 border gateway routers. And I was considering messing around with route filters to somehow change the distance on certain groups of clients. I wi...

wirelesswaves

Can someone recommend what would be their optimum flavour of routing for the following scenario, bearing in mind that the present setup is a large network ring topology, with the main gateway rb1100h having 1 eth facing public and 2 further interfaces ether2 going anticlockwise and ether3 going cloc...

wirelesswaves

I have several omnitiks and a few sextants on 6.1 and my phone customers are not complaining.. I put 6.1 on a couple of months ago to cure some ospf irregularities in that part of the network.

I didn't "uncheck" any service settings and all my Voip ATA's, registration and quality are good!

wirelesswaves

Just for your interest. I have so far tried 4 different flavours of Linux OS.. Puppy Lucid Puppy Precise Antix Puppy Slacko There seems to be nothing wrong with the Dude compilation, however there are issues between The Linux OS and Wine when using Dude. Dude seems to work fine when used within WINE...

wirelesswaves

Roughly, the metal will be 500mA. We could argue day and night about the exact consumption, but we will have to consider an acceptable value considering it may only be transmitting periodically and even less during the night. If both batteries are wired in parallel, then the Volts remain 12V and the...

wirelesswaves

I suppose I wont be thanked by MT for raising the question, but,, in view of the apparent incompatibility between WINE and AntiX (debian wheezy type), and the same issue of "unable to ping"... Are there any other members who have researched an alternative FREE product that runs in a Linux ...

wirelesswaves

+1 almost a snapshot image of your problem.

Not working using wine on AntiX OS

Please let us know if you find the cure!

wirelesswaves

Hi Having trawled through forums and spent a week messing around with Ntop to graph the Traffic Flows from my gateway, I realised that there are some short falls with Ntops ability to Graph. I spotted a nice little tool for Graphing using the RRD's from Ntop, its called "Drraw" available h...

wirelesswaves

but you say that you supply the MT routers with battery power. 1: what is charging the battery? 2: You say you see 20khz noise, are you using scope to see that, its clear that the 20khz noise is from an smps. Sollution Feed the equipment on top of tower from a linear regulated supply, not a switcher...

wirelesswaves

I am a HAM too, I used to have all my equipment at the top of my 12M tower, just under my rotator for my 50Mhz beam. Also connected to the tower was HF wire antennas. I had NO rfi problems what so ever. I made sure that I used a linear regulated 24V supply for the MT equipment and fed the whole lot ...

wirelesswaves

mm

About the frequency as an smps.

So what is keeping up the charge across the battery? Not an smps?

wirelesswaves

New groove R52HpN "out the box" Saturday.. Plugged up to 21dB mesh, readying for install. (2.4g) -75/-76 from loooong distance AP (used for testing).. This morning checked it out before I install it later. Signal changed to -75/-87... (this appears to be a drop in output power) as reported...

wirelesswaves

for anyone interested. Dude V4 (latest version) beta works fine using Linux Puppy within the WINE environment on a 4Mb SSD with 2Mb RAM, Atom processor. Also tinkered with the Linux start directory, so that Dude automatically starts from boot-up. The FX170 can be held in the palm of your hand and us...

wirelesswaves

Ok, so nobody?

Alright, scratch the Dell.

ANY THIN CLIENT?

wirelesswaves

Anyone out there had any success using dude on a Fx170 thin client (windows 7 embeded) 4G ram only.

wirelesswaves

wds with NV2 ???????????????????????? As far as I am aware NV2 is incompatible with WDS , maybe I am out of touch. 80211 mode In advanced tab on CLIENTS ONLY HW retries 10 try rts/cts = self Hw. Protection threshold 512 aNi = ap and client Preamble long I do not know what your solution is if you hav...

wirelesswaves

Add a mangle "packet mark" to mark all packets with mark "all" Leave passthrough rule untouched Add mangle rule directly beneath to mark port 80 traffic as "web" Then make a simple queue "parent" wth the total of your upload/download as you have already before...

wirelesswaves

furuka wrote:
Ok, I solved the problem... we adjust some features in MCS and now we have 99/98 CCQ with 102/94 mb

Nothing about aling and all that stuff....

+1

Intrigued ???????

wirelesswaves

I dont think there is much help to this one, however I can give you some advice.. Fill the access list with 10 bogus entries, for example: 00:00:00:00:00:0a up to 00:00:00:00:00:10 (remember it has to be hex) Keep a note of at least 1 bogus entry in your diary. Note, that whenever you modify a MAC e...

wirelesswaves

hi samsung, I had almost given up on the forum.. I was about to experiment with a standard set up. 1 instance running on both interfaces, adding in 1 route to cover all the /30 addresses, also 1 route for all the loopbacks and routes for each 192.169.xx Ap range (clients) redistribute default (only ...

wirelesswaves

can someone help me out with the following scenario I am new to OSPF, so bare with me. My eth1 faces the internet with a public IP (several) my customers are natted to their cpe wlan, and then again natted across to various public IP's in the gateway according to their service type. Eth2 has an addr...

wirelesswaves

After a frustrating week (last week) . Had several occassions where the TX stopped transmitting.. Even a script wouldn't sort it out.. However a scheduler did work. The answer there was that when my unit reaches the condition whereby the unit stops transmitting, the unit also stops being able to run...

wirelesswaves

Many of my clients use the dualphone (no pc required "stand-alone") products... The phones have independant IP's (LAN side) . I have rules in the gateway that catch the constant chatter these phones produce.. It logs all the far end skype server IP's. It does not take long, when you have f...

wirelesswaves

has anyone else noticed that a "standard" netwatch script is not working. ie the script is not running from the netwatch facility, however if the script is run manually, the script performs disable/enable OK. It has happened to me three times now, but again I forgot to notice if the CPU wa...

wirelesswaves

Omnitik as Omni Ap

SXT's for client cpe's

wirelesswaves

have you tried establishing a link at ground level first by plugging up the 2 x 5g metal into dummy loads before taking them to site. Select a channel please and put in scan list, make sure channel is same at both ends... Do a scan and report back the "background noise level" even though t...

wirelesswaves

2 x sxt lite would be more than adequate.

bridge mode to station.

google "sxt config" there are loads of pages showing config.

wirelesswaves

Hi, it will achieve the same effect, but I wouldn't say that it was the correct way to manage things. The best method would be in the gateway router, and/or further control at the AP. That's where you will achieve the best bandwidth distribution control. I use localised control ie simple queues in t...

wirelesswaves

until they find a fix. Use netwatch to ping the adjacent service, after ping fails for say 4 secs, trigger script to disable/enable interface. Or use the other script examples above. Really I know its a headache but my script runs all the time and only changed the interface state once in the past 4 ...

wirelesswaves

select "superchannel"

wirelesswaves

2 sextants would be fine. Just configure them as bridge, there are hundreds of examples for that config.

wirelesswaves

If you are suggesting that the 2 clients have 1Mb and also the other has 2Mb, then you only need 2 simple queues

Give each client an IP address

Then give one Max limit 1Mb and give other client Max limit 2Mb,

put those rules in your gateway router.

wirelesswaves

My sextantG just froze its wlan,,, I was using ros5.24 + fw3.02

Now using netwatch to run a script to disable/enable.

Whats the advice please MT..

wirelesswaves

May have just stumbled on the problem. I have 2 rb433ah on same tower... Their ports Ether2 are interconnected with 1M of cable (externally) However, both units are supplied by POE injectors across ports Ether1. Both POE injector devices, LAN's are not used.. Over the last week the Port flap at this...

wirelesswaves

good to know,,, but I am getting more confused by the issue.. Nomis has just told me to upgrade from 5.22 to 5.24 on a sextant that had frozen interface issue,,, on all those RB800, did you upgrade FW to 3.02 as well? I am seeing some posts that are suggesting not to upgrade the FW from 2.41,,, Nomi...

wirelesswaves

hipro5 Stop being annoying, if you already have the answers, why are you posting http://www.learnemc.com/tutorials/Current_Paths/Current_Paths.html Go learn it, then you can tell those of us who have letters after our names and degrees etc, that we don't know what we are talking out! When you have y...

wirelesswaves

The bigger the difference in SNR the better... Yes you are correct to some degree.. I can only quote relating to Radio Transmitters and Receivers at the lower frequencies, my former trades were in HF communications and Band II broadcast. So I have no idea how the various stages of signal amplificati...

wirelesswaves

Seems like there are employment opportunities for us radio engineers in Greece eh n2roadie?

As an aside from my own EMC experiences, the PCB earth should go back to one earth point only to avoid circulating rf currents.

wirelesswaves

HI

Its directly connected to the antenna, and it isn't raining.

wirelesswaves

Well I have worked on dozens of commercial radio sites, it used to be my occupation..

If your site is so badly engineered in the first place and you cannot use the most rudementary piece of test equipment, then you may as well give up.

wirelesswaves

You mean you are seeing something like this.. (see attached) In the space of 1 minute the signal as seen from the client end fluctuates up and down by 13dB.

Before I installed it at the weekend ( now unable to even mac-tel or ssh into it) everything was fine with a RB433ah + XR2

wirelesswaves

why don't you just power up the gear, forget about passing data right now and try using a 100Mhz scope with current and voltage probes and look at what is on the: 1: ethernet shield 2: data pairs If you think there are currents on the outer shield and I wouldn't recommend bonding the top to the towe...

wirelesswaves

hipro5 wrote: Lakis wrote: Signal to noise is a bit high 65dB STN is too high?.... It's almost "perfect" you mean. whatever is best for u in best practice SNR should be around 30-40db - never the less this does not mean in all conditions should be correct Lakis, you are posting incorrect d...

wirelesswaves

Can anyone tell me under what circumstances an "out of the box" Sextant G should suddenly reboot itself twice with a few minutes with the message "system error critical" "router was rebooted without proper shutdown by watchdog timer" Anyone from MT tell me what process ...

wirelesswaves

I am also seeing 15dB jumps in receive signal, and I have lost all contact with it (ssh, winbox, mac-tel) etc etc.

wirelesswaves

Yesterday it was the OmniTik Upa which had lost control over the poe out function. Finally got it up to ROS5.24 and it works again, but still leds in wrong order. Today is another bad day!!!!! Installed groove Metal2SHPn seemed to work ok, however I had noticed that TX signals seemed to be reported ...

wirelesswaves

Is there a solution to this, I have just taken omnitik out of box and poe worked for a while until I plugged in groove2hp, then it cycled off/on. So checked out firmware and it ver 1. upgraded ros to v5.24 Have downloaded latest fw from web page for the poe out, stuck it into the files directory and...

wirelesswaves

Try this script,, we are using it in the "wireless" part of the forum to enable/disable a wireless interface if it stalls. Sounds like just what you need. Just modify the appropriate lines to enable or disable your OVPN interfaces. Also make sure that name of your interface is correct acco...

wirelesswaves

ok... Now I see other issues. I have set the scheduler to run the script every 20 seconds, and I get 10 log entries prefixed in blue by script warning 1 -txrx blablabla I assume this comes from line :set txrx ($txrx+$("tx-bits-per-second")+$("rx-bits-per-second")) } :#log warning...

wirelesswaves

Had to quickly apply your script this morning... The wireless interface on Sextant froze up, second time since new ( 3 months) Netwatch sent me an email just after midnight, but I forgot to redirect the email to a server to convert to SMS. Customer rang phone early AM to alert me to problem. Anyhow,...

wirelesswaves

Ok, thanks for that, never even spotted that sub-menu there.

many thanks

Simon

wirelesswaves

I cant believe I've done this and cant believe I cant see the answer. How do I stop a router that is pinging another, when the source router started pinging from a script. Seems there is no way to stop it unless the router is rebooted (don't want to do that on a router that is in service) Surely a p...

wirelesswaves

Brilliant! thanks.

wirelesswaves

sent at 11.27 my time.. Try your spam box or email me simonjpryce(at)hotmail.com

wirelesswaves

check your emails, I sent you some info.

Simon

wirelesswaves

watchdog forces reboot, who wants to loose the connectivity for 45 secs + watchdog period when the script could do it far quicker.

However, a good explanation of the script would be useful to us all and I cant wait to start using it (as soon as I fully understand ALL the parameters)

wirelesswaves

ok, I see what you want to do.. Its a bit advanced for me, so guess you have to wait until some of the more experienced read the post.

Alternatively send an email to me and I will forward some email details of guys who have always helped me out (so long as its a tiny request)

wirelesswaves

I think nobody is replying because we dont fully understand what you are trying to do. Maybe it is SRc nat that you want to use... You should be able to Nat across any address or range of adresses inside the network to another address that is outside the network. I use that a lot to Nat across a cus...

wirelesswaves

+1

Wasn't able to determine whether it was the SXT or the Sextant, radio remains registered but unable to pass any traffic.

Both units using 5.22, sextant 1 month old and sxt 6 months, but both fresh out the box.

wirelesswaves

Femur: Quite brilliant feedback thanks.. Apologies it took so long to respond, for some reason my "topic notifications" seem to be radomly sent to trash by those kind people at hotmail!! In the meantime, I did consult Butch (GOD) Evans and he suggested a look at OSPF and in the meantime I ...

wirelesswaves

Hi Tom. Thanks, didn't see the link you posted until I re-read you posts. I had a quick look at MPLS this morning, and in honesty I think its going to be beyond me.. Even if I do crack it, there is another thorn in my side: One of the segments of the ring is made up from a pair of Nanbridge M and I'...

wirelesswaves

Hi Tom, I agree with most of what you say.. The current backbone is adequate for my input. However I am sure that having extra capacity available by halving the load could do no harm. It doesnt have to be exactly 50/50, I would happily settle for 60/40.. It just seems such a waste to have a function...

wirelesswaves

Hi Tom

Thanks for the suggestion, but am I missing something, I was looking for my bread buttered on both top and bottom.

Will your suggestion also split the load ? ie say 20Mb in one direction and 20Mb in other.

Simon

wirelesswaves

Hi, Can anyone offer some simple suggestions for routing the attached scenario. At present I have a fully routed network and in the next few days I am about to close the "ring" by completing the last hop from 1 village across to another. From then on, each village (AP) will have a choice o...

wirelesswaves

ok, I am about to re-engineer this site, so I wont bother for now..

By the way, the unit that was up for 111 days and as of today (now 118) days, is a Routerboard RB133..

wirelesswaves

I was thinking of something similar. I was considering using 2 x groove metal at each end of link in nstream mode and at opposite ends of the 5g band. then I was going to put a basic router behind each, say RB450. It may be possible to use packet marks to mark each alternate new connection, I have s...

wirelesswaves

The forum is not always about problems, sometimes there should be some praise!!

Lots of folk critical about NV2 and persistent disconnects. Its a post to say, "NV2 does work"

wirelesswaves

Thought this might interest those that may still have doubts regarding NV2. I started using 10Mhz channel widths a while back in combination with 2.4ghz Gmode only. see attached, the customer has been connected for 111 days without single interruption to signal. The rest of the clients disconnects a...

wirelesswaves

Hi A bit risky letting skype use as much bandwidth as it can-- You do realise that skype will use 1.4Mb for HD video if it can! And on the other hand video works at 300kb. Do you have any "stand alone" skype phones? If you do then search for my post, its quite straightforward and has quite...

wirelesswaves

I now see that the latest versions of skype dynamically adjust the quality of the video call according to the available bandwidth. If like me you annoyingly have customers who despite seeing one another at various times of the day, go on to call one another evenings and other times using skype "...

wirelesswaves

Well I think the silence is worrying and so is the lack of help. MT, why do you "dump" these new ROS or changed things in our lap without adequate support. Even the wiki is out of date and of no use. Where have all the "old timers" gone, is no one using NAT and doing double QOS w...

wirelesswaves

Nobody using NAT??

wirelesswaves

I played with this last night and still could not get it to work, so had to roll back to V5. I suppose I have made things more complicated for myself by expanding my network and using 2 more local interfaces on my RB1100ah. Anyhow, I was using double QOS with NAT. My ether1 is public facing (multipl...

wirelesswaves

Hi Normis, you mentioned a while back (or maybe let slip) that MT were working on something to compete against the nanobridge. Well I need 10 of something right now, what news is there? I tried a pair of nanobridge and whilst the mechanics of it are quite outstanding, the only 1 in the field is alre...

wirelesswaves

EU directive in question is 1999/44/EC This is how I see it!!!!! "There is a window of two years from delivery of a consumer product during which the consumer may claim that the product was defective at the time of delivery. Although this period is often misinterpreted as a mandatory two-year w...

wirelesswaves

thanks guys,, bought caps yesterday from diyaudio.es, arrived this afternoon, fitted and rb433uah functions again.

wirelesswaves

I dont have a problem using nstreme and I am using Dbi F52N-pro on one end and at the other a Ubiquity.

Distance 16km

30Mbps UDP each direction
14Mbps TCP both directions (simultaneous)

Ping time 1ms

Signal level -66/-69

Antenna both ends equal are 30dB grid

stable.

wirelesswaves

OK.

Thanks for the reply, "that's all I asked for!"

(and thanks for the reply re the sextant,,, however I did discover a forum post that the sextant is upgradeable to licence level 4 at no charge!)

From

Grumpy!

wirelesswaves

Old it may be, but it was aimed at the readers and their experiences with replacements. Do you have any useful input to the thread, eg: Yes, we are now using the xxx and they have performed perfectly since xxxx and this is where to buy them from xxx and they cost xxx! Honestly MT I sometimes wonder ...

wirelesswaves

I was surprised to get an RB433uah back to the office after just 15 months of service to discover that the caps were bulging. On inspecting the caps I see that Su'scon SJ series were used, and I am very disappointed in the choice of, what I would determine as a "low end" capacitor.. Meagre...

wirelesswaves

Interesting problem. This week I am having the same issue after 2 years of faultless performance my AP has same problem. Its a RB433ah fitted with an XR5 as my backhaul and another card for the local AP (customers). The Ros was 5.17, then I tried 5.20, then 5.21 and now back to 5.11.. Still the prob...

wirelesswaves

Has anyone tried removing the PCB and replacing it with the 711GA-5Hnd, making the sextant then usable as a ptmp (level4) license,,

The 711GA-5Hnd has power jack and usb port, does it still fit within the sextant case with these extras!

wirelesswaves

thanks for the info, at least spares can be obtained without throwing the whole thing away.

Good news.

wirelesswaves

1:According to the blurb, the sextant has an RB711G as the base router,, can MT confirm whether this is a standard "unmodified" Routerboard, or has it been re-shaped to fit the enclosure. 2: Has anyone split the housing apart and sprayed the inside with EMC shield to improve its S/N perfor...

wirelesswaves

ok, got it sorted.

Not really mentioned anywhere that I could see, but it was a necessity to have at least 1 DNS server listed in the

IP>DNS tab

wirelesswaves

ok, no problem.. I did try 5.20 as well.

wirelesswaves

can you confirm that the site www.lagado.com and follow the link to tools/cache, does actually provide cached results with you.

Dont want to be chasing a red herring.

Also mad memory unlimited, like your setup... But still the same.

wirelesswaves

Sorry to disappoint, its still the same, NO hits.. I was doing the page test again with Lagado.com and was careful to clear browser cache before refreshing page.

Anymore suggestions, Anyone!

wirelesswaves

Yes I have cache size, for some reason cache size does not show up with "export compact" which kind of defeats the whole export compact thing! But I will try your suggestion regarding the "always from cache", but I have to say that its not shown in any example configurations that...

wirelesswaves

[admin@MikroTik] > ip pro [admin@MikroTik] /ip proxy> export compact # jan/02/1970 00:11:27 by RouterOS 6.0rc1 # software id = T2IQ-HXTA # /ip proxy set enabled=yes /ip proxy cache add dst-port=80 src-address=192.168.0.0/24 add action=deny [admin@MikroTik] /ip proxy> /ip firewall nat add action=redi...

wirelesswaves

I am pulling my hair out here.. Why cant I get proxy cache to work. I have set the usual rules inc port 8080, cache on disk (yes), enabled etc etc I have tried just about every configuration posted, and I have to say that the config doesnt appear that hard. I am using transparent, so I have a redire...

wirelesswaves

The router reboots, "router was rebooted without proper shutdown (cause 1)" 2 rifs sent to support 5 mins ago. Ros4.17 is unaffected.. But seems that ros5.xx had same problem regardless of version.. Currently back on ros5.11, but the client has moved on and no longer uses the phone. She is...

wirelesswaves

did you at any time in the past do a backup and then copy that file to another MT routerboard. It happened to me and took a few days before I figured out what was going on. The backup copies across the original Mac's from all interfaces.. Then stupidly you remove the old machine, bring it back to th...

wirelesswaves

A few weeks ago, my rb433uah starting crashing for no apparent reason. I downloaded to ros4.17 and the problem went away. So after 2.5 days I reinstalled ros 5.11.. ( I previously tried 5.14, 5.18 and 5.20) But all suffered the same problem. At the same time as I reinstalled 5.11, one of my customer...

wirelesswaves

no problem The first rule I pinched from the forum years back, I use it daily in my gateway machine (but with a ,24 address to limit ALL customers) Earlier in the year I added the same rule to include UDP.. ( not that well documented) The second rule is what I use for clients who abuse my rules.. I ...

wirelesswaves

add chain=prerouting action=mark-packet new-packet-mark=>100 passthrough=yes connection-limit=100,32 protocol=tcp add name="queue1" target-addresses=192.168.1.1/32 interface=all parent=none packet-marks=>100 direction=both priority=8 queue=default-small/default-small limit-at=0/0 max-limit...

wirelesswaves

Hi I have been playing around with a Dell PE860, I am running Ros6,0 within Virtualbox. So far all seems to be working fine. However, now I want to include web-proxy cache and there are a number of options. Any users out there have any personal experience? 1: use the MT proprietory onboard cache 2: ...

wirelesswaves

Here is update..

Rolled back to 4.17, router ran perfectly for the next 2.5 days..

Upgraded to 5.11 at 01.30 this morning and already at 09,41 it had crashed!

Is there a version of Ros 5.xx that isnt suffering these sudden and unexplainable crashes??

wirelesswaves

Rolled back to 4.17.........20hrs now with no crashes. But I am now really hacked of, this is the first time I have been on the end of Router OS mysterious crashes. Over 200 days then Bam, suddenly it starts happening. I am now really sympathetic to others. I now have a quad core 2.3Ghz poweredge se...

wirelesswaves

Yes. It happened again twice in the past night.. Got up at 5am and downgraded to ros4.17. Tip for anyone else.... Dont forget ros4.17 didn't include the all mode wireless package (nv2 etc is extra package)..... ( I remembered that! ) But forgot 4.17 didnt have PCQ with bursts. Also note: Essential t...

wirelesswaves

Hi I think I have seen a number of users with the PE860, would someone be kind enough to pass on the tips regarding getting the ROS onto the HDD (preferably without removing the drives) My machine has a quad 2.3Ghz Xeon core with 2 x Barracuda 1500GB drives !!. The machine also uses the external UCL...

wirelesswaves

Hi, did you get anywhere with this, see my post!

Just started happening to me on a RB433uah, this week..

Power supply ok, power lead 1m long.. 24V.

UPS replaced yesterday.. Upgraded to ros5.20,, still the same--

Completely unrelated to traffic... Temperature mild.

wirelesswaves

Hi, on the 26th of Oct, I was alerted to the fact that my network backups had failed to go to my email account. On further investigation I discover that my gateway, after over 200 faultless days has started to reboot itself. Weirdly a ROS5.17 npk package that was sitting idle in the files directory ...

wirelesswaves

not sure if I am understanding your set up correctly.. As Surfer Tim said, post setup.

But I think you need to put wlan (master) and wlan (vap) into a bridge.. Then change your dhcp client inetrface to the bridge, so that the bridge gets the IP instead of the original wlan1 interface.

wirelesswaves

Well, unless you are using a 5Mhz channel width, those 2 services will be interfering with each other.

The bandwidth at 54Mbps is 20Mhz, so services on 2452 will also occupy 2442 and 2462..

regards

S

wirelesswaves

Ok

So are you saying that you have services on 2462 and 2452 on the same pole.

wirelesswaves

I think I would be very alarmed at the -20dbm, -24dbm and the -33dbm signal read from GO-wifi services. I cannot find out any details of the vendor of that MAC address. I don't recall seeing such levels even when I have experimented with cpe/ap setups in the same office. Where are their services?, a...

wirelesswaves

stop messing around with all that other stuff and get the wireless side sorted out first and think things through logically. As I said in post http://forum.mikrotik.com/viewtopic.php?f=7&t=57836&p=296211#p296211 You don't need a great deal of maths or experience to figure out that you have a...

wirelesswaves

You should listen to what people are advising you! http://dl.ubnt.com/ubi_mtik_power.pdf Furthermore if you "wind up" the power of these cards beyond their design limit you will cause yourself more interference and others too. Its not ALL just about power, its more about "cleaness&quo...

wirelesswaves

Inox,, why are you laughing,,, do you think it is a joke?

http://www.scribd.com/doc/63900500/24/R ... -Periscope

http://www.qsl.net/n1bwt/chap8.pdf

http://www.mervnorton.com/Articles/Passive.pdf

wirelesswaves

You can use passive reflectors for that distance. Is 10Ghz allowed in your country? If so, then there are some examples around on the internet for such a system. Basically its a periscope, you will need to engineer the top reflector carefully and the angles will need to be adjusted by the poor chap ...

wirelesswaves

Are you actually passing traffic over the link when you see those figures. Try opening a mac-telnet session between the 2 units, (just so that some traffic is passing between them or use one of the units to ping the other) Then check those reported rates again (whilst traffic is passing) Report back...

wirelesswaves

Just spotted your post!

Disconnect earth to top end of STP cable.

And you cannot go above 10MB because of what?

Is it because you interfere with the FM services or are you saying that they are interfering with you?

Simon

Ex NTL Broadcast Engineer

wirelesswaves

I think you will find that this is referred to as "PORT FLAP ISSUE" "Rudy" started a thread a while ago, you will find dozens of us in the same boat!!! Incidently, my last Port Flap was on July 19th when I suffered 9 in the space of 7 minutes.. On July 17th there was 1 only that ...

wirelesswaves

When you introduce your new "higher gain" cpe (similar to sextant), if I assume it is to be made in plastic, would you please demand from your company that does the injection moulding for the plastic shells, to include "conductive pellets" in the mix for the back half of the cpe....

wirelesswaves

Distance settings are screwed when using ros5.17 with VAP's. Ping times to customers are all over the place (those connected to the VAP) Yesterday, VAP interfaces said my client was 9km (client at maximum distance), but the parent Wlan said the distance was 31km. Today it says the distance is 41km. ...

wirelesswaves

Any further news on this issues? 45 circumstances of port flap on one AP since 10.25 this morning. On one occasion the port flap was so repetitive that it triggered "netwatch" on a 5s timeout!!!

wirelesswaves

Are all your cpe's Mikrotik units? If they are then use Management frame protection. Does this Guy use Mikrotik too, try doing something like working out of band one evening, use a "superchannel" Does he/she follow you to the same frequency? Are you using WPA2/PSK on your AP? Put a CPE in ...

wirelesswaves

Nomis.. That Tower site I have that I told you about, I have a row of RB411AH, they are all powered by 1 commercial supply with battery backup, ALL units use the power plug and NO poe adaptor in site. So I wouldn't pay much attention to the claims made about poe adaptors. I still have the "port...

wirelesswaves

I did a few years in EMC testing and I am surprised that nobody at MT has considered using conductive materials in the plastic injection moulding. I came across many products that were made of plastic, but were also conductive (like an EMC shield designed to keep the radiation in), it would also kee...

wirelesswaves

Ok, I understand, its a very frustrating problem... Really you need the pair of units sent to you.. I cant cos I dont have a spare RB493. If you send me a spare RB493, then I can remove a RB411 and the RB493 and send them off to you. By the way, its only cos I was bored this morning that I followed ...

wirelesswaves

Yes they are directly connected, all units within a metre of each other... All ethernet patch cables tied and laced together. The RB411's all sit on 1 shelf of an enclosure. and the RB493 beside them. There is a redundant spare RB411ah with a Db card plugged in... Its a "ready to go unit" ...

wirelesswaves

ok.. sorry, sent another attachment before noticing that you are online.. (God you are fast today) Well obviously I cant send in the unit, since its in use... But you can have access if you like., Also,,, when both units report the same thing,, what would we be sending you, the RB411 or the RB493. H...

wirelesswaves

attached is the file that I sent in last year regarding the same issue between the RB433AH and a RB750

(lucky I kept the Paint shop image eh!)

wirelesswaves

Ok. I can send you a log file or whatever you want from an RB493 router with ROS5.9, that is now suffering port flap issues on 1 ethernet port (4) This router is installed at the base of a tower, attached to the router are a number of RB411AH units, each with an individual Db radio card.. All of the...

wirelesswaves

PLEASE EXPLAIN PROCESS CLEARER "For RB1xx and RB5xx users (Old MIPS-LE devices): Before upgrading RouterBOARD 1xx or 5xx series devices (MIPS-LE) to version >=5.17, please upgrade your RouterBOOT firmware by uploading one of the following files to your corresponding device, and issuing command ...

wirelesswaves

Hi Martin Looks like temperature inversions. Take a look at the second graph on first 24 hour period Monday to Tuesday.. Here you can see that the cold air which has been trapped beneath a warm front is starting to disperse. It could be that you also installed the link on a day that there was a trop...

wirelesswaves

dbi is decibels relative to an isotropic source (used in antenna specifications), also in same category is dbd which is decibel relative to a dipole antenna. Neither are related to a dbm, which as Nomis explained is a decibel relative to milliwatt... (used in power measurements) What you are trying ...

wirelesswaves

Moved the "type of client" marking, from the forward chain to the post-routing chain, and then made Tree parent "global-out"

But it is still the same, downloads are matching uploads.

Anyone???????

wirelesswaves

Are you kidding! get those signal levels sorted out first! Maybe your antennas are not aligned! Without using a calculator and based on experience alone, I would say that you are 20-25dB short on signal.

Do you have one of the antennas with chains crossed over.

wirelesswaves

Sorry for the delay, I have been re-reading QOS.. Seems that I had screwed up.. Now I have a problem with, the more I read on the subject, the more UNCLEAR things are becoming. 3 years ago I put into practice the Double QOS which was reasonably well documented at the time. At this time I was using 1...

wirelesswaves

What is height at TX end, studio looks like ground level. My advice would be not to put the link into production until you have experienced all weathers. Ducting may cause an issue on this service. Since both ends are at extreme elevations, if you have a temperature inversion you may find a loss of ...

wirelesswaves

Hi, I have been using PCQ for a couple of years or so without problems and I wouldn't be without it. I thought I understood it reasonably until today. In my winbox session, whilst displaying my queues. I recently added from the menu the option to display PCQ Queues Column. (which I assume to be sub-...

wirelesswaves

http://www.dbii.com/safesurgepro.html

wirelesswaves

You are probably maxing out the CPU of the wrap boards by using the internal MT server.

Use the MT server on a PC and do a speed test to another BT server connected to far end PC.

wirelesswaves

The problem is on the firmware 2.29 come with some problem but I dont know what is exactly the problem but when you downgrade your FIRMWARE your Flap problem will be correct. Really!!!!!!!!!!!!!!!!!! see attached paintshop image of RB750 that is running ros5.6 but deliberately not upgraded from fir...

wirelesswaves

MMM MMM KKK TTTTTTTTTTT KKK MMMM MMMM KKK TTTTTTTTTTT KKK MMM MMMM MMM III KKK KKK RRRRRR OOOOOO TTT III KKK KKK MMM MM MMM III KKKKK RRR RRR OOO OOO TTT III KKKKK MMM MMM III KKK KKK RRRRRR OOO OOO TTT III KKK KKK MMM MMM III KKK KKK RRR RRR OOOOOO TTT III KKK KKK MikroTik RouterOS 5.6 (c) 1999-201...

wirelesswaves

I am begining to wonder if it is hardware related, you remember that I said the other day, that an AP appeared to freeze the other day, and that although I was unable to contact it over the wire, that the customers appeared unaffected. And that was because, the AP had a second wlan interface (backha...

wirelesswaves

Sounds like an excuse for a curry and a good ale... Am I invited too!!

wirelesswaves

No, -80 is no good. I gather you dont need much throughput!. So I would be satisfied with -70. (you need 10dB headroom, since links will fluctuate by 10dB, especially near the coast.) your link looks very problematical since one end is on the coast, and the ther is on top of a hill inland. Almost th...

wirelesswaves

Ok I read backwards your posts.. 1: Those antennas appear questionable .... The vswr you quote is not the same as I read in their specs.. when I read their specs there are stacks of errors on their specification pages... The real vswr is anything up to 1.7:1. The polar patterns are incorrect for a p...

wirelesswaves

Ok I understand..

The signals are way to high and as such the radio cards will behave abnormally at those levels.
So any figures/statistics are going to be meaningless.

If you have to test them on the same bench, can you use a "dummy load" resistor instead of antennas.

wirelesswaves

No its not OK, the signal levels are way too high. Why are you trying them out inside? If I were you I would put them where they should be, select 5 mhz wide channel and try them out. If it works ok with 5mhz bandwidth, then try 10Mhz... I wouldn't bother with 20mhz bandwidth as it looks like you ha...

wirelesswaves

So whats new!!.. Its been around for years, infact it was mentioned on the forum over a year ago. Its not even a new idea! Goes back to the days of WWII, how do you think RDF is done on the roof of police cars, or radio fox hunting done.. There are some benefits of overall system gain by using 2 or ...

wirelesswaves

I have already detailed the equation above, what is wrong with you!!! You see that in the equation for noise, it is square root of (bla times bla times bla times bla).. And one of the blas is "bandwidth"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! http://www.sssoftware.com/docs/wnadoc/glossary.html (r...

wirelesswaves

Honestly, 40 years in radio engineering and you are challenging me!!!!!!!! http://www.qsl.net/va3iul/Noise/noise.html The formula to find the RMS thermal noise voltage of a resistor is: Vn = Root(4kTRB) k = Boltzman constant (1.38*10-23 Joules/Kelvin) T = Temperature in degrees Kelvin (K= +273 Celsi...

wirelesswaves

I am sorry you don't understand, I will wait for you to rewrite science.

S

wirelesswaves

Rudy.

Trust me, noise is a product of bandwidth and it is a matter of basic engineering physics.

http://searchnetworking.techtarget.com/ ... oise-ratio

S

wirelesswaves

describe what you mean by "multi-dwelling" Before you even consider BPL, you need to check your country's and/or local council conditions for this. BPL has been known to cause havoc to short-wave frequencies used by hobbyist like radio-hams. In the US, an entire estate was made BPL, but it...

wirelesswaves

1: Noise is a product of bandwidth. 2: The SNR forms part of the radio card's data-rate control loop. Analogy, lets say you have a fancy sun lounge with curtains to all the windows. And that you bought some furniture that has fabric which fades in UV light. You open all the curtains and all the ligh...

wirelesswaves

Please describe in more detail what you mean by "lock-up". I have abandoned NV2 altogether, excepting on 1 AP that has just 8 clients (continued experimental use!!!!) However most of my network is using Ros5.6 as I have been chasing down those "port flapping" issues, nether the l...

wirelesswaves

The CCQ will start to elevate once the CPE starts transfering moderate amounts of data.

Try pinging the CPEs in question from your desktop or from the AP, and then monitor the CCQ again.

Simon

wirelesswaves

Well it seems correct as I see it. The AP is sending a de-authentification frame to the CPE that is trying to log in. What is not clear is the reasons.. More info would be available with the wireless debug! I was attacked a few years back by a competitor who had got together with a fellow countryman...

wirelesswaves

judging by the rate I would say that is a deuth attack aimed at bringing down your AP. I would start using the "management frame" in security profiles before the attacker gets hold of the broadcast address and uses it to disassociate each and every client to your AP.

wirelesswaves

Rudy, like I explained before. In my opinion and with the tests that I have done, it is definitely NOT "just a logging issue" Dont you remember me telling you on the phone that I had just received an email and sms text from my gateway router which was running "netwatch", that it ...

wirelesswaves

Here you can see that an RB750 is affected

wirelesswaves

Nomis, the RB433 connected to port 2 of the rb750 is using ROS5.5, the RB750G is using ROS5.4.

You said it was fixed in ROS5.4!

wirelesswaves

Absolutely not true... I am still getting port flapping issues, even with ros5.4.

If you want I will send you screan shots of it. And FYI it is now happening 3,4 or even 6 times a day..

Regards

Simon

wirelesswaves

check with Nomis whether 0dbm is a valid level, I didnt think MT cards could be configured that low!

(this was an expensive option, did you not consider the SXT!)

wirelesswaves

Oldman. I re-read my post and its not 100% clear. The script is fine, but the scheduler/s are not crystal clear. I omitted the schedule which calls the script in the first place. That is simple, it is initiated from a boot, then should run every 20 seconds. Thus you see each channel width called aft...

wirelesswaves

Try this: It works for 5.4.... All this script does is to study the "running" status of the wlan1 interface, if the wlan looses connection (0) then the script will start to change bandwidths, firstly 5mhz. It will scan (whatever is in the scanlist or default), It will do this for 5 secs, t...

wirelesswaves

1: Check route from the station to the AP 2: Scan from AP and study how active other channels are. 3: change channel in AP to other end of Band and look to see if situation improves. 4: change station end to 10Mhz wide channel, and set mode to G. 5: change Ap end to 10Mhz wide channel and set mode t...

wirelesswaves

he has already said, -71 + 33dB = noise floor of -104dB

wirelesswaves

add route to next machine so that signal data is exchanged properly.

wirelesswaves

You do not need a program to work out path loss. Its simple, you just have to remember 3 things only. Mathematically AT 2437 Mhz the free space loss at 1kM is -100dB AT 5500 Mhz the free space loss at 1kM is -107dB Every time you double the distance, add another -6dB to those figures. Example. 2437 ...

wirelesswaves

I came to the conclusion a long time ago that fitting multiple cards on same board was a bad idea, and had no success at all running more than 1 card on the same band on the same board. mixing 2.4 and 5.8 seems that there is no problem. Since taking that decision never to fit more than 1 card within...

wirelesswaves

Rudy, Mramos, thanks both for input,, but dont want to drift too far off thread. I want to stay on thread regarding the period of disconnect, and besides I would like to know WHY. The common disconnect time is around 6mins 52 seconds, or a multiple thereof. And if you look at the posts of others, yo...

wirelesswaves

Yes, I fully agree, I posted the same scenarios over a year ago, with the same magical disconnect times. Always around the 6 minute marker. That should be a good enough clue for Mikrotik to sort it out, bla bla bla, All these posts to try this and that setting. Makes no difference what so ever!. The...

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