MikroTik

DirectWireless

But 125 calls, theoretically, sounds good, but I mean from real experience. I'm thinking with and without NStreme, any #s on that?

DirectWireless

On a 5ghz Mikrotik system @20mhz channels, what is the most number of simultaneous voice calls anyone has achieved without a significant quality loss?

Thanks

DirectWireless

But I would RATHER use a Via 800mhz vs. a P4 due to cooling issues and such, so if it worked I can get these Via Nehemia (sp) 1400+ boards which run about 1ghz for less than a hundred dollars, vs. a Commell P4 board that's almost 300 without a processor.

DirectWireless

Has anyone tested ROS V3 with VIA boards - last posts I've seen on that are 2.9 version, with mixed results. I need to re-do some tower equipment and instead of RB532's, I need something capable of much faster speeds and packet aggregation for VOIP. I was thinking about the P4 MiniITX with a Mobile ...

DirectWireless

Wow is that 2.4ghz on one AP or multiple APs? 60 clients in itself is impressive. Is it Mikrotik CPE's or regular 802.11b/g stuff?

DirectWireless

But I'm looking at 8+ phones calls from up to 8 CPE's - plus data- so I could theoretically see where 8x64k could be a significant bit of small packets at 512k per node, 4Mbps for all 8 nodes making 64 phone calls total. If the packet aggregation worked optimally this arrangement should work well an...

DirectWireless

Well here's what I'm thinking: 6 AP's on the tower, with a 5.3 VPOL and a 5.8 HPOL 120 degree sector in each direction. Using 1 P4 MiniITX board per pair of radios, and NStreme w/Polling. Each client gets a dual-polarity dish, dual radio, with separate TX/RX. Using some routing and/or filtering tric...

DirectWireless

We use 400mw to service hotel/motel using outdoor MT AP's pointed at the building w/ 9db sector antennas. You are correct, the AP's extra sensitivity plus 9db antenna compensates for the low output power of the laptops. But most laptop users are heavy on the download side, and light on the upload, s...

DirectWireless

I've been off forums the past few months doing some wireless equipment research. I currently have an all-MT 802.11b network (some 2ghz-5mhz stuff now too, and a separate all-5ghz-10mhz network too). I've been playing with Canopy 5.7 to deploy a new business VOIP network, but Canopy Advantage is 14Mb...

DirectWireless

Well some of the whitepapers did the following: Disable CSMA/CA Disable ACK timeouts Disable Retries (only if NStreme does that already) Shorten the inter-frame spacing / random backoff Some of them actually had their own MAC layer - like SoftMAC, which actually is a raw data transmitter. Also, you ...

DirectWireless

In Winbox you have to go to the Status tab, or you can see it by PRINT STATS on the /interface wireless on the console.

DirectWireless

2 mangle rules, one for packets going TO your Asterisk server, one for packets coming FROM your Asterisk server. No need to worry about VOIP. Just make sure you have set up one main queue for each interface, and 2 (or more) queues - one for VOIP, one for everything else. Set your everything else lim...

DirectWireless

Not to mention CPE to CPE performance can be limited due to the fact that it's going from the CPE, to the AP, and to another CPE. So you run into packet collisions constantly. The reason for this is your SIP phones are directing the calls to each other directly, bypassing your QOS / traffic shaping ...

DirectWireless

Well I'm looking to support VOIP (4-24 lines per customer), and high speed internet (2Mbps-10Mbps per customer) for between 10-15 customers per AP. I have already done what you've suggested, except I just route the data back to my main server via backhaul (and use basic IP rather than PPPoE). I don'...

DirectWireless

Now that i see that Aruba stuff, it seems like even a better idea.. too much burden is placed on the AP for processing, it seems like having a remotely installed processing unit might allow even a RB112 to get full throughput instead of needing bigger computers up top. I did a BW test from a P4 2.8 ...

DirectWireless

This would be great.. then we could use Mikrotik to offload SCADA system information, or even remotely connect serial-based cash registers,terminals and such... YES YES YES... I could really use this feature! Mikrotik could be a usable solution (and fairly inexpensive) to use for SCADA and even be a...

DirectWireless

I had this idea today since many of us are always trying to put really fast computers on tall towers and often times fall prey to heat problems and reliability. The RB532's of today aren't fast enough to run an NStreme AP. And it's far too expensive to mount 4 or 5 P4's on a tower just for redundanc...

DirectWireless

Well, I have a 3 clients on one unit, a WRAP board, on 5ghz-10mhz, connected to an RB112 at 2.5 miles away with WDS that gets about 9.5Mbps TCP, 17Mbps UDP. That's using the RB112 as the reciever, and a secondary board here as the BTest source. No NStreme. If I turn on NStreme, the CPU maxes out muc...

DirectWireless

The big problem with NStreme on heavily loaded AP's is CPU speed. The average RB230/RB532/RB112 doesn't have enough power to deliver 30Mbps of NStreme packets to multiple clients. A board that uses Pentium M processors or similar is necessary to really make it work. Like I am testing now a Biostar b...

DirectWireless

The only real reason to use dual antennas is to stay within power limits on transmit, so if you have a 26db SR2, you have a 10db sector panel (assuming FCC 36db EIRP). But legally you can use a 20db sector panel to recieve, so you have an extra boost. But in reality, you have a reduce vertical cover...

DirectWireless

You could use mangle or hotspot. Mangle, you would just create a rule to mark packets "allowed" by MAC-Address. In the filtering, create a rule to block all forward packets, except those with the flow/connection mark. Hotspot works like access-list but I am more familiar with the regular r...

DirectWireless

Great wiki article. I'll definitely work on that and if I reverse it (for "N" connections, rather than just 2), I'll repost another solution. The persistent load balancing is exactly what I had in mind, although it's going to have to be scalable, and it looks like 5 rules per server IP. Re...

DirectWireless

Well if I get hit by a bus the company will be in serious trouble, because it's my company. Actually, I know another local certified MT admin that could easily help us out (we help him out too) if I were sick or in the hospital. And the applications would be in trouble too because they are all custo...

DirectWireless

Has anyone utilized the address lists and NAT rules to dynamically load balance 2 or more servers (web, webmail, etc) that require stateful load balancing (like ASP, PHP scripts do)? Even VOIP / SIP servers could be balancing this way I would think. My idea was to dynamically add a new "client&...

DirectWireless

Mikrotik would certainly be a strong contender if they included a software based CALEA module that could be activated or deactivated depending on country (or usage - a dumb AP MT unit may not need CALEA where an edge router would).

DirectWireless

But WDS repeating can do unreliable things to your phone's packets. They look at latency, packet quality, etc. Your best bet would be to mangle your phone to BCM traffic (all IP to BCM, BCM to all IP) with a rule, set another mangle rule to mark everything else. Setup a queue tree with a top priorit...

DirectWireless

Well, I don't think any single remote wireless link has more than about 10 phones, because of dual BCM servers in the main buildings. The majority of phones are digital direct to the BCM, but not IP. The BCM's themselves are connected via a dual 5ghz-turbo ROUTED link (about 70Mbps TCP per link), an...

DirectWireless

I did some testing today between a RB532 (no other card other than an SR9), and a WRAP w/ an SR9. 2.9.18 on one side, 2.9.27 on the other. I used AP Bridge w/ NStreme/Polling, WDS dynamic. On the WRAP I used Station-WDS, NStreme/Polling. Bridged it all together, and picked up DHCP right through it, ...

DirectWireless

BCM, as in a Nortel system? We did a 5 building network, using Mikrotik w/ Atheros CM9's, that uses IP phones in 3 of the buildings, and the other 2 buildings have BCM servers, with a set of lines trunked across the main link to the unit with the T1 PRI on it. We set mangle/prioritized the BCM commu...

DirectWireless

Well isn't some of the reason for switching from bridging to routed to reduce the amount of inter-node broadcast traffic, right? Also to drop the number of duplicate transmissions across the network too? Now let's say I disabled all broadcast MAC and IP at the tunnel AP side, and used proxy-arp from...

DirectWireless

I'm wondering, I want to switch to an OSPF routed network, and still have seamless roaming between AP's on my network, currently I have about 13 APs (sectorized, some cover 240 degrees, others 360). I've been thinking about this a long time, I have an all IP network, and either I would use IPIP or E...

DirectWireless

Safe mode has been awesome for me... especially from home if my system starts going low on throughput from interference, I can telnet, start Safe Mode, change the channel and see if it disconnects me or not. Often times it doesn't, and the channel change is successful with more throughput. I think I...

DirectWireless

I have a slight problem. I have a wireless customer with 2 internet connections, one of them ours, another is a cable company. Currently, we are their backup connection so the default route is to the cable modem. We provide their email, web and anti-spam services. It recently came to my attention th...

DirectWireless

Yes, I have investigated this for the same reason you have. Simply add the Virtual AP, attach it to a VLAN interface, tagged with a different VLAN ID, and set up a PtP backhaul or VPN tunnel to their office, and send all of the VLAN marked traffic to them... I believe you have to "bridge' the V...

DirectWireless

Well, preamble-mode set to short on both, compression sometimes can help too (but I don't usually use compression). Disable connection tracking if it's just a bridge, also check your CPU usage to see if its high and something else needs to be disabled. Set your data rates to whatever the best you ca...

DirectWireless

That sounds good. I'm all for bigger cable except the fact that I don't like the idea of any loss - I actually prefer the IDU / ODU style wireless stuff where a ultra-smart base station is at the bottom, and using commodity cable, you run it up the tower. Of course, our 802.11 stuff doesn't do that ...

DirectWireless

I've been considering changing my towers from WRAP / RB at the top to installing amps at the top, and running LMR400 down the tower. Most of my antennas are 16db sectors, and I was thinking about running some 23db amps (3db between cable and connector loss to make 36db EIRP). I have 3 towers I would...

DirectWireless

But my point was regarding MAC broadcast where as a suggestion I had mentioned using MAC broadcast to the internal machines, where another user said that would be more insecure due to promiscuous mode. I was pointing out that it's not much less secure than what most of us use. And if you're tunnelli...

DirectWireless

So what is it that every other wireless bridge vendor is capable of doing with the simplest of hardware platforms, with no configuration, no compatibility problems, no need for "MAC NAT port forwarding", and all using a single MAC address? All without WDS? Why doesn't Mikrotik do the same?...

DirectWireless

So the big question from me, for all of those who say WDS is the "right way", why is it that I can connect 32 or 64 computers with a CB3, which "MAC-NATs" all the machines automatically without hurting any high level protocols whatsoever, yet the wireless AP only shows a single M...

DirectWireless

Has anyone tried using the MT RSTP mesh (as in the wiki) but with instead of using a single radio, using dual 5ghz radios, connected to omni antennas? I'm not sure how you would make it "hop" over the bridge for optimal packet forwarding though. See the diagram below: A B ---- C D ----- E ...

DirectWireless

But why was my workstation able to get an IP address THROUGH the bridge (no WDS) yet not able to ping, or pass IP? It says to me that MAC layer was bridging but maybe it was an ARP issue - I tried PROXY-ARP but no avail (which I figured would "NAT" the internal MAC). It doesn't make any se...

DirectWireless

I want to be able to see the signal strength of my clients from the map, but sometimes they connect to one AP, and sometimes others. Is there a way to "hide" or move the line when it's not connected? I know I could make a line per AP, and have it read, but I'd rather be able to just watch ...

DirectWireless

Well the router has a static IP, and the client connected to ether1 is an XP client in DHCP mode.

DirectWireless

I was playing around with a 2.9.23 router today, with ether1 and wlan1 bridged. The wireless interface was set to station mode (not WDS). On the station connected to ether1, the station was assigned an IP address *from the wireless AP*. Now I'm more of a 2.8 kinda guy, but I was always under the imp...

DirectWireless

I'm a bit confused because you have the same SSID, encryption but 2 different hotspots? That's strange. Different users too? If it was, I wouldn't understand how users of hotspot 1 would be able to differentiate between the two and vice versa. But if not and you have the same users to both RB's then...

DirectWireless

That does make sense, I think I might have redownloaded the file after I had a problem from the first one now that you mention it.

DirectWireless

Nobody seems to have chimed in to help. You say there's 6 computers, most likely connected by a hub or switch. You need to do that ping from all 6 computers and compare. If all 6 have the same problem, it is most likely a switch or router problem. If you bypass the switch and plug direct into the ro...

DirectWireless

Okay, here's a scenario I've been considering. Let's say I'm covering a hotel or condominium using a 9db sector panel antenna, 120 degrees, 15 degrees vertical beam. Using a SR2 or Senao card I get 26db of output power, making my output power 35db EIRP. However, the laptops on the other side average...

DirectWireless

I had to netinstall 3 2.9.18 to 2.9.25 upgrades this week on RB112's. I did not change the file or redownload it, it worked on 3 of them, and 3 of them it failed on. Some I used FTP, others I used Winbox drag and drop, and it didn't seem to matter (3 good ones were combinations of both also), and 1 ...

DirectWireless

I have a great interference test I'm going to run. I have a Trango 900 AP on a rooftop colocated with a Verizon paging system, which provides a cozy -20db low 900 band chunk of interference constantly. The Trango 900 is barely able to keep up at 2.5 miles. It doesn't work unless it's -81 or better s...

DirectWireless

On the SR9 card should I be using manual TX power with the TX power list off of Ubiquiti's datasheet, or default?

Thanks

DirectWireless

I've found all the SR cards make a difference - if you use the MMCX connection on SR2/5 you must set antenna B. On the SR9, I found however that j6 is B and j8 is A. I am not 100% but when both cards on J6 are set to B I get -56 signal, on A, I get -90 signal (in the same room). Of course that's lea...

DirectWireless

I'm not sure what version of Windows server you are using, but Server 2000 has "Internet Authentication Services" (i.e. RADIUS) built into it, and can natively authenticate against an AD username / password. So you can use RADIUS HOTSPOT to logon via the AD username and password, or you co...

DirectWireless

Is it possible to get the noise floor via a script? Here's what I want to do for a group of APs: Set all to WDS-slave on boot. If no WDS master connects within 60 seconds, it scans all channels and auto selects the least noisy channel, sets itself to AP-bridge to become the WDS master. Check every 6...

DirectWireless

I had this hypothesis the other day - I want to allow my clients to freely auto-select the proper tower based on signal, interference, without relying on a disconnect to trigger a roam It came to me because I was testing the nearby cities nice fiber-backhauled Tropos network (all channel 6), which v...

DirectWireless

How does Mikrotik differentiate between maximum limits? Does it follow the proper formulas (-1db per 3db gain in 2.4) on the PtP side, and 36db max on the AP side (PtMP rules)? Or are both sides always 36db? My issue is when bridging a PtP link, I usually use AP-Bridge and Station-WDS on v2.8, but o...

DirectWireless

I have a whole MT wireless network setup here. I am starting to use MT for clients also, and want to use 802.11g mode as well as B mode. I know the speed downgrades in most cases, but the B users are mostly daytime, while the G users are mostly nighttime. I am only using 2.8.28 on my AP's except one...

DirectWireless

Is there a RADIUS attribute that will add a comment to the Registration list? I have been using access-list until now, and I have a radius server, but I can't see the client's name (which is what I put in the comment) anymore unless I leave them in the access-list.

DirectWireless

In the WIKI Mesh version, the entire system ether1/wlan1 are all bridged together into a single network.

DirectWireless

What about antenna polarity? Maybe the SU is on Horizontal while the laptop is on vertical? A Horizontal SU (set to AP mode) and a vertical laptop would see each other at short range, where the SU would not see the tower on Vertical. What about the antenna connector? Maybe you've got it hooked to B ...

DirectWireless

I don't believe the Blinking works on WRAP boards. I don't think there's anything you can signal or blink on a WRAP board to make it show signal via LED unless the serial port can be accessed via scripting, and then you could wire up a circuit to one of the lines (DTR/DSR/CTS/etc). If the DTR line g...

DirectWireless

Well, my experience with superchannel on 2.8, is that you need to specify like this: 5725-5805 in Winbox for it to scan those channels. On the AP, no scan list is necessary. Did you make sure that all the other settings match (NStreme, WDS, etc)? Does a Wireless SCAN show the AP from the SU? If you'...

DirectWireless

But channel coordination among your own equipment might be easier. Such that you could use 12 30degree panels on a single tower, you could skate around interference easier with a pointed approach. Not to mention that the speed is no longer CPU limited with a RB532, so you are free to process other t...

DirectWireless

I have an idea! How about this - I found out you can "blink" the LED for less than 1 second, specifically, 250ms, which makes it essentially turn on and off immediately. Now, using a defined delay time (less signal, more delay, more signal, less delay), you could do something like: No sign...

DirectWireless

marksx:

What kind of boards are you using in the picture, and is that box indoor or outdoors?

DirectWireless

I had a chance to test the Mikrotik MESH configuration using 3 AP's in my office - it worked! AP to AP (ethernet coming out of each side) I got 22Mbps download from my web server. With a repeater in the middle, it did slow down quite a bit - only about 8-10Mbps. I did a slight modification to the co...

DirectWireless

I had a configuration similar to this except the master was another brand WDS - 2 chained wds slaves worked fine, except the master radio to radio #3 still got a -95 signal, so I had to do static WDS instead of dynamic so it wouldn't cause occasional loops. #2 to #3 was about -58, and #1 to #2 was a...

DirectWireless

I have a customer that I installed a Hotel Wifi network on their existing broadband connection ( a small local DSL company). I have a Linksys wired router that separates the Wifi from the Hotel's LAN. I used a IWE-1100A as the WDS master, inside the building, wired to the Internet, and the 2 Mikroti...

DirectWireless

We sell MT routers to corporate customers who manage them themselves (we provide consulting support ) and man I had a stack of phone messages this morning when I came in from frantic customers!

DirectWireless

I've been looking at a lot of technology lately, carrier class, that uses TDMA instead of CSMA/CA like 802.11 uses, and I was wondering this. Is it possible to extend NStreme to support: 1. Intra-AP packet syncronization like Canopy, Skypilot has, basically syncs packet transmissions and reception t...

DirectWireless

True, but I can turn off one link without messing anything up and at least play with channel settings and such - like one link is 5ghz, normal, and the other is 5ghz-turbo, max NStreme optimizations, etc, so at least if that portion fails the other is still there as a standby.

DirectWireless

I'm scared to try bonding again - this is a link that trunks the telephone services between a city hall and the police station, plus provides the VPN connectivity for the patrol cars. That's 24/7 - last time I tried bonding it hard locked up the router, and I had to reboot it in person. Scary.

DirectWireless

I have a customer who has a Mikrotik router for many uses, including using it as a VPN concentrator for Sprint wireless card remote clients (using PPTP VPN). Every few hours, sometimes every few minutes clients have disconnects, and sometimes they can't reconnect right away. I have been over the con...

DirectWireless

As an add-on to this, would that require the server itself to have a separate gateway for each subnet? Example:
192.168.2.48/29
User IP: 192.168.2.50
GW IP: 192.168.2.49

Would the router need to have 192.168.2.49 in it's IP address table?

DirectWireless

Uldis: I did post a separate message regarding bonding and I think the problem was I was ap>station instead of bridge>bridge.

Thanks. I'm going to try bonding tonight and see how well it works!

DirectWireless

I just upgraded to 2.9.13 from 2.8.28 on a link, which has dual redundant radio links (2 x 5.3 ghz complete links). Currently I use dual-gateways to route over each link set. I tried to make bonding work, unsuccessfully. Here's what I tried to do on each router: bonding1 > slaves: wlan1,wlan2 bondin...

DirectWireless

Well, I know that it is probably possible to get more, however I am using 50 feet of LMR400 cable on each end, plus I found out that time I was using these cheaper pigtails (low gauge wire) that are worth a few DB of loss as well. I imagine that I'm losing 10-12 db in the whole deal, I have seen low...

DirectWireless

I just finished upgrading a 2.8.28 to a 2.9.13 link between 2 buildings. System is a 1.8ghz Celeron on an Abit motherboard, CM9 wireless cards, -57 signal, and 1/4 mile distance. I'm using 5.3ghz for the link since it's short range (and I use 5.8 on my nearby tower). Using AES-CCM with WPA2 for encr...

DirectWireless

I got a copy of the rules I put on their system. Any help would be appreciated. Thanks ;;; Port Forward for HTTP to Web Server chain=dstnat src-address=0.0.0.0/0 dst-address=<public IP> protocol=tcp dst-port=80 action=dst-nat to-addresses=192.168.2.5 to-ports=0-65535 ;;; Port forward for HTTPS to We...

DirectWireless

Well, I don't quite remember the rules EXACTLY, but in order to make it work, I had to do a NAT like this: dst-address=<public IP>/32 dst-port=80 protocol=tcp to-src-address=192.168.x.x action=dst-nat On my 2.8 server I do this: dst-address=<public IP>/32 dst-port=80 protocol=tcp to-src-address=192....

DirectWireless

I have a customer using MT 2.9 that I have a masquerade setup for his public web servers (public to internal). However, it is showing on his web tracking logs that all the traffic is coming from the router's IP address. My 2.8 server does not do that. Is there something different in 2.9?

Thanks

DirectWireless

I have never used MT before as a CPE radio only. I remember for the longest time there's been no way to bridge an ethernet and wireless-station together. I'd like to avoid WDS, and he's what I thought of: 1. EOIP tunnel between ether1 and main gateway 2. NAT between interfaces I was wondering if EOI...

DirectWireless

How about using scripting to auto-assign a new WDS link to an (unknown) interface IP address... Something like, initially creating say 8 subnets with no interface, and then as each WDS connects, it gets assigned a subnet, and then the IP address is enabled. At disconnection, it disables the IP addre...

DirectWireless

I had heard recently that WPA has now been broken as well as WEP now. So that leaves WPA2 (which may or may not be broken), AES, and the various VPN types (IPSEC, PPTP). What I'm wondering is, what is still secure? Is PPTP secure? What is so broken about WEP vs say, IPSEC? There's no real "stic...

DirectWireless

You know I was investigating something like this - I noticed you mentioned blocking forwarding in the firewall - why not just disable bridging completely and just use the dynamically created WDS interface directly with an IP address?

DirectWireless

I did some testing with WDS (non-bridged), and I was able to assign an IP to the interface and ping across it. It is recognized in the OSPF section as an interface, so I am in the process of setting up an OSPF test network. However, I did notice the dynamic WDS interface will have no way to have an ...

DirectWireless

Well, in a scaled down version of what you're talking about, I have a hotel that I used WDS to provide services. Inside the building, I had a WDS master node that connected to the internet. Outsite, within line of sight I have a repeater & sector panel aimed at one end of the hotel. At the other...

DirectWireless

well I did have this idea the other day regarding WDS. What about using using dual radio, one for a backhauled, NStreme WDS (no clients), and a secondary that is an AP for clients. I'm thinking 802.11a on the backhaul, and b/g on the AP. On the WDS side, you could force the radios to only associate ...

DirectWireless

So you have network of WDS repeater omnis, or is it multiple radios with WDS? Like my network, I have set backhauls, with directional antennas, all set to WDS mode (point to point) for bridging. Ultimately, given perfect LOS and tower proximity (<5 miles) I'd like to use 5ghz omnis for WDS without p...

DirectWireless

Being WDS, how is it routing packets through the network, avoiding loops - manual WDS entries, or STP?

DirectWireless

Yes it is - simply add each card to the bridge, and every WDS needs to be set to default-bridge=bridge1. I have over a dozen MT AP's setup exactly this way. Now I did notice you mentioned 2 cards, which should be wlan1, and wlan2 - if you are trying to do 5.8 and 2.4 on the same card, it will not wo...

DirectWireless

I have a bridged network, with individual backhauls to each tower. I have 2 subnets running, bridged, over this network. But I'm wondering, if packets going to a client at one tower, does that packet also get sent to the other towers as well? I'm using a 10/100 switch (not hub) on my main tower. The...

DirectWireless

Those #'s were very similar with and without NStreme. I posted another one with both sets of #'s on the Wireless forum. I have a set of RB512's now that I'm baselining with the 2.9.8 regular package first, and in a few days I'm going to run external speed tests on it.

DirectWireless

I tried using 2.9.8 with the standard wireless (not wireless-test), on a similar config, both WRAP boards, except at a distance of about 3.5 miles. I was able to get about 18Mbps TCP, 25-28Mbps UDP, with NStreme enabled. It's an active, important backhaul, so I'm not willing to go to wireless-test y...

DirectWireless

Well, I have some experience with using 4 channels in close proximity (1 mile apart towers with LOS, 1 tower with 3 sectors, 1 tower with 2 sectors, 4 of them facing each other). I think one thing you can do is use a 4 channel scheme (1,4,8,11), which lowers the chance of self interference. Or, you ...

DirectWireless

Yes I have done some testing with small channels & CM9 cards. I posted several messages including speed tests using the 5, 10, 20 and 40 mhz channels (5,10, regular,and turbo) in both 2.4 and 5.8, all indoor tests. I did notice this: 2.4ghz-g-turbo: -42dbm rssi 2.4ghz-onlyg: -36dbm rssi 2ghz-10m...

DirectWireless

I'm not sure if this is a fluke but everytime I've done testing with the new wireless-test package, I get TCP/UDP like these: 5mhz: 5Mbps/7Mbps 10mhz: 15Mbps/18Mbps 20mhz (standard): 26Mbps/37Mbps 40mhz (turbo): 27Mbps/52Mbps I'm guessing I'm maxxing out the same-unit bandwidth test (WRAP boards) on...

DirectWireless

Well if you use polling for the AP, don't you have to enable polling on the station side as well? I know polling on the AP side would be helpful, it would reduce a lot of hidden node issues and self-interference.

DirectWireless

I was reading about a AP mode that some wireless chipsets support called PCF (Polling Coordination Function). It describes a mode that is a polling contention free mode that only some chipsets support (Atheros but not Prism). It sounds to me like a good physical layer solution for WISPs to eliminate...

DirectWireless

I was pretty amazed at the transfer rate of 5mhz and 10mhz channels... 5/7 Mbps TCP/UDP, and 12/17 TCP/UDP. I'm using regular WRAP boards and CM9 cards in my office. I've got NStreme enabled. It's not that that's really shocked me. What happened next is I tried 5ghz-turbo on the same bandwidth test ...

DirectWireless

I'm not sure how to script freq monitor for a time period.. I'm curious to see if that fixes my problem though.

DirectWireless

I wrote a combination script for people who have signal fade that is strange. I have a major backhaul that for days or weeks will work great with a -64/-68 signal, then one day it will keep dropping and have a -88 signal. Change it from 5745, to 5755 (for superchannel) or 5765, and it works fine aga...

DirectWireless

No, I haven't even designed the mesh system at all yet - just throwing some ideas together that maybe we could put together into a working OSPF routed mesh dual,tri-radio Mikrotik install script. I would use EOIP tunnels to make the Wifi-client radios connect on the same subnet, to allow intra-cell ...

DirectWireless

I don't know what horror stories you've heard but I use that exact setup except with 3 CM9's and 1 SR5, and haven't had any troubles at all.

DirectWireless

I tend to agree a bit with the WDS approach. We went from a all-Cisco 340 network, in the proprietary "Cisco WDS". Other than lightning, we rarely had reliability problems. It wasn't the fastest thing in the world, but it was pretty good broadband for the year 2000. Now we use Mikrotik wit...

DirectWireless

It's been a long time since I've asked this about polling, but now that NStreme's "Out of the bag" so to speak, I was hoping I might get an answer from the experts. Here's my questions: 1. Does NStreme Polling completely override the CSMA/CA of 802.11, and make it time division duplexing? ...

DirectWireless

I know I've asked this before, but has anyone successfully been able to configure MT to be a routed Mesh system (2 SR5 backhaul radios, 1 SR2 rebroadcast)? Now, with dual radios, WDS would not be as performance killing as it normally would be I would assume, but what would be the optimal configurati...

DirectWireless

I wrote a batch file to do this (for 2.8) that you could modify to do multiple IP addresses from a text file: UpdateMT28.cmd: @ECHO OFF if "%VER%"=="" set /p VER=Enter version to update to: if "%1"=="" set /p IP=Enter IP of Mikrotik Router: if "%1" N...

DirectWireless

I have a link that does 55Mbps UDP, 48Mbps TCP that's 1/4 mile apart, 5ghz-turbo, NStreme on 1.8ghz Celerons. That's using CM9's, 50 feet of antenna cable and 29dbi dishes (on each end) with a -51 signal level, and using the MT boxes themselves to generate bandwidth. Now that's on 2.8.27, I'm awaiti...

DirectWireless

I tried MT with STP, setup to prioritize 2 backhauls, and I had more headaches than I can count... I had things crashing on opposite ends of the city one after another from it taking too long to find network loops.

DirectWireless

Bridging can be a headache sometimes, but for us it's paid off in redundancy. As an example, we had a AP-sector go offline on us, and another panel on the tower took over the clients almost instantly. Routing would not have allowed that and they would be offline until it was repaired.

DirectWireless

Oh, water leakage has been a headache for us too - we had some guys climb one of our taller towers to put up equipment, and found months later he didn't put any tape on the LMR400 connections (crimped also). I can't see why it would keep roaming - I have a hard enough time getting them to switch whe...

DirectWireless

Well, in general you could use mangle to get UDP port 5060 for the SIP, you could connection mark it, and then prioritize based on the conn. mark - that's what I do, except I use my source IP / dest IP and only prioritize my own VOIP services (not others ). You could mark just SIP and prioritize the...

DirectWireless

We have this exact setup on 5 towers... SSID broadcast off / same SSID, different channels... We have clients hop from sector to sector, tower to tower all the time. We have a few mobile clients that go all over the place, and others end up hopping, let's say if there's an equipment problem or too m...

DirectWireless

I noticed you can enable polling without enabling N-Streme. Does it work, like using a CTS sending technique, or is it really not working when NStreme is off?

Is there any future plans for support like that?

Thanks

DirectWireless

So when using SR5's I need to use a single-PCI to miniPCI adapter, or is it only in the RB200's PCI slot it can't do it?

DirectWireless

I have an RB200 with a 4 CM9 cards in it currently. I would like to replace 2 of the 4 cards with SR5's. Can the RB200's PCI slot support that much current draw? I'm using a 12V DC power supply plugged in directly (no POE).

DirectWireless

Even worse you really can't have the same subnet on 2 interfaces... Like here: 192.168.0.5/24 on interface ether1 192.168.0.6/24 on interface ether2 Both gateways are 192.168.0.1. The problem is that when the router tries to go to the gateway, it doesn't know which route to use (.5 or .6). What I wo...

DirectWireless

For cooling I've thought about using a metal box and basically channel outside air only across the heatsink (and maybe powerpack) using fans, and keep the rest of the box sealed... Maybe mount heatsinks outside the pipe itself so the pipe itself can absorb heat from the box... Maybe like a 3" p...

DirectWireless

What is "*) improved wireless TSF handling;" in the changelog mean?

What is TSF and how was it improved?

DirectWireless

I did this experimentally, but what I did was this: Mark the TCP Port 80 traffic flow as "Web" in Mangle rules Setup a policy route in IP Route as follows: Create a table called "WebProxy" Add to it 0.0.0.0/0 gateway=gateway_1, gateway_2 Under Rules, create 2 rules (one for each ...

DirectWireless

The WDS link failure that the 2.8.24 changelog refers to - what are the symptoms of that? Does it come back up?

DirectWireless

What would I do to write a script that runs frequency-monitor every 24 hours, and email the result to me?

DirectWireless

At home I'm using a CB3 with a Mikrotik AP on 802.11b. I have a Asterisk server at work, and use a Grandstream ATA-286. We use it all the time to make calls (incoming and outgoing) and it works great. I'm going to try it in my car soon (we have probably a 3x8 mile area of coverage using sector panel...

DirectWireless

What model of 722mhz and 1ghz via boards? I thought some via boards had bad throughput problems?

DirectWireless

And the heat is the reason for needing bigger dishes - but we had the luxury of rack-mounting the computers in the server room, so they are in nice 2U rackmount cases. Unfortunately the one building's third-floor server room was 50 ft from the roof conduit. The other building was a single story, wit...

DirectWireless

Well as it should be, if you create NEW site (different IP) that serves no other purpose than telling your customer that they didn't pay the bill, I don't think google would ever get to it to index it, right? I have it setup on a separate port on my IIS server, and seeing that it takes ANY site addr...

DirectWireless

I was running the bandwidth test ON the system, and was running around 50-60%. I'm sure if I ran it on another computer it would be less, but why bother with all that if it's not limiting it?

DirectWireless

Well my dishes are 5.3 - I only have 3 choices for freq. Yes it is a routed connection, AP / station. It's routed because not only was this purpose built for a single link, it provides dual redundant load balanced links. It is also a wireless "hub" that not only recieves and incoming inter...

DirectWireless

I did find a solution to this problem... I redirected the users to an IP / port on my IIS web server. I told IIS that the 404 error page was the same as the main page. This way no matter what URL they typed it would redirect to this page. I actually did this as an advertising method for my web hotsp...

DirectWireless

I changed out the dishes on my 1/4 mile link to 29dbi parabolic (2ft). Each end has 60 ft of LMR400. It's running on a 1.8 Celeron with MT 2.8.21, AR5213 cards, in 5ghz-turbo mode. THe goal for this connection was absolutely the fastest speed, with total reliability. This link is actually redundantl...

DirectWireless

Problem with multicasting software to clients is error correction. Multicasting is UDP, in addition to the fact that the wireless itself doesn't do error correction when multicasting. You could only multicast something like music or video. You could use *broadcasting* (you know, x.x.x.255) which sti...

DirectWireless

Well, I was looking over some web sites and I'm not the first person to do video over 802.11a. But what I'm trying to ultimately do is backhaul from one main site up to 100 TV channels to multiple sites using multiple PtMP links. I was thinking 15 channels each, 30 mbps max. I've done 30Mbps UDP dat...

DirectWireless

Okay, imagine I am broadcasting a 36Mbps UDP stream (54Mbps air rate), multicast PtMP. The client units are each recieving the whole stream and picking up whatever channel they're looking for via multicast address. What would happen if one of those clients were to have a bad signal, would it slow do...

DirectWireless

This isn't much distance-wise compared to everyone else but: 1/4 mile (.4 km): 45Mbps UDP / 29 Mbps TCP using 5ghz-turbo, no NStreme, WDS. CPU is P4 1.8 Celeron, 256MB RAM. I'm using AR5213 cards, with about 70 ft of LMR400 and 24dbi patch one side, 19dbi patch the other side. Signal at -76/-75. Tha...

DirectWireless

Most of my clients end up between -62 and -76 at the tower, and I have 2 connections within 500 ft of my tower gets a -55 and a -57... My worst one (between -76 and -84) is just a CB3 with the stock antenna in a 7th floor window pointing in the wrong direction (lucky bounce I think).

DirectWireless

Sure... /tool traffic-monitor add name="tmon1" interface=bridge1 traffic=transmitted trigger=above \ threshold=1000000 on-event=":log message=Traffic_Above_1Mbps" add name="tmon2" interface=bridge1 traffic=recieved trigger=above \ threshold=1000000 on-event=":log m...

DirectWireless

I figured this one out already: Create these firewall output rules ( sourced from the PING src address (your router, for example)): src=your router dst=gateway_2_IP out-interface=gateway1 action=deny protocol=icmp src=your router dst=gateway_1_IP out-interface=gateway2 action=deny protocol=icmp Do t...

DirectWireless

I'm not 100% sure if it's the issue yet but I went from 2.8.18 to 2.8.19 and using Winbox I noticed my router was reboot every few minutes. I am using Routerboards with it (the real thing)

DirectWireless

I have 2 radio links (5g-turbo) connecting 2 buildings together, 4 antennas in total. Both are Atheros mPCI cards. I'm currently using one link and until channel bonding becomes a reality it will be my limit for now. But I would like to be able to use a script to automatically activate the secondary...

DirectWireless

I was using a 5ghz link (Tranzeo) over a semi-salt water river about 1/2 mile wide and had polarization problems due to reflections. We had to use horizontal to make it work correctly. You may want to check on polarization over water issues if your link will be that far over water.

DirectWireless

I have a main Internet connection and a backup connection. My main connection is a T1 and my backup is a cable modem connection. I have maybe used the cable modem 3 times since I've had it. What I'd like to do is set my transparent web proxy to pull data over the cable modem during peak hours via eq...

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