Community discussions

MUM Europe 2020

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by mikko
Fri Oct 20, 2017 11:48 pm
Forum: General
Topic: Traffic on disabled interface
Replies: 1
Views: 416

Re: Traffic on disabled interface

I have seen this kind of behavior that shows traffic in disabled port with broken switch chip. Chip was broken by over-voltage caused by thunder.
by mikko
Fri Jul 10, 2015 2:08 pm
Forum: Announcements
Topic: 6.30 released
Replies: 180
Views: 44056

Re: 6.30 released

LTE interface number changes in update. I have many Baseboxes with Sierra MC7710 LTE card in remote locations. During update LTE1 interface changes to LTE2 interface. This breaks up DHCP client and firewall rules that are still trying to use LTE1 interface after update. This prevents updating remot...
by mikko
Thu Jul 09, 2015 2:23 pm
Forum: Announcements
Topic: 6.30 released
Replies: 180
Views: 44056

Re: 6.30 released

LTE interface number changes in update. I have many Baseboxes with Sierra MC7710 LTE card in remote locations. During update LTE1 interface changes to LTE2 interface. This breaks up DHCP client and firewall rules that are still trying to use LTE1 interface after update. This prevents updating remote...
by mikko
Thu Jun 19, 2014 5:49 pm
Forum: RouterBOARD hardware
Topic: RB 912UAG-5HPnD and MC7710
Replies: 3
Views: 1526

Re: RB 912UAG-5HPnD and MC7710

It won't show up under pci-devices. Sierra card is usb-device and it will shou under usb. [admin@MikroTik] > /system resource usb print # DEVICE VENDOR NAME SPEED 0 1:1 Linux 3.3.5 ehci_hcd RB400 EHCI 480 Mbps 1 1:2 Sierra Wireless, Incor... MC7710 480 Mbps But first you have to change routerboard u...
by mikko
Tue Feb 19, 2013 9:24 pm
Forum: Wireless Networking
Topic: Trunk with two SXT is possbile?
Replies: 4
Views: 1241

Re: Trunk with two SXT is possbile?

Default l2mtu (about 1520 depending board) is enough to bridge standard packets with vlan headers. You don't need to create vlan interfaces, but it could be handy to create one vlan interface connected to bridge for administration if your link do not accept untagged packets. This works good if you d...
by mikko
Tue Feb 19, 2013 9:06 pm
Forum: RouterBOARD hardware
Topic: RB260GS
Replies: 23
Views: 8763

Re: RB260GS

does RB260GS will have IGMP support? MikroTik product page don't mention anything about IGMP or Spanning Tree support. But if you see Atheros chip details there should be IGMP and Spanning Tree support in switch chip. http://www.qca.qualcomm.com/technology/technology.php?nav1=48&product=102 I just ...
by mikko
Thu Aug 30, 2012 1:29 pm
Forum: RouterBOARD hardware
Topic: Spectrum Noise on RB751U-2HnD
Replies: 36
Views: 6056

Re: Spectrum Noise on RB751U-2HnD

It could be some analog link too. I have seen analog wireless security cameras using 2.4 GHz in some sites. This blocks all wlan communication in channels affected.

Attachment shows analog security camera in about ch1 blocking about half of 2.4 GHz wlan channels. Then it was turned off.
by mikko
Wed Jun 06, 2012 8:32 pm
Forum: Beginner Basics
Topic: Mikrotik 750 GL reset button not want to working
Replies: 2
Views: 2789

Re: Mikrotik 750 GL reset button not want to working

Front panel reset button has two functions depending how long it is pushed. See userguide http://routerboard.com/pdf/355/rb750gl-ug.pdf RouterBOOT reset button (RES, front panel) has two functions: Hold this button during boot time until LED light starts flashing, release the button to reset RouterO...
by mikko
Mon Jun 04, 2012 8:56 pm
Forum: RouterBOARD hardware
Topic: RB751G-2HnD wirelless performance
Replies: 9
Views: 3405

Re: RB751G-2HnD wirelless performance

What kind client do you have? I dont have that board, but others with 52n cards. I have seen bad wireless performance with old broadcom G chipsets if preamble if set both or short. With long preamble my laptops with old broadcom radios work ok. And run spectrum scan in dude. I have had problems with...
by mikko
Wed May 30, 2012 3:23 pm
Forum: Beginner Basics
Topic: can i use jquery for customizing my hotspot pages?
Replies: 2
Views: 1322

Re: can i use jquery for customizing my hotspot pages?

Yes, it's possible to use jQuery and any other browser based things.

You can put any static files (jquery.js in this case) into hotspot directory in router. Or allow them to be loaded from internet using walled garden.
by mikko
Fri May 18, 2012 1:09 am
Forum: RouterBOARD hardware
Topic: Advice for professional adsl modem ethernet
Replies: 14
Views: 5034

Re: Advice for professional adsl modem ethernet

I would say that most of adsl modems work good in bridge mode. As long as you do natting etc in good router like Mikrotik :) Many adsl modems have weak processor and low memory, so they will come a bottleneck if trying to do nat etc. in them. I have installed few cheap Tp-link adsl modems (8840T in ...
by mikko
Thu Apr 12, 2012 1:28 am
Forum: General
Topic: www.mikrotik.com IPv6 connectivity broken?
Replies: 5
Views: 1976

Re: www.mikrotik.com IPv6 connectivity broken?

Broken with HE tunnel too traceroute6 forum.mikrotik.com traceroute to forum.mikrotik.com (2a02:610:7501:1000::201) from 2001:470:28:ce2:20e:cff:fe70:f089, 30 hops max, 16 byte packets 1 2001:470:28:ce2:: (2001:470:28:ce2::) 4.952 ms 0.397 ms 0.214 ms 2 ml-2.tunnel.tserv24.sto1.ipv6.he.net (2001:470...
by mikko
Wed Nov 30, 2011 10:27 pm
Forum: RouterBOARD hardware
Topic: Routerboard 450G goes on and then nothing
Replies: 3
Views: 1004

Re: Routerboard 450G goes on and then nothing

Try to re-install RouterOS using netinstall.

http://wiki.mikrotik.com/wiki/Manual:Netinstall
by mikko
Wed Nov 30, 2011 6:32 pm
Forum: General
Topic: RouterOS v5.9 released
Replies: 166
Views: 43060

Re: RouterOS v5.9 released

can you all please test the "Latvia" download mirror? What speeds to you get in your country (name it). Is it higher than ususal?
Finland, about 80 Mbps. Lightning fast compared to old mirror.
by mikko
Tue May 10, 2011 1:57 am
Forum: Beginner Basics
Topic: Help to RB411U with Sierra Wireless MC8790
Replies: 29
Views: 16740

Re: Help to RB411U with Sierra Wireless MC8790

pin-status: "waiting for network personalization PIN" It is waiting some PIN code. Have you tried to disable sim-card pin using a normal phone just to be sure it is not causing problem? But I think your Sierra card could be operator locked. So it will work only with that operator card whos network ...
by mikko
Mon May 09, 2011 8:34 pm
Forum: RouterBOARD hardware
Topic: RouterBoard 411U Supported 3G USB Devices
Replies: 27
Views: 11469

Re: RouterBoard 411U Supported 3G USB Devices

You can see how many channels device supports and try which channels support AT commands. /port print /system serial-terminal usb2 channel=x (channels are numbered from 0 to number of channels reported port print minus one) After opening serial terminal type AT and press enter. Those channels that s...
by mikko
Fri May 06, 2011 7:36 pm
Forum: RouterBOARD hardware
Topic: RouterBoard 411U Supported 3G USB Devices
Replies: 27
Views: 11469

Re: RouterBoard 411U Supported 3G USB Devices

I just got Sierra Wireless MC8792 card and it seems to work (tested with RB411U and ROS 5.2). Now I have to consider what antenna I will use. Do anyone have a good antenna recommendations for indoor and outdoor use? Must support 900 and 2100 MHz bands. For quick indoor test I used Mikrotik swivel an...
by mikko
Tue Apr 12, 2011 2:28 am
Forum: Beginner Basics
Topic: IPv6 packages do not pass the router
Replies: 13
Views: 3589

Re: IPv6 packages does not pass the router

You have to set ipv6 address to your lan interface too. Now you have only set ipv6 address to tunnel interface. You can find your Hurricane Electric routed prefix on their site. That is the address space that you can use in your lan. They have example config for Mikrotik available too! But it do not...
by mikko
Wed Mar 30, 2011 11:06 pm
Forum: RouterBOARD hardware
Topic: RouterBoard 411U Supported 3G USB Devices
Replies: 27
Views: 11469

Re: RouterBoard 411U Supported 3G USB Devices

That USB power reset feature is only in latest models, SXT for now I think. I have been thinking try to make some self made usb power reset implementation. Basically it should be easy by few electronic components and short usb extension cable (parts costing few euros). And by using userled as trigge...
by mikko
Wed Mar 30, 2011 9:53 pm
Forum: RouterBOARD hardware
Topic: Invalid microSD on RB450G
Replies: 9
Views: 4186

Re: Invalid microSD on RB450G

Try with latest RouterOS versions. I noticed that something has changed to RouterOS 5.0RCs, since my 433AH now identified and formatted one sandisk card that not worked with some 4.x version when tested long time ago. But I don't see much usage for it, because it is quite slow reading and writing ca...
by mikko
Tue Mar 29, 2011 3:27 pm
Forum: RouterBOARD hardware
Topic: 411u - can't communicate with winbox
Replies: 13
Views: 1743

Re: 411u - can't communicate with winbox

It's ok. Normally it is enabled like yours.

But if it is manually set to disabled then it could cause problems if not set correctly in both sides of link.

Did you try other cable? Sometimes problem could be bad or broken cable.

After that it is more and more likely faulty ethernet chip.
by mikko
Tue Mar 29, 2011 12:38 am
Forum: RouterBOARD hardware
Topic: RouterBoard 411U Supported 3G USB Devices
Replies: 27
Views: 11469

Re: RouterBoard 411U Supported 3G USB Devices

I have now done some testing with Nokia CS-17 usb modem, since I wanted to test some other brand than Huawei stick. Support for this Nokia stick is probably coming to ROS 5.0. Thanks to Mikrotik for adding it! (If someone interested datachannel=2 and infochannel=4) Sadly I have to report that CS-17 ...
by mikko
Tue Mar 29, 2011 12:17 am
Forum: RouterBOARD hardware
Topic: 411u - can't communicate with winbox
Replies: 13
Views: 1743

Re: 411u - can't communicate with winbox

You have to connect ethernet cable and have ethernet link up running (link led on) to blink command able to blink. Your interface print shows that ethernet is not running, so it can't blink. Are you disabled auto-negoation on ethernet interface? That could cause problems. /interface ethernet print d...
by mikko
Wed Mar 16, 2011 3:04 pm
Forum: General
Topic: 411U + 3G + 60MPH Tips for best stable connection.
Replies: 5
Views: 1699

Re: 411U + 3G + 60MPH Tips for best stable connection.

I have used 411U in car with 12 volt system, powered from cigarette lighter connector. Sometimes starting car causes such big drop in voltage that board will boot. Maybe I should get new battery to car. Otherwise I don't have had problems using it in car. What comes to 3G, I have only tested with un...
by mikko
Tue Mar 15, 2011 11:53 pm
Forum: General
Topic: [SOLVED] RB450G dhcp server not oferring leases
Replies: 19
Views: 4856

Re: RB450G dhcp server not oferring leases

By my testing it just do not respond if there is no address to give. If client tries to renew some old address and server has some new address to give it should first send NAK response to client to tell that old address is not valid anynome. And then client should request new address and server repl...
by mikko
Tue Mar 15, 2011 11:04 pm
Forum: RouterBOARD hardware
Topic: RouterBoard 411U Supported 3G USB Devices
Replies: 27
Views: 11469

Re: RouterBoard 411U Supported 3G USB Devices

Thanks ghiooo but those old models are not good for me. I also found those old models cheaply in ebay. In Finland we have 2100 MHz and 900 MHz 3G networks in use. 2100 MHz is used only in cities and 900 MHz in other areas. From Sierra Wireless 3G modules I would be needing quite new model that suppo...
by mikko
Fri Mar 11, 2011 10:41 pm
Forum: RouterBOARD hardware
Topic: RouterBoard 411U Supported 3G USB Devices
Replies: 27
Views: 11469

Re: RouterBoard 411U Supported 3G USB Devices

RB411UARH

You can reset the power on the USB port aswell.
Just remembering that RB411UAHR would need external power for usb and STX is first board that implements power reset feature. Or have I missed some hw changes somewhere?

I think that good modem should not need that kind of trick to work.
by mikko
Fri Mar 11, 2011 2:12 am
Forum: RouterBOARD hardware
Topic: RouterBoard 411U Supported 3G USB Devices
Replies: 27
Views: 11469

Re: RouterBoard 411U Supported 3G USB Devices

Thanks for Sierra Wireless tip. I have been thinking what 3G modem to get for more serious need that I have with one oncoming project. You may have read my postings about Huawei E160E and yes, it is too unreliable for serious use. But works for me for occasional manual backup connection in my home o...
by mikko
Wed Mar 09, 2011 4:50 pm
Forum: General
Topic: Help.. RB450G make my NET connection very slow.
Replies: 2
Views: 1074

Re: Help.. RB450G make my NET connection very slow.

Have you tried to look what amount of traffic and connections are going when connection slows down? That would get some clue what is happening. Since your hotspot is working some time I suspect that problem is not in it. If you are using some non-symmetrical (asdl for example) connection it could be...
by mikko
Wed Mar 09, 2011 7:48 am
Forum: RouterBOARD hardware
Topic: Power up routerboard (rb433) with usb port?
Replies: 2
Views: 723

Re: Power up routerboard (rb433) with usb port?

There is no way to power rb from usb port. Usb port is giving 5V and max 500mA so about 2,5 watts. RB433 require minimum 10 volts and 4 watts without wireless cards and much more watts with wireless cards. So even making some dc to dc converter, usb would not supply enough power. You can get 12V fro...
by mikko
Tue Mar 08, 2011 9:51 pm
Forum: General
Topic: [SOLVED] RB450G dhcp server not oferring leases
Replies: 19
Views: 4856

Re: RB450G dhcp server not oferring leases

Just tried with static only addresses and windows xp gets address without problems. And don't get address if there is no entry in leases table. I see that it is working as it should. I am using RB750G and 5.0RC11. Windows XP was home edition with SP3.
by mikko
Tue Mar 08, 2011 1:04 am
Forum: General
Topic: MAC Winbox not working with bridged ports
Replies: 2
Views: 976

Re: MAC Winbox not working with bridged ports

Seems that MAC Server documented default value all is disabled by default in 5.0RC11 and only some interfaces are enabled. I tested with RB750G. But you can change what interfaces mac server listenes. http://wiki.mikrotik.com/wiki/MAC_access Or this could be undocumented default security enhancement...
by mikko
Mon Mar 07, 2011 6:22 pm
Forum: General
Topic: Mikrotik IPv6 addresses
Replies: 33
Views: 3217

Re: Mikrotik IPv6 addresses

Working with RFC3068 6to4 tunnel >tracert6 forum.mikrotik.com Tracing route to forum.mikrotik.com [2a02:610:7501:1000::201] from 2002:5394:edf3:1:712f:13c6:319:39a7 over a maximum of 30 hops: 1 9 ms <1 ms <1 ms 2002:5394:edf3:1::1 2 8 ms 8 ms 7 ms 2002:c058:6301::1741 3 7 ms 7 ms 8 ms csc6-g1170-hex...
by mikko
Mon Mar 07, 2011 2:53 pm
Forum: General
Topic: [SOLVED] RB450G dhcp server not oferring leases
Replies: 19
Views: 4856

Re: RB450G dhcp server not oferring leases

Just add address-pool to your dhcp server.

http://wiki.mikrotik.com/wiki/Manual:IP/DHCP_Server
by mikko
Mon Mar 07, 2011 1:45 pm
Forum: Beginner Basics
Topic: Help with RB411U - Touble shooting USB Modem connection?
Replies: 4
Views: 839

Re: Help with RB411U - Touble shooting USB Modem connection?

I have had similar connection problems with a Huawei E160E usb modem. But it has done the same with windows too, so I think that is not necessarily only routeros issue. I recommend to check if there are firmware updates to your modem. My e160e has worked much better after I updated modem firmware to...
by mikko
Sun Mar 06, 2011 10:19 pm
Forum: General
Topic: 750G no contact after upgrade 5.0rc9 to 5.0rc10. Help
Replies: 15
Views: 3821

Re: 750G no contact after upgrade 5.0rc9 to 5.0rc10. Help

I tried netinstall 4.17 holding the reset button and releasing. It never popped up. I tried the same with winbox. Nothing. thanks for your attempt. I'm still holding hope that there will be a way to connect with the router. It won't even work as a switch. It's a brick. Did you have static ip addres...
by mikko
Sun Mar 06, 2011 1:34 am
Forum: RouterBOARD hardware
Topic: RB411U and 3G USB modem
Replies: 5
Views: 1739

Re: RB411U and 3G USB modem

i had 411u connected with a huawei e220. worked fine for 3 days, than went offline. i tried the v5rc10, still nothing, i can't get it to work. it stays on "reseting link" (probably meaning "reseTTing link"). but because worked fine for 3 days, i did the mistake to buy 3 more 411u routerboards. now ...