MikroTik

chronos

+1 for DNSSEC We use DNS on RouterOS as backup DNS server in geographically separated location. But one client using Turris router had weird problems with resolving domain names. Sometimes it worked and sometimes it doesn't. We found out that it was caused by DNSSEC or rather by not having that supp...

chronos

Also not working on 6.34.1 and 6.35. And we have two local ntp client -> ntp server proxies which both stopped to working. I don't know between which versions exactly. And we can't use SNTP as we need NTP server at the same time. I don't know how to solve this issue.

chronos

Another nice wifi signal calculation: http://en.jirous.com/calculation-wifi
Direct link to flash file: http://en.jirous.com/img/vypocet-wifi-en.swf

chronos

http://wiki.mikrotik.com/wiki/Supported_Hardware

chronos

What is purpose of release candidate if new features are introduced? This is usually called alpha or trunk branch. RC version should be branch created from trunk where only fixes are applied. And after some time if no more problems are discovered then it could be called as stable branch. So mikrotik...

chronos

Testing indoor on PtP link on v5.0rc1, both chains active, bridge mode, throughput is pretty good, stability seems to be much better than older nstream, latency is better but still pretty higher than to be expected from fast link without traffic. It is possible to further improve and lower latency? ...

chronos

PCI bus have theoretical shared throughput 33 MHz * 32bit = 1 Gbit which means gigabit half duplex. Then better to use some PCIe card with PCIe v1 250 MB/s or PCIe v2 500 MB/s per line. Then server with common gigabit ethernet could have integrated PCIe like RTL8111/8168B PCI Express Gigabit Etherne...

chronos

I would be good to rewrite this info to encyclopedic form to wiki. Maybe http://wiki.mikrotik.com/wiki/SolarTik

chronos

You have only 4177 V? What is this against 43859 V!!

It's not safe to touch to these devices under power...

chronos

Indoor test with good signal. Without nstream speed is up to 30-50 Mbit and link is stable. Max. link speed 270/270Mbit-HT. With nstream speed in UDP can go up to 200 Mbit on 300Mbit-HT link speed and TCP tested with iperf go up to 97 Mbit in one direction limited by 100 Mbit ethernet interface and ...

chronos

Did you try to upgrade to different versions like 4.0, 4.5 or 4.10?
Did you upgrade firmware on 3.29?

chronos

Maybe chosen NTP server is not pingable at all. Try different NTP server http://support.ntp.org/bin/view/Servers/WebHome You can try to install NTP package with NTP client different than preinstaled SNTP. What do you mean by static ip for console? Router should be simply reachable from local network...

chronos

I had a similar problem recently but it was caused by watchdog timer and used watch address which is by default configured to start exact 5 minutes after reboot

chronos

I am testing two RB411 now in bridge and can't get 200 Mbit UDP which I achieved about year ago with bridge with RB600A and RB433AH maybe at that time routeros 4.2. Current setting and condition: - indoor test - Two RB411 with R52N, routeros 4.9 - bridge, WDS, 5 GHz-n, hw. retries 3 - signal is good...

chronos

I have recently similar incident on my network and main router which is only RB433AH simply stop to respond as it was overloaded by SYN packet traffic. Attack was directed to one of hosted server inside network. So I did some investigation and realized that there is no way I can handle DoS attack wh...

chronos

1) look at VRRP But what about leases database? If one server fail than secondary server needs to know what address is assigned to what and when it expires? Maybe it could be done by some periodic synchronization by SSH from other server but DHCP servers should have some cluster support for automat...

chronos

http://wiki.mikrotik.com/wiki/Dual_Setup_with_OSPF
http://wiki.mikrotik.com/wiki/OSPF_to_s ... redundancy

chronos

Or using simple firewall filter rules per each IP and direction with action passthrough. http://wiki.mikrotik.com/wiki/Traffic-flow http://wiki.mikrotik.com/wiki/Use_SSH_to_execute_commands_%28DSA_key_login%29 Traffic-flow should get the most detailed informations usable for graphing too http://ensi...

chronos

Dia supports Windows as well http://dia-installer.de/index_en.html and is free & open source.

chronos

Just read specifications www.routerboard.com/pdf/R52n.pdf
Or more descriptive specification of simillar product http://www.unex.com.tw/sites/default/fi ... asheet.pdf

chronos

There is summarization of related topics from this forum:
http://wiki.mikrotik.com/wiki/DoS_attack_protection

Feel free to add your own know-how or modify wrong or incorrect content.

chronos

Maybe you can use firewall way http://wiki.mikrotik.com/wiki/Traffic-flow

chronos

I dont understand you question but basicly you can block or better allow certain clients by firewall rules identified either by IP address or MAC address. So there is a problem?

chronos

I am not expert so I can say only what I know or what I think I know... WDS http://www.mikrotik.com/testdocs/ros/3.0/interface/wireless_content.php#.11: + allow transparent communication between multiple ap on same channel with same essid and so allow to extend signal coverage - needed to enter MAC ...

chronos

Another way to transfer MAC in PtP link is EoIP tunnel. For example for base configuration: RB1 --------------------------------------------- RB2 wlan client ap-bridge wlan1 192.168.0.1 wlan1 192.168.0.2 ether1 10.0.0.1 ether1 10.0.0.2 You can create bridge1 and eoip1 interface on both sides. Then.....

chronos

$ character should be escaped with \ if used with ssh from command line.

http://wiki.mikrotik.com/wiki/Use_SSH_t ... key_login)

chronos

I have complex queues with many rows in router too. Currently I have about 650 records in it with queue tree used for per customer and per customer host fashion. But I do update this rules manually only sometimes. But it takes about 2 minutes to complete reload all settings through ssh form main ser...

chronos

Even there are some other projects which do something similar can it be done directly in routerboard? I have simple fetching PHP script already to get online state and I need simply add latency information to it. I have made my custom administration system using PHP and MySQL and I want to get laten...

chronos

As I need to store client and link latency information in time and draw it accross time I need to periodic ping program which can say host is up/down and last ping latency was xxx ms. Currently there is only online state checking by /tools netwarch and print terse can display status: 0 comment=host1...

chronos

Here is solution for you: http://wiki.mikrotik.com/wiki/OSPF_to_s ... redundancy

chronos

There is not only PHP API interface but direct SSH command execution from PHP too. Refer to wiki: http://wiki.mikrotik.com/wiki/Use_SSH_to_execute_commands_(DSA_key_login) and http://wiki.mikrotik.com/wiki/Traffic-flow Example command: [admin@mikrotik] /interface wireless registration-table> /interf...

chronos

There is solution to export statistic data too. It could be called "pseudo export" or "script based fake export". :put "/ip hotspot user";/ip hotspot user {:foreach i in=[find] do={:put ("add name=\"".[get $i name]."\" password=\"".[ge...

Search found 32 matches

Re: DNSSEC

Re: NTP client in NTP package not working

Re: Mikrotik link calculation source code...

Re: Mounting a server with RouterOS

Re: v5rc6 released

Re: New wireless protocol: Nv2 in v5.0beta5

Re: Gigabit PCI card recommendations?

Re: SolarTik

Re: RouterOS v4.10 released

Re: 802.11n

Re: Updaing OS in RB 750

Re: NTP problem and static route for console

Re: RB433AH + R52HN + ROS 4.9 issues

Re: 802.11n

Re: SYN flood DDoS? Or something else?

Re: DHCP server load balancing

Re: How the best way to merge 2 wireless conections ?

Re: Net/Traffic monitor

Re: Program to draw diagram

Re: please i want answer about r52n or r52hn?

DoS attack protection topic summarization wiki page

Re: Per IP accounting

Re: allow by mac address

Re: RouterOS not forwarding MAC addresses?

Re: RouterOS not forwarding MAC addresses?

Re: how to send the character $ , in ROS 3.x

Re: >1000 simple queues - how to update them all?

Re: Netwatch with latency?

Netwatch with latency?

Re: load balancing and fault tolerance

Re: API + PHP

Re: Export - import MT3.13 ?