Community discussions

MikroTik App

Search found 31 matches

by chronos
Wed May 11, 2016 9:05 pm
Forum: General
Topic: NTP client in NTP package not working
Replies: 4
Views: 1411

Re: NTP client in NTP package not working

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.
by chronos
Thu Nov 17, 2011 12:26 am
Forum: Scripting
Topic: Mikrotik link calculation source code...
Replies: 14
Views: 5446

Re: Mikrotik link calculation source code...

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
by chronos
Sat Dec 25, 2010 9:40 pm
Forum: General
Topic: v5rc6 released
Replies: 107
Views: 20092

Re: v5rc6 released

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...
by chronos
Sat Sep 25, 2010 1:14 pm
Forum: General
Topic: New wireless protocol: Nv2 in v5.0beta5
Replies: 217
Views: 82783

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

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? ...
by chronos
Mon Aug 30, 2010 11:10 pm
Forum: General
Topic: Gigabit PCI card recommendations?
Replies: 1
Views: 694

Re: Gigabit PCI card recommendations?

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...
by chronos
Fri Jun 25, 2010 12:56 pm
Forum: RouterBOARD hardware
Topic: SolarTik
Replies: 71
Views: 18087

Re: SolarTik

I would be good to rewrite this info to encyclopedic form to wiki. Maybe http://wiki.mikrotik.com/wiki/SolarTik
by chronos
Thu Jun 24, 2010 9:51 pm
Forum: General
Topic: RouterOS v4.10 released
Replies: 63
Views: 15633

Re: RouterOS v4.10 released

You have only 4177 V? What is this against 43859 V!! :) It's not safe to touch to these devices under power... :)
by chronos
Mon Jun 21, 2010 7:51 am
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 304922

Re: 802.11n

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 ...
by chronos
Mon Jun 21, 2010 7:39 am
Forum: Beginner Basics
Topic: Updaing OS in RB 750
Replies: 11
Views: 4200

Re: Updaing OS in RB 750

Did you try to upgrade to different versions like 4.0, 4.5 or 4.10?
Did you upgrade firmware on 3.29?
by chronos
Mon Jun 14, 2010 10:15 pm
Forum: Beginner Basics
Topic: NTP problem and static route for console
Replies: 6
Views: 1960

Re: NTP problem and static route for console

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...
by chronos
Sat May 22, 2010 3:52 pm
Forum: Wireless Networking
Topic: RB433AH + R52HN + ROS 4.9 issues
Replies: 3
Views: 1157

Re: RB433AH + R52HN + ROS 4.9 issues

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 :)
by chronos
Sat May 22, 2010 1:31 pm
Forum: Wireless Networking
Topic: 802.11n
Replies: 939
Views: 304922

Re: 802.11n

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...
by chronos
Sun Apr 25, 2010 8:12 pm
Forum: General
Topic: SYN flood DDoS? Or something else?
Replies: 8
Views: 3622

Re: SYN flood DDoS? Or something else?

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...
by chronos
Sun Mar 07, 2010 11:10 pm
Forum: General
Topic: DHCP server load balancing
Replies: 4
Views: 1507

Re: DHCP server load balancing

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...
by chronos
Tue Mar 02, 2010 6:58 pm
Forum: General
Topic: Net/Traffic monitor
Replies: 2
Views: 5644

Re: Net/Traffic monitor

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...
by chronos
Sun Feb 28, 2010 9:46 pm
Forum: Wireless Networking
Topic: Program to draw diagram
Replies: 7
Views: 3349

Re: Program to draw diagram

Dia supports Windows as well http://dia-installer.de/index_en.html and is free & open source.
by chronos
Sun Feb 28, 2010 9:42 pm
Forum: RouterBOARD hardware
Topic: please i want answer about r52n or r52hn?
Replies: 5
Views: 1510

Re: please i want answer about r52n or r52hn?

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
by chronos
Sun Feb 28, 2010 5:55 pm
Forum: General
Topic: DoS attack protection topic summarization wiki page
Replies: 0
Views: 617

DoS attack protection topic summarization wiki page

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.
by chronos
Fri Nov 06, 2009 11:06 pm
Forum: General
Topic: Per IP accounting
Replies: 2
Views: 1206

Re: Per IP accounting

Maybe you can use firewall way http://wiki.mikrotik.com/wiki/Traffic-flow
by chronos
Wed Nov 04, 2009 8:58 pm
Forum: Beginner Basics
Topic: allow by mac address
Replies: 12
Views: 19314

Re: allow by mac address

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?
by chronos
Tue Nov 03, 2009 1:40 pm
Forum: Wireless Networking
Topic: RouterOS not forwarding MAC addresses?
Replies: 12
Views: 1775

Re: RouterOS not forwarding MAC addresses?

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 ...
by chronos
Tue Nov 03, 2009 8:14 am
Forum: Wireless Networking
Topic: RouterOS not forwarding MAC addresses?
Replies: 12
Views: 1775

Re: RouterOS not forwarding MAC addresses?

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.....
by chronos
Thu Jun 18, 2009 12:30 pm
Forum: General
Topic: how to send the character $ , in ROS 3.x
Replies: 3
Views: 699

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

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

http://wiki.mikrotik.com/wiki/Use_SSH_t ... key_login)
by chronos
Wed May 20, 2009 10:29 am
Forum: General
Topic: >1000 simple queues - how to update them all?
Replies: 7
Views: 4329

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

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...
by chronos
Tue Apr 28, 2009 11:10 pm
Forum: Scripting
Topic: Netwatch with latency?
Replies: 3
Views: 1349

Re: Netwatch with latency?

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...
by chronos
Tue Apr 28, 2009 9:11 am
Forum: Scripting
Topic: Netwatch with latency?
Replies: 3
Views: 1349

Netwatch with latency?

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...
by chronos
Wed Dec 10, 2008 9:21 pm
Forum: Scripting
Topic: API + PHP
Replies: 3
Views: 4394

Re: API + PHP

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...
by chronos
Wed Aug 27, 2008 11:20 pm
Forum: General
Topic: Export - import MT3.13 ?
Replies: 6
Views: 1472

Re: Export - import MT3.13 ?

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=\"".[get $i password]."\" profile=".[get $i profile]." bytes-in=".[get $...