Tag: mikrotik

Fixing Website Access Issues with Mikrotik MSS Clamping

17/10/2024 / Internet, IT, Networking

If you’re having trouble accessing certain websites—like partial page loads or dropped connections—your network’s Maximum Segment Size (MSS) may be the issue. This is common when the MTU (Maximum Transmission Unit) is mismatched across the network, causing packet fragmentation or loss. The problem is mostly on some “really” safe websites like banks, government, etc. The […]

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Zabbix – how to monitor clients on Mikrotik Capsman

29/07/2024 / IT, Networking, Tutorials, Zabbix

Hello, I want to share my solution for monitoring connected clients to CapMan interfaces on Mikrotik in the Zabbix monitoring system. First, for the Zabbix server part, to get data from Mikrotik Capsman we will use the Python script to communicate with Mikrotik API. The Zabbix server needs access to the Mikrotik API, so if

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Mikrotik – failover script with link quality check

26/01/2023 / IT, Networking, Programming

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Mikrotik – DHCP Options – TFTP server

01/12/2022 / IT, Networking, Tutorials

Sometimes you need to push the TFTP server value as part of the DHCP process, for example, this is used in most VoIP systems. The VoIP phone use the TFTP server to download configuration files. Here I will show you how to set this value in the Mikrotik DHCP server. 1. Boring stuff The boring

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Unable connect Windows 10 to Mikrotik L2TP/IPsec behind NAT – Solved

04/08/2020 / IT, Networking, Windows

Open regedit (Windows + R -> regedit -> enter) find key : Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PolicyAgent. Create new DWORD value with name : AssumeUDPEncapsulationContextOnSendRule and value 2 Restart PC and enjoy the L2TP/IPsec without problems.

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Mikrotik P2P mangle rule – SOLVED

06/06/2018 / IT, Networking

Its long time ago but MikroTik removed P2P matcher from mangle rule, so now you have to use L7 analyze to mangle this traffic. Here is code to paste to the terminal: /ip firewall layer7-protocol add name=P2Pmatch regexp=”^(\\x13bittorrent protocol|azver\\x01\$|get /scrape\\\ \?info_hash=get /announce\\\?info_hash=|get /client/bitcomet/|GET /data\\\?f\ id=)|d1:ad2:id20:|\\x08’7P\\)[RP]” /ip firewall mangle add action=mark-connection chain=prerouting layer7-protocol=P2Pmatch \ new-connection-mark=P2Pconnection passthrough=yes

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Mikrotik CAPsMAN config cheatsheet

22/08/2017 / IT, Networking

Best order to create CAPsMAN Manager station Channels Datapaths Security Configuration Provisioning Interface->Manager->Enable Client station Wireless->Interface->CAP

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Mikrotik – Remove fasttrack forward rule

29/03/2017 / IT, Networking

Hi, first of all fasttrack is awesome thing.In short, it enable to skip whole routing and filtering process for established connections for ultimate increase passtrough ability. More info at mikrotik wiki. Here I will show you stupit thing what I was solve for about half a hour 🙂 If you for some reason need disable

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