Mikrotik

After enabling VLAN filtering on my MikroTik CRS310-8G+2S+ switch with an incorrect configuration, I lost all management access. The switch was unreachable via SSH, web UI, and ping. This post documents the recovery process using MAC-Telnet to regain access at Layer 2. The Problem The switch had VLAN filtering enabled with the uplink port (ether5, connected to OPNsense) configured as tagged for VLAN 1 when it should have been untagged. This meant: ...

Managing network devices via SSH typically involves remembering IP addresses, usernames, and sometimes non-standard ports. The SSH config file (~/.ssh/config) eliminates this overhead by defining named aliases with pre-configured connection parameters. The Problem Connecting to a MikroTik switch requires typing the full connection string each time: ssh [email protected] scp backup.rsc [email protected]:/ This becomes tedious with multiple network devices, each potentially having different usernames, ports, or key files. Solution Create an SSH config file with host aliases. ...