Mirroring ports on Mikrotik
Most Mikrotik routers have switch chips. On most models you can use the switch chip to mirror a port to another port on the same switch chip. On the RB1100AHx2 there are two Atheros 8327 switch chips. One is ports eth1-eth5 and the other is eth6-eth10. Mikrotik has a wiki page on what models have which switch chip, and what is supported . To mirror all eth1 to eth2 traffic from the CLI: [admin@Mikrotik] /interface ethernet switch> print Flags: I - invalid # NAME TYPE MIRROR-SOURCE MIRROR-TARGET SWITCH-ALL-PORTS 0 switch2 Atheros-8327 none none 1 switch1 Atheros-8327 none none [admin@Mikrotik] /interface ethernet switch> set mirror-source=ether1 mirror-target=ether2 0 [admin@Mikrotik] /interface ethernet switch> print Flags: I - invalid # NAME TYPE MIRROR-SOURCE MIRROR-TARGET SWITCH-ALL-PORTS 0 switch2