how to Bridge a Bridge connection without a wire

RouterOS General
1

Hi

I’ve got 2 bridges on my router, LAN and VPN, I want to connect them up, and filter all the rubbish out, to only allow certain traffic to allow

the only way I can do this is to plug in another router and operate it in transparent mode, but what a waste!

My router is always sending god knows what over the VPN to my NAS, its just rubbish traffic, I’m just interested in port 21,80,8291,1812,1813,1700

2

Instead of 2 bridges, add all ports to a single bridge, enable the use of ip-firewall in bridging and filter traffic in ip firewall by the use of the in-bridge-port and/or out-bridge-port rule matchers. This will let you control which traffic is accepted or dropped to each port. Alternately, leave the 2 separate bridges, and NAT between the two only that traffic which you want to allow.