Bridge->NAT

RouterOS General
1

what NAT does under bridge menu?

Can we translate the mac-add from one to another, like IP->NAT does for ip-address?

if yes, can anyone give an e.g.

2

@ nichky

https://wiki.mikrotik.com/wiki/Manual:Interface/Bridge

nat - bridge network address translation provides ways for changing source/destination MAC addresses of the packets traversing a bridge. Has two built-in chains:

  • srcnat - used for “hiding” a host or a network behind a different MAC address. This chain is applied to the packets leaving the router through a bridged interface
  • dstnat - used for redirecting some packets to other destinations
3

do u have any work case?

4

do you mean bridge nat as mac address proxy?

as my experience concerned, i could barely meet or need one - both in data center and sp environment.

let’s say i preferred to avoid another unnecessary layer 2 headache since it’s really difficult to predict its (l2) behavior, and mac address doesn’t passed any router :wink: