Only one WAN interface "replies" to PING

Hi all :slight_smile:

I do have quite simple configuration.

CRS326 router - 2 x WAN interface + LAN.

When I ping WAN1 (that is set as DG) - the PING reply returns fine.
When I ping WAN2 - no reply.

When I use sniffer on CRS326 - I can see that ping request arrives at WAN2 - but ping reply is sent via WAN1 (and that is why it is not returned to the sender)

AFAIK the ping reply should be sent from the same interface that “hears” that request.

What do I wrong?

Please help,
A.

Mangle the inbound connection and route responses back according to the connection marks.

Check http://wiki.mikrotik.com/wiki/Manual:PCC, it shows what needs to be done. You can ignore the actual load balancing part if you don’t want that (rules with per-connection-classifier option).