i have a routerboard running 2.8.26. it has a 4-port ethernet pci card installed. I have 2 interfaces that are connected to the rest of the network, each with their own IP address. both are pingable from a server running MRTG. I cannot get SNMP response from *only* one ip address, the other works fine.
This is duplicated on 2 other routerboards. both exhibit the same behavior.