827: No MAC address error

[MWM]

827: no ATM0 MAC address?
Please unconfuse--

Error: 6d11h: %IP-4-ZERO_ADDR: Zero MAC address for xxx.xxx.xxx.xxx [IP address of ATM0 port] in ARP cache

This says there is no associated MAC for the ATM0 static address. But MACs are hard-coded to ports(?). I realize some protocols (frame relay) require IP mapping to the port to assign the MAC. That does not seem to be a IOS option for the 827.

Show ARP cache gives inside Eth0 MAC address and also gives a MAC for the ISP gateway IP. But no entry for the ATM0 port itself.

Thanks

 

[routerhead]

If I'm correct, not all ports have a MAC address. When serial ports are not assigned a MAC, they use that of the Ethernet port(s) or Aui port as they are labelled.

 

[MWM]

Thank you for your reply. This little 827 router has just the two fixed ports, ADSL and Ethernet.

Regards