Hi there,
I've just updated my 837 ADSL router to IOS 12.3(11)T3, which is supposed to enable a second Ethernet port (using the physical FastEthernet 4 port) for DMZ use.
I've successfully flashed the device, and followed the instructions:
Router(config)#interface fastethernet4
>Router(config-if)#no shutdown
>Router(config)#interface ethernet 2
>Router(config-if)#no shutdown
>Switch port 4 now connected to ethernet 2 interface.
But whenever I enter the "interface ethernet 2" line I get "invalid input detected" for the number 2.
Has anyone else had similar problems?
Cheers,
Q.