Interfaces FE on Cisco 2821 problem

Oct 03, 2005 25 Replies

not possible on the layer Ethernet switching module

not possible on the layer 2 Ethernet switching module that OP clearly has

Not sure whether his module is the same as mine. I have a 16-port Etherswitch module that plugs into my 2811 and it supports routed mode.

I see that Cisco has introduced a new feature that provides the functionality you described. Perhaps the OP needs an IOS upgrade to be able to use this functionality.

formatting link

Q=2E Can you configure a port on the EtherSwitch module as a routed port?

A=2E With the release of Cisco IOS=AE Software Releases 12.2(15)ZJ and

12.3(4)T, you can assign an IP address directly to ports of the EtherSwitch module. This feature makes those ports Layer 3 (L3) or routed ports. These ports cannot receive a DHCP address, and the ports do not support subinterfaces. L3 traffic on the routed ports still requires that the traffic utilize the platform routing engine. No L3 switching occurs on the blade. You can use all routing protocols in conjunction with this feature. This configuration serves as an example:

interface FastEthernet1/0 no switchport=20 ip address 172.16.1.0=20

255.255.0.0

Merv napisa?(a):

I have IOS 12.3(11)T3, but I can't do this. Why?

post the product code from the Ethernet switching module in your router

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required