Problem with creating a VLAN on 2800

[mvilla]

Good morning:

I have a problem to create a VLAN with a Cisco 2801.

I need to have base ports FastEthernet 0 / 0 and FastEthernet 0 / 1, in the same VLAN.

Basically I'm trying to switch access redundacion, now I have redundant switches in which I have the servers, but if one of these switches fails, and coincidentally is where I have connected the router, the server runs out of internet connection.

I idea is to connect the FastEthernet 0 / 0 to a switch, and FastEthernet 0 / 1, to the other switch.

but I managed to have these two ports in the same vlan, in order to have a unique IP for both FastEthernet ports.

As I can do this?. do is a lot of documents using the switchport command, but this command is not available in my router, I tried different IOS, and nothing.

Currently I have the following IOS: c2801-adventerprisek9-mz.124-24.T6.bin

thank you very much for your help.

[Reza Sharifi]

Hi Martin,

You can not put both interfaces in the same subnet.  These ports are routed ports and need to be in a separate IP segments.  The router does not support vlan, however it does support 802.1Q with sub-interfaces.

HTH

[acampbell · Accepted solution]

Hi,

You can use IRB & a BVI

!
bridge irb
!
!
bridge 111 protocol ieee
bridge 111 priority 65535
bridge 111 route ip
!
!
interface BVI111
description *** VOICE VLAN 111 ***
ip address 172.16.16.1 255.255.255.0
!
int g0/0
description *** TEST VGWAY PRIMARY CONNECTION TO SWITCH TEST-1-G1/0/2 ***
no ip address
bridge-group 111
!
!
int g0/1
description *** TEST VGWAY SECONDARY CONNECTION TO SWITCH TEST-1-G1/0/2 ***
no ip address
bridge-group 111
!

HTH

Alex

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