CSS Multiple IP Addresses to interface

[wilson_1234_2]

Can you have more than one IP Address on an interface?

If so, how do you configure this?

[Gilles Dufour]

circuit VLAN30

ip address 192.168.30.120 255.255.255.0

ip virtual-router 7 priority 110 preempt

ip redundant-interface 7 192.168.30.204

ip critical-service 7 upstream

ip address 192.168.31.120 255.255.255.0

[wilson_1234_2]

Thanks for the reply.

i am not sure I understand the config here,

The two IP Addresses of the interface 192.168.30.120

192.168.31.120

The rest (reference 7)is pointing to a redundant interface?

My situation is that I have the CSS ip Address in the DR subnet and I have my services and VIPs in the HQ subnet.

I have it working with two interfaces at the moment, but was wondering how to config it with a single interface.

I tried to set up trunking on a single interface, but could not get it to wotk with an old 2900 cat switch I have.

[skumar1969]

Just type your new ip address under the circuit VLAN. See below. It will accept the second ip address as well. I never used these sort of assignments in production deployments. I presume it would be similar to putting a secondary ip address on the router interface. Tell us how it works for you.

circuit VLAN790

description "client Segment"

ip address 192.168.196.134 255.255.255.192

ip address 193.168.196.134 255.255.255.192

thanks

[wilson_1234_2]

Thanks

[Gilles Dufour]

ok, so what you want actually is to configure trunking.

There is not much to do there, just use the command trunk [the CSS can only do dot1Q] and select the default vlan with the command 'default' inside your vlan.

once trunking will be working, you can configure an ip inside each vlan.

Gilles.