Multiple IPs on an interface

Unanswered Question
Feb 5th, 2008

Is there a way to add more than one IP on an interface for an ASA 5510 running V8.0(3) software?

I have this problem too.
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cisco24x7 Tue, 02/05/2008 - 13:25

No you can not do that on ASA/Pix devices,

to my knowledge

If you want to add "secondary" IP addresses

on a security device, go buy a Nokia appliance

running IPSO and it will let you add

secondary ip addresses just like Cisco IOS


CCIE Security

sivakondalarao Wed, 02/06/2008 - 01:55


shall I know your purpose to add more IP addresses to single interface.



robertgile1 Wed, 02/06/2008 - 07:15

The ASA was using another public IP in my netblock for testing purposes. I had a working Site to Site VPN connection and just wanted to add my current production IP to the interface, instead of trying to rebuild that VPN tunnel. I had to have a Cisco support person help me in config since the wizard didn't work at all.

husycisco Wed, 02/06/2008 - 07:23

Hi Robert

You can achieve what you want with the help of a Layer3 switch. If you have one, you can create subinterfaces on ASA, set trunk port on switch, create VLANs and tag them.


robertgile1 Wed, 02/06/2008 - 08:04

But that would require me to have IP addresses on seperate subnets. These public IPs are on the same subnet.

Plus I dont have an L3 switch...wish I did though!

Thanks for the replies guys. If anyone has any more suggestions, I am open.


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