Possibility of an IP in a physical interface and a subinterface ip in the same interface?

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
Announcements

Possibility of an IP in a physical interface and a subinterface ip in the same interface?

L2 Linker

Hi all,

I need to reassure me on a simple configuration.

Is it possible to do this configuration?

IP interface 1: a.a.a.a / x
IP interface 1.10: a.a.10.a / x
IP interface 1.20: a.a.20.a / x


I ask this because I've seen a few configurations and whenever subinterfaces were used, there was no IP on the physical interface.


Thank you in advance for your return.Smiley Wink

2 REPLIES 2

L5 Sessionator

Hello, will the three example addresses you have specified need to be within the same subnet or three unique subnets?

It is not possible to have multiple layer 3 interfaces belonging to the same subnet within a single virtual router.

I was able to commit the following configuration example on a PA-200 without issue.

subinterfaces.PNG

(disclaimer: I have not tested passing traffic with a corresponding trunked switch port connected to physical interface ethernet1/4)

Thank you for your help.

  • 1974 Views
  • 2 replies
  • 0 Likes
Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!