How many maximun no of subnets can be configured under same interface ?


ATTENTION Customers, All Partners and Employees: The Customer Support Portal (CSP) will be undergoing maintenance and unavailable on Saturday, November 7, 2020, from 11 am to 11 pm PST. Please read our blog for more information.

L0 Member

How many maximun no of subnets can be configured under same interface ?

Hi Friends,


I would like to know , How may maximum no of subnets can be configured under same Vlan/ interface.


Up to three i know, its working, See below config


ethernet1/2.100    vr:PRD-VR                    


 I want to know maximum no subnets supporetd on PAN FW. (Exclude broadcast issue for now).





Community Team Member



This depends on the hardware platform.

You can find the system limits with the following CLI command :


@PA-VM> show system state filter cfg.general.max*

Cheers !


L2 Linker

Hi Abkumar,


If you refer to the number max of secondary IPs on a same interface, it should be 255 IPv4 addresses.



L1 Bithead

Its Hardware capacity dependency .

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 Live Community as a whole!

The Live Community thanks you for your participation!