Two IP address from same subnet on an 1 Aggregated Interface

Aithal — Tue, 16 Feb 2021 19:30:40 GMT

Hello All,

I am pretty new to Palo Alto, wanted to check if the an aggregated port in PA can be assigned with 2 IP addresses from same subnet, say 1.1.1.2/29 and 1.1.1.4/29. The Idea is the ethernet interfaces 1 & 2 that are be bonded to ae will be connected to the two core switches (port 1 to switch 1 and port 2 to switch 2). After configuring the AE, I wanted to build a BGP relationship between PA and switches using the two AE IPs.

Would this be possible?

Re: Two IP address from same subnet on an 1 Aggregated Interface

BPry — Wed, 17 Feb 2021 04:26:03 GMT

@Aithal,

You can only have a single IP address assigned to any given interface (an AE is logically one interface) or sub interface. I guess if you wanted to you could configure two sub interfaces on your AE interface and setup BGP peering on both links, but I struggle to see the advantage of doing so.

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Two IP address from same subnet on an 1 Aggregated Interface

Re: Two IP address from same subnet on an 1 Aggregated Interface