topic Re: Cannot discover OSPF neighbor on PA in General Topics

Cannot discover OSPF neighbor on PA

net300 — Wed, 07 Jul 2021 08:35:41 GMT

Hi,

I faced a foundamental issue that my PA-VM cannot discover OSPF neighbor on Cisco vRouter. Cisco cannot discover PA either.

I use e1/2 on PA as the port to connect cisco vRouter, which is 192.168.150.1/24, and cisco router address is 192.168.150.2/24, area is 0.0.0.0 on PA and area 0 on cisco.

The cisco router can ping PA e1/2 successfully.

My configuration is really basic and simple, just configured a virtural router hung up with e1/2, and enable OSPF, area is 0.0.0.0, advertise 192.168.150.0/24. Nothing more, others are used default setting or not set.

My OSPF configuration on cisco router is okay, because I can establish adjacency between two cisco routers.

I browsed all the related configuration topic, cannot find where I should configure more. I know this is a basic and stupid issue but it stuck me for a long time. Please help.

Charlie B

Re: Cannot discover OSPF neighbor on PA

SebRupik — Wed, 07 Jul 2021 10:52:01 GMT

Hi there,

In your security policy is there a explicit deny above the built-in intra-zone policy?

Have you tried creating an explicit security policy for app type ospf? At this stage it can be pretty permissive and just specify source and destination zones, worrying about neighbour IP addresses can come later...

cheers,

Seb.

Re: Cannot discover OSPF neighbor on PA

OtakarKlier — Wed, 07 Jul 2021 14:58:26 GMT

Hello,

Also make sure that you cisco routers are on the same zone. 0.0.0.0 in Palo Alto is not 0 in Cisco, they should be identical.

Regards,

Re: Cannot discover OSPF neighbor on PA

ilic.slavisa — Wed, 16 Aug 2023 12:51:00 GMT

Hello, did you manage to solve this?

Re: Cannot discover OSPF neighbor on PA

JayGolf — Fri, 18 Aug 2023 04:25:04 GMT

Hi @ilic.slavisa ,

Are you having issues with setting up OSPF as well? Could you share your config details?