https://live.paloaltonetworks.com/t5/next-generation-firewall/bfd-between-virtual-routers/m-p/1234646#M6120 <P>For anyone wondering we tested this in our LAB and found that BFD does not want to work between VRs when using&nbsp; Loopback Interfaces due to&nbsp; /32 limitation.</P> <P>Works fine on other interfaces.</P> <P>&nbsp;</P> <P>Cheers</P> Thu, 24 Jul 2025 14:50:05 GMT DewaldVos 2025-07-24T14:50:05Z https://live.paloaltonetworks.com/t5/next-generation-firewall/bfd-between-virtual-routers/m-p/1234367#M6104 <P>Dear Community,</P> <P>&nbsp;</P> <P>I'm sure this is a loaded question without any actual configuration data. But I was wondering are there any Limitation for BFD between two Virtual routers on the same firewall. We had a query from a customer stating that BFD looks like it does not want to work between 2 Virtual routers. From what I can gather, they are using BGP with Loopback interface but the BFD sessions are not establishing. Im sure there might be a config issue somewhere but just looking to see if we can rule out any limitations first. In my mind it should not be an issue but you never know. It's a PA1410...</P> Mon, 21 Jul 2025 15:04:38 GMT https://live.paloaltonetworks.com/t5/next-generation-firewall/bfd-between-virtual-routers/m-p/1234367#M6104 DewaldVos 2025-07-21T15:04:38Z https://live.paloaltonetworks.com/t5/next-generation-firewall/bfd-between-virtual-routers/m-p/1234646#M6120 <P>For anyone wondering we tested this in our LAB and found that BFD does not want to work between VRs when using&nbsp; Loopback Interfaces due to&nbsp; /32 limitation.</P> <P>Works fine on other interfaces.</P> <P>&nbsp;</P> <P>Cheers</P> Thu, 24 Jul 2025 14:50:05 GMT https://live.paloaltonetworks.com/t5/next-generation-firewall/bfd-between-virtual-routers/m-p/1234646#M6120 DewaldVos 2025-07-24T14:50:05Z