What's FIB and RIB table
315
Created On 04/28/23 23:07 PM - Last Modified 10/27/25 18:57 PM
Question
What's FIB and RIB table displayed in the routing.
Environment
- Palo Alto Firewalls
- Supported PAN-OS
- RIB (Routing Information Base)
- FIB (Forwarding Information Base)
Answer
- The RIB is the table of static routes the firewall is configured with and dynamic routes it has learned from routing protocols.
- The FIB is the forwarding table of routes the firewall uses for forwarding packets.
- The firewall selects an alternative static route to the same destination (based on the route with the lowest metric) from the RIB and places it in the FIB.