After CentOS6.5, configure RIP 2.0, to open in the iptables (RIP) using 520, router won't be able to learn from each other, routing tables unless off iptables,

To add a rule to the iptables:
- A INPUT -p TCP -- dport 520 -j ACCEPT
Port 520 is RIP protocol using the port number,

CodePudding user response:

RIP USES port 520? To study the