Routing and ACL

[jonk34567]

if i want to apply ACL in a network where routing in occuring should i provide 

#access-list 100 permit eigrp any any

#access-list 100 permit ospf any any

#access-list 100 permit rip any any

[Karsten Iwen · Accepted solution]

As always: It depends ...

• On the router sending the updates: Nothing to allow here even if an outgoing ACL is applied to an interface as traffic initiated by the router is never filtered by an ACL.
• On the router receiving the updates: If there is an incoming ACL applied to the interface, the routing-protocol in use has to be allowed.