OSPF

[arun.patro]

Hi Friends..

Just for my information: I am forgetting the port on which OSPF works, I think it works on some UDP port, but I am not able to recall it. Can someone pls help me remind this..

Thanks!!

Arun

[Jon Marshall · Accepted solution]

arun.patro wrote:
Hi Friends..
Just for my information: I am forgetting the port on which OSPF works, I think it works on some UDP port, but I am not able to recall it. Can someone pls help me remind this..
Thanks!!
Arun

Arun

OSPF is a protocol at the IP layer so it's not TCP or UDP. It is protocol number 89.

Jon

[Giuseppe Larosa · Accepted solution]

Hello Arun,

OSPF does not use UDP but IP protocol 89

in an extended ACL you can use a line like permit  ospf any any just to make an example

Hope to help

Giuseppe