Routing protocol databse exchange protocol and port

[morialpesh008]

Hi,

    Recently i have faced one question that what/which protocol or port used by all routing protocol? for their database exchange,

 i know that BGP is use TCP port 179 but not about IGP(RIP2/EIGRP/OSPF)

is iBGP and eBGP both use same port?

Thanks.

[Georg Pauwen]

Hello,

iBGP and eBGP both use UDP/TCP port 179.

OSPF does not use UDP or TCP, but is encapsulated directly in IP protocol 89. The same for EIGRP, it uses IP protocol 88.

RIP (als v2) uses UDP port 520.

Here is a link to a list with all IANA assigned IP port numbers:

http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml