On page 232 of Doyle's Routing TCP/IP he states," Unlike RIP, which is accessed via UDP, the IGRP process is accessed directly from the IP layer as protocol 9." Can anyone explain "protocol 9"? I have tried a few books and CCO but can't seem to find an explaination of what it is.
Thanks for any assistance,
Kim O'Connor
Axient Communications
phone: 602-850-3124
fax: 602-850-4124
Pgr: 888-923-5681

