Administrative Distance Table. You can adjust these values to force the router to prefer routes learned by. Administrative-Distance hereinafter AD is the value that determines a preference which route should be chosen if there are two or more routes which each has the same destination and different NextHop.
I came across a statement that surprised me - does the longest match rule trump administrative distance for the route that will be chosen to forward packets. Changing the administrative distance can be an effective way of resolving this kind of conflict. Route Source Default Distance Values Connected interface 0 Static route 1 Enhanced Interior Gateway Routing Protocol EIGRP summary route 5 External Border Gateway Protocol BGP 20 Internal EIGRP 90 IGRP 100 OSPF 110 Intermediate System-to-Intermediate System IS-IS 115 Routing Information.
When a Cisco router receives routing information from different protocols for the same destination network it will use the Routing Protocol that has a lower administrative distance.
Static route to an IP Address 1. You can adjust these values to force the router to prefer routes learned by. Administrative Distance is used to prefer one routing protocol over another when both report the same destination network. OK to explain my confusion better.
