From 8709ed652cae5f783936eb9bdc57185b4c55fdba Mon Sep 17 00:00:00 2001 From: Christoffer Date: Mon, 18 Sep 2017 20:16:02 +0200 Subject: [PATCH] Pointers for AD for cisco devices --- chapter/layer3.tex | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/chapter/layer3.tex b/chapter/layer3.tex index f02516f..0cb62a1 100644 --- a/chapter/layer3.tex +++ b/chapter/layer3.tex @@ -34,6 +34,14 @@ \label{cisco-default-administrative-distances} \end{table} +Always remember the following points for Cisco devices:\cite{Administ9:online} +\begin{itemize} + \item An administrative distance of 255 will cause the router to remove the route from the routing table and not use it. + \item Since IOS 12.2, the administrative distance of a static route with an exit interface is 1. Prior to the release of 12.2 it was in fact 0. + \item Only the interface itself has an administrative distance of 0, since a route cannot have a distance of less than 1. + \item Directly connected routes have an administrative distance of 0. +\end{itemize} + \newpage \section{OSPF}