I will recommend if you want to have subnet level of summarization then disable "auto summary" and then configure 'ip summary-address eigrp' because auto summary will summarize to network level and auto summary always supersedes the manual summary routes.
Also when you configure summarization remember to check for null route to prevent routing loop.
In new IOS codes static routes pointing to null interfaces are automatically generated for summary routes but still check it and if it is not available create one static route pointing to null interface.
Also for summary routes EIGRP assigne dthe admin distance as 5.
Yes, you can run auto-summary with manuall summarization--the two will not interfere with each other. Normally, we tell people to turn auto-summarization off, but if your network is really designed with multiple class b's or class a's so that auto-summarization really works, then feel free to use it. Most of the time, auto-summarization doesn't catch externals (routes redistributed into EIGRP), so we would normally see auto-summarization used for the internal routes (when we see auto-summarization used at all), and manual summarization used for external routes.
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...