Ip protocol has an optional feature called source-routing. Using this feature you can ensure that an IP datagram will pass through certain interfaces en route to destination and this functionality is obtained with some IP options fields in IP header. (You can try loose or strict source routing using extended ping command). Handling of IP datagrams with source-routing option is determined on per interface basis using "ip source-route" command. This is enabled by default and generally manually disabled because source-routing creates some open doors for some kind of attacks. If you issue "no ip source-route" under an interface, IP datagrams inbound this interface with source-routing option are discarded.
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...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.