Probably you are having not having the appropriate IOS feature set. You need a min. of IP Plus feature set to support dot1q or isl vlan support. For an IP Plus feature set from 12.1(2) you will need, a min of 40 mb dram and 8 mb flash.
Have you tried FIRST issuing the command "encapsulation " to the sub-interface F0/0.1 BEFORE applying the IP address? I've ran into the same problem as you did. Also, issuing the command "encapsulation ..." will tell you straight away whether your IOS supports trunking or not.
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.