""Now I'm not sure what happens. It applies the filter to Vlans 10-20 and does this mean it will only allow traffic that matches the ACL both in and out of the Vlans or just in or just out.""
Vlan map has no direction (input or output). In your case whatever traffic matches the ACL named dog in vlans 10-20 would be forwarded. If you want to filter traffic in a specific directon then you need to do that with your access list by specifiying the appropriate source and destination address.
Vlan map, as in ACL, has an implicit deny at the end. Any traffic that doesn't match any of the criteria will be dropped and hence, you may have to create a default action to forward all other traffic.
The answer to all your questions is YES. For any traffic that's originating from, received in or stays within VLAN 10 if you have a VLAN filter applied and if there's no match then it's automatically dropped by the switch. Hence, as I stated in my previous post, if your goal is drop only certain traffic then add a statement at the end to forward rest of the traffic.
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.