I would like to set up my 1720 router so that internet traffic does not get through for web browsing but email traffic (smtp, pop3) is allowed. I've looked at access-lists for a way to stop http traffic but that's not an option as far as I can tell. Any advice?
You can do what you explain by using extended access-lists. For example, you could create an access-list that denies all outbound traffic on TCP/UDP port 80 (HTTP) and permit everything else. This would prevent your internal users from from sending HTTP requests. Another way that I would prefer, is create an access-list that permits only the services you want (SMTP, POP, etc...) and denies the rest. The following link may help: http://www.cisco.com/warp/customer/707/confaccesslists.html
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.