A packet stored in memory is nothing but a sequence of 1s and 0s . When the router decides to drop a packet, say based on an access-list decision for example, which denies the packet, the router just erases the packet info stored in memory.
Packet drop can be bcos of b/w congestion or route filtering(access-list).in first case every packet has TTL and if a packet can not reach to it's destination in its defined TTL it will assumed to be dropped by the router .In seacond case it might be dropped bcos of access-list defined by the administrator.in this case router will pass all the packets with allowed access and rest will be dropped(implicit deny).
In both the cases packet will be distroyed and that is the end user Application (or TCP) responsebility to request for the packet.
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.