hi
i have installed an HWIC-4ESW on a cisco 1841 router and attached an ADSL modem to one of its ports. (f0/0/0)
i have created a vlan and put the interface on that vlan and assigned an ip address to the interface vlan.
now i can ping the ADSL modem.
then i add a route :
ip route 8.8.8.8 255.255.255.255 <ADSL_IP>
now i can ping 8.8.8.8
but the problem is when the router is idle for some time. after that i can not ping the 8.8.8.8 and the connection is lost.
when i do "clear arp-cache" then the connection is OK again.
this problem caused my tunnels goes down after a while and the communication is lost.
is there any idea about this problem ?