I was able to setup my router c819 with Verizon 3G but there is one minor thing that on the console it keeps saying:
Aug 7 21:04:30.067: %LINK-5-CHANGED: Interface Cellular0, changed state to reset
Aug 7 21:04:35.111: %LINK-3-UPDOWN: Interface Cellular0, changed state to down
Aug 7 21:06:18.423: %LINK-3-UPDOWN: Interface Cellular0, changed state to up
The interface Cellluar0 is connected to Verizon 3G network and I'm able to ping and get to the internet just fine. I did few research and some people said it was access list. My ACL is below but I can't find anything wrong with it. Any ideas?
ip address negotiated
ip nat outside
ip virtual-reassembly in
dialer string cdma
async mode interactive
ppp chap password 0 cisco
access-list 1 permit any
dialer-list 1 protocol ip list 1
When the route is sitting idle, I see the interface cell 0 bouncing up and down. But when I'm ping 220.127.116.11 (or other external ip addresses), I don't see the interface cell 0 bouncing. Any ideas?
My only guess would be that the cellular connection times out when its idle too long. Atleast that was my problem at home. I fixed it with ip sla configured with icmp-echo to an external address reachable through the cellular interface. 1 packet each 10 seconds should be enough.
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Try something like this:
ip sla 1
icmp-echo 18.104.22.168 source-interface Cellular0
ip sla schedule 1 life forever start-time now
It will however only work if you actually have a valid route in the routers RIB pointing traffic (icmp) towards 22.214.171.124 out interface Cellular0. If you dont, choose an ip address that does. (or use a static route towards a /32 prefix aka host)
Also, you may need to change "source-interface Cellular0" to your LAN interface, depending on your router config.