I am using a Cisco 881G router with cellular card PCEX-3G-CDMA-V.
The correct version of software is running according to the Cisco product overview documents: flash:c880data-universalk9-mz.124-22.T2.bin
While I am using the cellular connection surfing the Internet, watching videos, etc, the cellular link drops unexpectedly. The dialer idle-timeout is configured to 300 and while using the connection I am not idle. I am sending and receiving data. Although it reconnects automatically, the fact that it just drops carrier leaves me to believe I have something configured incorrectly.
My single strength is solid green to very fast blinking RSSI, which means single strength is excellent.
Any help would be greatly appreciated?
UPDATE: - If I set the dialer idle-timeout to 0, the dialer never times out and is active continuously. To shut down the cellular service, I shutdown the cell0 interface but this is not feasible for the actual user. Seems the "interesting traffic" ACL isn't working.
Here are the related config settings
chat-script cdma "" "ATDT#777" TIMEOUT 60 "CONNECT"
ip address negotiated
ip nat outside
no ip mroute-cache
dialer idle-timeout 300
dialer fast-idle 60
dialer wait-for-line-protocol 600
dialer wait-for-carrier-time 600
dialer string cdma
async mode interactive
no peer default ip address
ppp ipcp dns request
ip address 172.21.102.1 255.255.255.0
ip nat inside
ip route 0.0.0.0 0.0.0.0 Cellular0
ip nat inside source route-map nat-cell interface Cellular0 overload
access-list 1 permit 172.21.102.0 0.0.0.255
dialer-list 1 protocol ip list 1
route-map nat-cell permit 10
match ip address 1
match interface Cellular0
exec-timeout 0 0
script dialer cdma