3Com 3C840 manual Symptom Possible Cause

13-10CHAPTER 13: TROUBLESHOOTING

Symptom Possible Cause Corrective Action

Some remote sites use the RIP protocol to advertise your IP address to other routers. It may take more than 30 seconds for the IP route to the OfficeConnect Remote 840 to be propagated throughout the remote network.

Wait 30 seconds and try to access remote site again.

IP routing table does not show a route to the remote network, indicating a configuration problem.

One of the following may solve the problem:

Remote WAN IP addresses are entered incorrectly. Check the addresses and reconfigure as needed.

RIP may be turned off. Set RIP to Listen mode to automatically learn routes to remote networks.

A static route (global config.) or framed route (remote site config.) is needed to reach the remote network. Add the route and check the IP routing table to confirm the entry.

No default gateway has been configured that would allow the OfficeConnect Remote 840 to automatically look for the remote network. Enable the default IP gateway option in the remote site profile.