Troubleshooting
LAN Related Issues
Unable to access the Local (LAN) Router unit via Telnet
First, verify that the local Router was given an IP Address that is on the same network as the workstation. Since Telnet uses the IP protocol, establish that IP is functioning correctly by “pinging” the local unit from the workstation or by pinging the workstation from the local unit. Pinging will verify that there is communication between the workstation and the Router. Since you are unable to Telnet into the local unit, you will need to connect the local unit to a workstation using the Async port. Once you are connected to the local unit, refer to Chapter 7, Ping Utility. The inability to ping from one device to the other indicates a problem with IP or possibly the Telnet software. Refer to your Telnet documentation for more information.
Unable to access a remote unit via Telnet
Refer to the instructions given above in Unable to access the local unit via Telnet. In addition, make sure that the workstation trying to Telnet, as well as the IP and ARP packets are authorized to communicate across the WAN. Review the FORWARD MODE field setting as well as the enabled filters on both the local and remote units to verify that they are set up to communicate (refer to Chapter 3, Configuration - Profile Directory - Chapter 4, LAN (Local) Profile Setup and Chapter 5, Remote (WAN) Profile. Also, if the remote network is different, define the local unit’s IP Address as the default route for the workstation and make sure that there is a remote route to the remote’s network in the Network/Server table.
Be aware that if you establish a firewall filter and do not expressly permit Telnetting into this unit, you will be denied access.
CMG Router - Release 2.7 |
