3Com RMON-EMP-3 installation and operation guide Troubleshooting Network Connectivity Problems

Troubleshooting Network Connectivity Problems

If the RMON MultiProbe Module does not appear to be transmitting or receving traffic properly on the network, it could indicate that there is no connection to the network. Try performing one or more of the following troubleshooting actions:

❑From the 3Com management interface (for example, ONline management module), verify that the RMON MultiProbe Module interfaces are set to the appropriate networks.

❑Using the RMON MultiProbe Module configuration menus,verify that the following terminal parameters are set correctly:

–IP address

–Subnet mask

–Default gateway

For terminal configuration information, refer to Chapter 2, Installing the Module, the section Connecting a Terminal.

❑Use the ping utility to confirm there is network connectivity.

❑Verify that the Ethernet configuration is valid. Refer to the documentation that accompanied the Ethernet media modules for more information.

If the RMON MultiProbe Module responds to pings, but not to SNMP, verify that the RMON client software community string matches the RMON MultiProbe Module community string default value. The RMON MultiProbe Module default community name is admin. (Community names are case-sensitive.) The admin community name provides read-write access.

Note: You can only modify the community name using the RMON client software.

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