Problem: Another station can be pinged, but some functions are unavailable

Purpose

Perform this procedure to determine whether port availability or routing is the cause of a management domain LAN issue.

The NFM-P uses TCP and UDP ports for communication between components. Some of the ports, such as the SNMP trap port, are configured during installation. Other ports are configured automatically by the NFM-P software.

Steps
 
1 

Log in as the root user on a station in the network management domain.

2 

Verify that the required ports are open or protected by a firewall. See the NSP Planning Guide for a complete list of the ports that the NFM-P requires and the purpose of each port.

Note: If you modify the port configuration, ensure that you record the changes for future reference.

3 

Perform the following steps to check the local routing configuration.:

  1. Open a console window on a station in the management domain.

  2. Use one of the following commands to determine the path to a destination:

    • on a Windows station—tracert

    • on a RHEL station—traceroute

    The command uses ICMP echo request messages to list the near-side interfaces that packets traverse between the source and destination stations. A near-side interface is the interface closest to the source host.

  3. Use OS commands such as netstat -r and arp -a to display a list of active TCP connections, Ethernet statistics, the IP routing table, and the ports on which the station is listening.

End of steps