Troubleshooting connectivity

This procedure describes how to re-establish connectivity between Control-M/EM server and the Control-M client.

To troubleshoot connectivity:

1. From the Tools domain, in the Communication area, select Connectivity Troubleshooting.

   The Connectivity Troubleshooting dialog box appears.

2. Select one of the following:
   • Use Specific IP Address: Enables you to select an IP addresses from enabled network interfaces on the computer.
   • Use IP Address Matching Specific Mask - Enables you to specify an IP mask.

     This option is recommended when using VPN connections, since the IP addresses might change dynamically. This avoids the need of reconfiguring CORBA each time you reconnect. (For example, at runtime the subnet mask 137.72.114.0 will prefer the IP address 137.72.114.142 to 192.168.241.3.) In the configuration file, the mask is set in the –PreferIPMask parameter, and the hostname_in_ior value is $IP (which is evaluated at runtime). If this option is selected, the $IP characters appear in the Troubleshoot Connectivity window; accidentally deleting them prevents the mask from being evaluated at runtime.

   • Use Virtual Hostname or IP Address - Enables you to set a virtual hostname (for example, on a cluster machine), a known hostname, or a fixed IP address.
   • Use Default - Sets the current default hostname or IP address in brackets. In the CORBA configuration file, the value of the –ORBDottedDecimalAddresses parameter determines whether the default is an IP address (value = 1) or a hostname address (value = 0).
3. Clear the Use bidirectional communication checkbox.

   This forces the server to resolve the client’s address and initiate a connection back to it.

4. Click Test.

   The configuration defined for the client is tested for its connectivity with the Control-M/EM server.

5. Select the Use bidirectional communication checkbox.
6. Click Save.
7. Restart all Control-M client components.

   For more information about connectivity issues, see Connectivity problems.