User guide

Checking for Duplicate IP Addresses
Chapter 20 Digi One/PortServer TS 2/4 Troubleshooting 93
Checking for Duplicate IP Addresses
Use this procedure to ensure that the Digi One/PortServer TS 2/4 and another device are not using the
same IP address.
1. From another system on the network, use the ping command to determine if the IP address is in use.
The following is the command syntax:
ping ip-address
2. Do one of the following:
• If there is no response to the ping, exit this procedure and return to the symptoms section of this
section. Two devices using the same IP address is probably not a problem.
• If there is a response, continue with this procedure.
3. Turn the Digi One/PortServer TS 2/4 off and then ping again.
4. Do one of the following:
• If there is a response to the ping, there is another device using that IP address, so assign one of the
devices a new IP address.
• If there is no response, turn the Digi One/PortServer TS 2/4 back on. Another device is not using
the IP address assigned Digi One/PortServer TS 2/4.
Pinging an IP Address
Use this procedure to deterrmine if a system can be reached from across a network.
Attempt to ping the Digi One/PortServer TS 2/4 from another system on the network. Here is the format
of the command:
ping ip-address
Verifying the Network Cabling
Use this procedure to troubleshoot network cabling problems.
1. Check the Ethernet cable. Verify the following:
• The Ethernet cable is connected securely at both ends.
• The Ethernet cable is pinned correctly.
• The quality of the cable is sufficient for the cable length and the cable environment. Consult an
Ethernet cable manufacturer for a recommended cable for your configuration.
2. Verify your Ethernet hub. See your Ethernet hub manual.