Chapter7 Troubleshooting the Switch
Troubleshoot IP Address Problems
7-2
User Guide for the CatalystExpress 520 Switches
OL-12761-02
• Restart the Switch, page 7-7
• Reset the Switch, page 7-8
• Recover a Username or Password, page 7-9
• Recover the Switch Software, page 7-10
• Troubleshoot a Failed Software Upgrade, page 7-11
• If You Need Further Help, page 7-11
Troubleshoot IP Address Problems
Here are some basic troubleshooting for problems related to the switch IP address.
• IP Address Is Not Received from DHCP Server, page 7-2
• Switch Has Wrong IP Address, page 7-2
IP Address Is Not Received from DHCP Server
If the switch does not receive an IP address from an upstream device operating as
a DHCP server, make sure that the upstream device is operating as a DHCP server
and again follow the procedures in the “Set Up the Switch (Existing Network)”
section on page 2-2.
Switch Has Wrong IP Address
If the switch is installed in your network but you cannot access the switch because
it has the wrong IP address, assign a new switch IP address. To do this, follow the
procedure in the “Access Direct Managed Mode” section on page 7-6, and then
update the switch IP address on the device manager Express Setup window. You
also can change the switch IP address through the Cisco Configuration Assistant.
