HP 2910AL - Manual (Page 495)

Troubleshooting
Browser or Telnet Access Problems
Cannot Telnet into the switch console from a station on the network:
■ Off subnet management stations can lose Telnet access if you enable
routing without first configuring a static (default) route. That is, the switch
uses the IP default gateway only while operating as a Layer 2 device. While
routing is enabled on the switch, the IP default gateway is not used. You
can avoid this problem by using the ip route command to configure a static
(default) route before enabling routing. For more information, refer to the
chapter titled “IP Routing Features” in the Multicast and Routing Guide
for your switch.
■ Telnet access may be disabled by the Inbound Telnet Enabled parameter in
the System Information screen of the menu interface:
2. Switch Configuration
1. System Information
■ The switch may not have the correct IP address, subnet mask, or gateway.
Verify by connecting a console to the switch’s Console port and selecting:
2. Switch Configuration
5. IP Configuration
Note: If DHCP/Bootp is used to configure the switch, refer to the Note,
above.
■ If you are using DHCP to acquire the IP address for the switch, the IP
address “lease time” may have expired so that the IP address has changed.
For more information on how to “reserve” an IP address, refer to the
documentation for the DHCP application that you are using.
■ If one or more IP-Authorized managers are configured, the switch allows
inbound telnet access only to a device having an authorized IP address.
For more information on IP Authorized managers, refer to the Access
Security Guide
for your switch.
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