DUA1840-0AAA01
VT100 Problems
6-3
VT100 Problems
The SNMP Network Manager cannot access the device:
Check the device's IP address, subnet mask and default router are
correctly configured, and that the device has been reset. Check
that the device's IP address is correctly recorded by the SNMP
Network Manager (refer to the user manual for the Network
Manager).
The Telnet workstation cannot access the device:
Check that your terminal or terminal emulator is correctly
configured to operate as a VT100 terminal.
Check the device's IP address, subnet mask and default router are
correctly configured, and that the device has been reset. Ensure that
you enter the IP address correctly when invoking the Telnet facility.
Traps are not received by the SNMP Network Manager:
Check the SNMP Network Manager's IP address and that the
community string is correctly configured.
The SNMP Network Manager or Telnet workstation can no longer
access the device:
Check that Remote Telnet access or Community-SNMP access is
enabled.
Check that the port through which you are trying to access the
device has not been disabled, see
“Port Setup”
in Chapter 3. If it is
enabled, check the connections and network cabling at the port.
Check that the port though which you are trying to access the
device is still in VLAN 1 (the Default VLAN). See
“Setting Up VLANs
on the Switch”
in Chapter 4.
Try accessing the device through a different port. If you can now
access the device, a problem with the original port is indicated.
Re-examine the connections and cabling.
Possibly there is a network problem preventing you accessing the
device over the network. Try accessing the device through the serial
port.