Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
52
No. Items to check and commands Action
7 Execute the show dot1x
logging operation command,
and check whether dynamic
allocation in VLAN-based
authentication (dynamic) failed.
If Failed to assign VLAN (Reason:xxxxx) is displayed, check
the information displayed for (Reason:xxxxx) and take action as
described below.
 (Reason: No Tunnel-Type Attribute)
[port-based authentication (dynamic)][VLAN-based
authentication (dynamic)]
Dynamic allocation has failed because the Tunnel-Type
attribute is not set for the RADIUS attribute.
Set the Tunnel-Type attribute for the RADIUS attribute of the
RADIUS server.
 (Reason: Tunnel-Type Attribute is not VLAN(13)
[port-based authentication (dynamic)][VLAN-based
authentication (dynamic)]
Dynamic allocation has failed because the value of the
Tunnel-Type attribute for the RADIUS attribute is not (13).
Set VLAN(13) for the Tunnel-Type attribute for the RADIUS
attribute of the RADIUS server.
 (Reason: No Tunnel-Medium-Type Attribute)
[port-based authentication (dynamic)][VLAN-based
authentication (dynamic)]
Dynamic allocation has failed because the
Tunnel-Medium-Type attribute is not set for the RADIUS
attribute.
Set the Tunnel-Medium-Type attribute for the RADIUS
attribute of the RADIUS server.
 (Reason: Tunnel-Medium-Type Attribute is not
IEEE802(6))
[port-based authentication (dynamic)][VLAN-based
authentication (dynamic)]
Dynamic allocation has failed because the value of the
Tunnel-Medium-Type attribute is not IEEE802(6), or
because the value of the Tunnel-Medium-Type attribute is
correct but the tag value does not match the tag of the
Tunnel-Type attribute. Set the correct value or tag for the
Tunnel-Medium-Type attribute for the RADIUS attribute of
the RADIUS server.
 (Reason: No Tunnel-Private-Group-ID Attribute)
[port-based authentication (dynamic)][VLAN-based
authentication (dynamic)]
Dynamic allocation has failed because the
Tunnel-Private-Group-ID attribute is not set for the
RADIUS attribute of the RADIUS server.
Set the Tunnel-Private-Group-ID attribute for the
RADIUS attribute of the RADIUS server.