Using The Debug Facility - Cisco 2100 Series Configuration Manual

Using the Debug Facility

Using the Debug Facility
The debug facility enables you to display all packets going to and from the controller CPU. You can
enable it for received packets, transmitted packets, or both. By default, all packets received by the debug
facility are displayed. However, you can define access control lists (ACLs) to filter packets before they
are displayed. Packets not passing the ACLs are discarded without being displayed.
Each ACL includes an action (permit, deny, or disable) and one or more fields that can be used to match
the packet. The debug facility provides ACLs that operate at the following levels and on the following
values:
•
•
•
•
•
Cisco Wireless LAN Controller Configuration Guide
D-34
dot11ReceivedFragmentCount
dot11MulticastReceivedFrameCount
dot11FCSErrorCount
dot11TransmittedFrameCount
Driver ACL
NPU encapsulation type
–
Port
–
Ethernet header ACL
Destination address
–
Source address
–
Ethernet type
–
VLAN ID
–
IP header ACL
Source address
–
– Destination address
– Protocol
Source port (if applicable)
–
Destination port (if applicable)
–
EoIP payload Ethernet header ACL
Destination address
–
Source address
–
Ethernet type
–
VLAN ID
–
EoIP payload IP header ACL
Source address
–
Destination address
–
Protocol
–
Source port (if applicable)
–
– Destination port (if applicable)
= 10
= 11
= 12
= 13
Appendix D Troubleshooting
OL-17037-01