Using Controller Utilities

1. From the top menu, click Controller.
2. In the left pane, click Network > Utilities.
   

   Wireless Controller Utilities Screen

   
3. In the Target IP Address box, type the IP address of the destination computer.
   

   Note

   The Target IP address supports both IPv4 and IPv6 addresses.
4. To test a connection to the target IP address, click Ping.
   A window displays with the ping results. The following is an example:

   

   
5. To record the route through the Internet between your computer and the target IP address, click Trace Route.

   The following is an example of trace results.

   

   Wireless Controller TCP Dump Management

   

   The wireless controller TCP dump management allows you to capture exception traffic that is sent to the management plane. Exception traffic is defined as traffic that is sent to the management plane from the data/control plane for special handling. For example, exception traffic can include DHCP, OSPF, and TFTP traffic.

   When capturing exception traffic, you define the following:

   • The physical or virtual VNS port on which the captured exception traffic travels
   • The name and size of the captured traffic file
     • When naming the file, the file name extension must be .cap.
     • 10 MB is the minimum and 1 GB is the maximum size of the captured traffic file.
   • The location where the captured TCP dump file is saved

   The captured traffic file is stored in a binary tcpdump-format file on the controller or flash card. The captured traffic file can then be exported to a local machine for packet analysis and opened with a traffic analysis tool. For example, Wireshark.

   The controller can only store one captured traffic file locally. Alternately, if you choose to save the captured traffic file on a flash card, the available space on the flash card will dictate how many captured traffic files you can save.