Troubleshooting via Packet Captures

Packet captures can be invaluable for diagnosing errors as well. If an unencrypted method (RADIUS, LDAP without SSL) is in use, the actual password being used may not be visible but enough of the protocol exchange can be seen to determine why a request is failing to complete. This is especially true when a capture is loaded in Wireshark, which can interpret the responses, as seen in this Figure :