Switch_A#debug dot1x packets
Dot1x packet info debugging is on
00:29:36: dot1x-packet:Rx EAP-Response(Id), id 2, ver 1, len 16 (Fa0/1)
00:29:36: dot1x-packet:Rx sa=001e.8cc8.0235, da=0180.c200.0003, et 888E (Fa0/1)
00:29:36: dot1x-packet:Tx EAP-Request(Id), id 0, ver 1, len 5 (Fa0/1)
00:29:36: dot1x-packet:Tx sa=0006.2afb.9f81, da=0180.c200.0003, et 888E (Fa0/1)
00:29:36: dot1x-packet:Rx EAP-Response(Id), id 0, ver 1, len 16 (Fa0/1)
00:29:36: dot1x-packet:Rx sa=001e.8cc8.0235, da=0180.c200.0003, et 888E (Fa0/1)
00:29:36: dot1x-packet:Tx EAP-Request(MD5), id 1, ver 1, len 22 (Fa0/1)
00:29:36: dot1x-packet:Tx sa=0006.2afb.9f81, da=0180.c200.0003, et 888E (Fa0/1)
00:29:36: dot1x-packet:Rx EAP-Response(MD5), id 1, ver 1, len 33 (Fa0/1)
00:29:36: dot1x-packet:Rx sa=001e.8cc8.0235, da=0180.c200.0003, et 888E (Fa0/1)
00:29:36: dot1x-packet:Tx EAP-Success, id 1, ver 1, len 4 (Fa0/1)
00:29:36: dot1x-packet:Tx sa=0006.2afb.9f81, da=0180.c200.0003, et 888E (Fa0/1)
00:29:37: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up