3Com Router 3031, Command Reference Manual

Page: 443 / 838

IP Performance Configuration Commands 443
View
User view
Parameter
None
Description
Using the debugging tcp md5 command, you can enable the MD5 authentication
debugging of the TCP connection. Using the undo debugging tcp md5 command,
you can disable the MD5 authentication debugging of the TCP connection.
Example
Enable the MD5 authentication debugging of the TCP connection.
<3Com> debugging tcp md5
debugging tcp packet Syntax
■
debugging tcp packet [ task_id socket_id ]
■
undo debugging tcp packet [ task_id socket_id ]
View
User view
Parameter
■
task_id: The ID of a task.
■
socket_id: The ID of a socket.
Description
Using the debugging tcp packet command, you can enable the debugging of TCP
connection. The number of debugging switches users can enable is limited, that is,
at the same time only a fixed number of debugging switches can be enabled
(combination of task ID and socket ID). Using the undo debugging tcp packet
command, you can disable the debugging of TCP connection.
Example
Enable the debugging of TCP connection.
<3Com> debugging tcp packet
<3Com> display debugging
*0.100070-SOCKET-8-TCP PACKET:
1043204051: Input: Co0(5) socketId = 2, state = SYN_SENT,
src = 127.0.0.1:1025, dst = 2.2.2.2:23,
seq = 11084380, ack = 0, optlen = 4, flag = SYN ,
window = 8192
1043204051: Output: Co0(5) SocketId = 2, State = SYN_SENT,
src = 127.0.0.1:1025, Dst = 2.2.2.2:23,
Seq = 11084380, Ack = 0, Datalen = 4, Flag = ACK PSH ,
Window = 8192
1043204051: Retrans: Co0(5) SocketId = 2, State = SYN_SENT,
Src = 127.0.0.1:1025, Dst = 2.2.2.2:23,
Seq = 11084380, Ack = 0, Optlen = 4, Flag = SYN ,
Window = 8192