HP Comware 5 Debug Manual Vol 2

If no parameter is specified, this command enables the IPv6 TCP packet debugging of all tasks, sockets,
and interface cards. (Distributed devices.)
If no parameter is specified, this command enables the IPv6 TCP packet debugging of all tasks, sockets,
and member devices. (Centralized IRF devices.)
Examples
# Enable IPv6 TCP packet debugging on the device that supports IPv6. The device's interfaces have IPv6
addresses.
<Sysname> terminal debugging
<Sysname> debugging tcp ipv6 packet
# Enable the Telnet server function.
<Sysname> system-view
[Sysname] telnet server enable
# Create VTY users.
[Sysname] user-interface vty 0 4
[Sysname-ui-vty0-4] authentication-mode none
[Sysname-ui-vty0-4] user privilege level 3
Output similar to the following example is generated when a TCP connection is initiated to the local
device from another device:
*Aug 4 02:16:46:392 2006 Sysname IPV6TCP/7/TCP6 PACKET:
1123121806: Input: task = VTYD(34), socketid = 2, state = Listening,
src = 2::3->1028, dst = 2::2->23,
seq = 2387139693, ack = 0, optlen = 4, flag = SYN,
window = 16384
// A SYN packet was received, and the state of the TCP connection is Listening.
*Aug 4 02:16:46:392 2006 Sysname IPV6TCP/7/TCP6 PACKET:
1123121806: Output: task = VTYD(34), socketid = 0, state = Syn_Rcvd,
src = 2::2->23, dst = 2::3->1028,
seq = 1851220387, ack = 2387139694, optlen = 4, flag = ACK SYN,
window = 8192
// A SYN ACK packet was sent, and the state of the TCP connection is Syn_Rcvd.
*Aug 4 02:16:46:394 2006 Sysname IPV6TCP/7/TCP6 PACKET:
1123121806: Input: task = VTYD(34), socketid = 0, state = Syn_Rcvd,
src = 2::3->1028, dst = 2::2->23,
seq = 2387139694, ack = 1851220388, flag = ACK,
window = 17280
// A SYN ACK packet was received, and the state of the TCP connection is Syn_Rcvd. After processing
this packet, the TCP connection will change its state to Established.
debugging udp ipv6 packet
Use debugging udp ipv6 packet to enable IPv6 UDP packet debugging.
Use undo debugging udp ipv6 packet to disable IPv6 UDP packet debugging.
Syntax
debugging udp ipv6 packet [ task-id socket-id ]
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