Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide Chapter 10
3Com Corporation
10-2
Sending, interface = Serial0/0/0, version = 4, headlen = 20, tos = 6,pktlen
= 70, pktid = 49, offset = 0, ttl = 1, protocol = 17,checksum = 55147, s = 1.1.1.2,
d = 224.0.0.2
prompt: Sending the packet from local at Serial0/0/0
<3Com> debugging ip icmp
*0.157090-IP-8-debug_icmp:
ICMP Receive: echo(Type=8, Code=0), Src = 127.0.0.1, Dst = 1.1.1.2
*0.157090-IP-8-debug_icmp:
ICMP Send: echo-reply(Type=0, Code=0), Src = 1.1.1.2, Dst = 127.0.0.1
*0.157090-IP-8-debug_icmp:
ICMP Receive: echo-reply(Type=0, Code=0), Src = 1.1.1.2, Dst = 127.0.0.1
10.1.2 debugging tcp event
Syntax
debugging tcp event [ task_id socket_id ]
undo debugging tcp event [ task_id socket_id ]
View
User view
Parameter
task_id: The ID of a task.
socket_id: The ID of a socket.
Description
Use the debugging tcp event command to enable TCP events debugging.
Use the undo debugging tcp event command to disable TCP events debugging.
There is limitation for the number of debugging switches enabled, that is, only a fixed
number of debugging switches can be enabled at one time (combination of task ID and
socket ID). In addition, when TCP is enabled to receive connection request reactively, a
new socket will be created to establish that connection, and some programs will create
a new task to process the connection, like Telnet server. So to view information about
connection, such parameters as task_id and socket_id cannot be used for filtering.
Example
# Enable debugging of TCP events.
<3Com> debugging tcp event
*0.630270-SOCKET-8-TCP EVENT: