11-15-2007
Tracking down the problem
Is there a way to track down what process is sending to a certain port? I have some thing pounding the network with requests to a multicast IP that doesn't exist. I have shut down all comms related processes and yet it is still there. Need a way to track the port or IP back to the process. Thanks in advance.
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LEARN ABOUT DEBIAN
asmping
asmping(1) General Commands Manual asmping(1)
NAME
asmping - check if you can receive IPv4/IPv6 multicast data from an internet host
SYNOPSIS
asmping [ -46v ] [ -I interface ] [ -c count ] [ -s size ] group host
ssmpingd
DESCRIPTION
asmping and ssmpingd are network level multicast management tools that can be used to check whether one can receive multicast packets via
ASM from a host. The host target given to asmping must run the ssmpingd daemon, which listens on UDP port 4321 for IPv4 and IPv6 unicast
requests. When it receives one, it responds to the specified multicast group which asmping just have joined. Note that one can not use
arbitrary groups. Independent of what group is specified, the last quarter of the address is forced to be 234 or ::4321:1234 for IPv4 or
IPv6 respectively.
OPTIONS
For ssmpingd there are no options. For asmping the options are as follows.
-4 Force IPv4
-6 Force IPv6
-v Print client and server version information.
-I interface
Interface to join on
-c count
Stop after sending (and receiving) count requests (and replies)
-s size
Request replies to have a size of size bytes
SEE ALSO
ssmping(1) a tool for checking whether can receive SSM.
dbeacon(1) a distributed beacon multicast implementation.
BUGS
Please report them to Stig Venaas <venaas@uninett.no>, the author of this tool.
HISTORY
asmping and ssmpingd were developed by Stig Venaas during the early days of the m6bone, the IPv6 multicast backbone.
User Manuals asmping(1)