ssmping(1) check if you can receive IPv4/IPv6 multicast data from an internet


ssmping [ -46v ] [ -I interface ] [ -c count ] [ -s size ] host



ssmping and ssmpingd are network level multicast management tools that can be used to check whether one can receive multicast packets via SSM from a host. The host target given to ssmping must run the ssmpingd daemon, which listens on UDP port 4321 for IPv4 and IPv6 unicast requests. When it receives one, it responds to a well known SSM multicast group which ssmping just have joined. Depending on whether the request was made with IPv4 or IPv6, the group is or ff3e::4321:1234 respectively.


For ssmpingd there are no options. For ssmping the options are as follows.
Force IPv4
Force IPv6
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


Please report them to Stig Venaas <[email protected]>, the author of this tool.


ssmping and ssmpingd were developed by Stig Venaas during the early days of the m6bone, the IPv6 multicast backbone.