ssmping

ssmping(1) General Commands Manual ssmping(1)

NAME

   ssmping - check if you can receive IPv4/IPv6 multicast data from an internet host

SYNOPSIS

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

   ssmpingd

DESCRIPTION

   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 232.43.211.234 or ff3e::4321:1234 respectively.

OPTIONS

   For ssmpingd there are no options.  For ssmping 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

   asmping(1) a tool for checking whether can receive ASM.

   dbeacon(1) a distributed beacon multicast implementation.

BUGS

   Please report them to Stig Venaas <venaas@uninett.no>, the author of this tool.

HISTORY

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

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