MulticastSocket.setTTL
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public void setTTL( byte ttl ) throws IOException
Parameters
- ttl
- the time-to-live
Description
Set the default time-to-live for multicast packets sent out
on this socket. The TTL sets the IP time-to-live for
DatagramPackets sent to a MulticastGroup, which
specifies how many "hops" that the packet will be forwarded
on the network before it expires.
The ttl is an unsigned 8-bit quantity, and so must be
in the range 0 < ttl <= 0xFF .