Extracted from Pike v7.8 release 866 at 2016-11-06.
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Stdio
Stdio.UDP

Methods
 add_membership()
 bind()
 close()
 connect()
 drop_membership()
 enable_broadcast()
 enable_multicast()
 errno()
 get_type()
 query_address()
 query_backend()
 read()
 send()
 set_backend()
 set_blocking()
 set_multicast_ttl()
 set_nonblocking()
 set_read_callback()
 set_type()
 wait()
previousStdio.UDP()->set_blocking()
Stdio.UDP()->set_nonblocking()next

Method Stdio.UDP()->set_multicast_ttl()

Method set_multicast_ttl

int set_multicast_ttl(int ttl)

Description

Set the time-to-live value of outgoing multicast packets for this socket. It is very important for multicast packets to set the smallest TTL possible. The default is 1 which means that multicast packets don't leacl the local network unless the user program explicitly request it. See also the Unix man page for setsocketopt IPPROTO_IP IP_MULTICAST_TTL.