How would I refer to a Protocol other than TCP or UDP in the IO::Sockets module ? Everything I read tells me I can substitute the number of the protocol (I'm trying Protocol 50 - ESP) for the default which is TCP, but it doesn't work. e.g. $remote = IO::Socket::INET->new( Proto => "50", PeerAddr => "$host", PeerPort => " ??", -- no ports .. ) thanks !