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I have two scripts for sending out UDP packets to IPv4 and IPv6 sockets, using IO::Socket::INET and INET6 respectively.

IPv4 Client

use IO::Socket; use Socket; my $sock = IO::Socket::INET->new( Proto => 'udp', ) or die "Could not create socket: $!\n"; my $pack = pack_sockaddr_in(23456, inet_aton('10.254.83.40')); IO::Socket::send($sock, "message", 0, $pack) or die "Can't send: $!\n" +; print $sock->sockhost(),"\n"; print $sock->sockport(),"\n"; print $sock->peerhost(),"\n"; print $sock->peerport(),"\n";

IPv6 Client

use IO::Socket::INET6; use Socket; use Socket6; my $sock = IO::Socket::INET6->new( Proto => 'udp', ) or die "Could not create socket: $!\n"; my $pack = pack_sockaddr_in6(23456, inet_pton(AF_INET6,'2000:1234:5678 +:9abc::eeff')); IO::Socket::send($sock, "message", 0, $pack) or die "Can't send: $!\n" +; print $sock->sockhost(),"\n"; print $sock->sockport(),"\n"; print $sock->peerhost(),"\n"; print $sock->peerport(),"\n";

IPv4 Output

0.0.0.0 32807 10.254.83.40 23456

IPv6 Output

:: -4622771466457284569 2000:1234:5678:9abc::eeff -4622771466457293920

Question

I can't figure out why INET6 sockets are printing such weird values for the port numbers, even though I'm using the same 23456 in both cases.


In reply to IPv6 Sockets by nitin1704

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