I have a client that uses IO::Socket to create a socket to a server on another machine and exchange data on that socket. The server is fussy about what IP addresses it will accept connections from, and as the machine running the client uses IP aliasing I need to be able to set which IP address the client connection goes out on.

I can't find anything in the documentation for IO::Socket or in the man pages for the socket system calls that might help me, and all the web searches I have tried come up with nothing relevant.
Any ideas welcome.

The client code starts:

 my $sock = IO::Socket::INET->new("10.0.0.1:5015") or die "$!\n";
 # Write and read messages to socket.

The machine runs Linux (Debian Woody with 2.4.20 kernel)
and Perl (5.6.1).  This is the output of ifconfig:

eth0      Link encap:Ethernet  HWaddr 00:E0:81:B4:77:83  
          inet addr:10.0.0.148  Bcast:10.0.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0:0    Link encap:Ethernet  HWaddr 00:E0:81:B4:77:83  
          inet addr:10.0.0.149  Bcast:10.0.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

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In reply to Setting IP address of client socket by alanw

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