John Harris wrote: > Thing is, binding a port and expecting it to be open to every network > interface you've got are two very different things. Once again John Harris is completely wrong. The bind system call is precisely how a program specifies which network interfaces it wants to open a socket to. A program that calls bind with IN6ADDR_ANY_INIT or INADDR_ANY and a specific port number expects that port to be open to every network interface the computer has. A program that doesn't intend to listen on every network interface will bind to an IP address assigned to one interface to listen only on that network, or maybe a localhost address to listen only on the loopback interface. The port and the network interface are specified together in a single sockaddr object passed to a single system call, so it's very much the same thing. Björn Persson
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