IBM HTTP Server supports IPv6 on Windows XP, Windows Server 2003, Windows Server 2008, and Windows Vista operating systems. It does not support IPv6 on the Windows 2000 operating system.
Support for IPv6 on Windows operating systems is configured differently than other supported platforms. The Listen directive on Windows operating systems should always include either an IPv4 address or an IPv6 address. Any existing Listen directives that are not qualified with an IP address should be updated to include an IP address, even if Windows IPv6 networking is not configured.
This qualification is
especially needed for Windows Server 2008, which is a dual stack operating
system, to ensure that incoming requests to the Web server from remote
systems are handled properly.
Listen [::]:80
If you want to accept connections over IPv4, configure Listen 0.0.0.0:80 or AfpaPort 80. Advanced fast path architecture (AFPA) is only supported for IPv4.
The fast response cache
accelerator (FRCA) and the associated AFPA directives are not supported
for the IBM HTTP Server when it is running on the Windows Server 2008
operating system.
Configure Windows IPv6 networking before enabling the Listen directive for IPv6.