ITS#681: Fix for problems with IPv6 and ACLs

ITS#681: Fix for problems with IPv6 and ACLs
	from Stig Venaas <venaas@uninett.no>
---
Copyright 2000 Stig Venaas, UNINETT
All rights reserved.

Redistribution and use in source and binary forms are permitted
without restriction or fee of any kind as long as this notice is
preserved. The name of UNINETT may not be used to endorse or promote
products derived from this software without specific prior written
permission. This software is provided ``as is'' without express or
implied warranty.