We have an IPv4 network on several sites, each having its own IPv4 subnet. We have set up a ISATAP "advertising router" on an old XP machine. XP machines pick up from that for their Automatic Tunneling Pseudo Interface IPv6 addresses of the form 2001:db8:0:10:0:5efe:192.168.X.Y where X identifies the site and Y the machine
A first problem is that Vista machines do not pick up addresses of that form (not visible in ipconfig /all) nor can they be pinged using them. Any suggestion as to why the Vista machines are not setting up these ISATAP addresses?
Ping works between XP machines between on the same site and from the site with the ISATAP server to another site but not in the reverse direction. The latter is curious because as I understand it once the advertising router has given a workstation the prefix for the IPv6 tunneling address the router plays no further part - any actual packets sent are IPv4 ones encapsultaing the IPv6 packet and so are routed between sites using the IPv4 infrastucture.
Many thanks
James.
Linear Mode
