Windows XP SP1's resolver cannot handle CNAME correctly

Created: 2005/02/07
Revised: 2005/03/24
Published: 2005/03/24

Description

If a destination name is CNAME RR to a name which has A RR and AAAA RR, Windows XP SP1 cannot gain access to the destination even with IPv4. This is due to the poor cache implementation of resolver.

Fixed

SP2

Workaround

Use AAAA RR instead of CNAME RR in a server side.

Memo

None