In a 3GPP2 Converged Access Network (CAN), IPv6 stateless auto configuration can be used to configure an IPv6 address of an access terminal (AT) for Simple IPv6 operation. A domain name system (DNS) update is triggered by IPv6 Neighbor Advertisement addresses a need for a DNS update when the full IPv6 address (128 bits) has not yet been sent in IPv6 packets from the AT. Upon receipt of the full address in response to the IPv6 Neighbor Advertisement, provision is made for prompting this DNS update even when the requesting network entity (e.g., access gateway (AGW) or home agent (HA)) does not have security authentication with a responsible home DNS server by utilizing access to an authentication, authorization, and accounting (AAA) function, perhaps via a local visited AAA, to submit an Accounting Request (Start) message that prompts the home DNS server to perform the DNS update.