Subject: [Softwires] Why not use AFTR IPv6 address for the new DHCPv6 option?

From: "lizhenqiang" <[email-masked]>
Date: Thu, 30 Jun 2011 18:54:38 +0800

Hi All,

One question about the new DHCPv6 option for AFTR discovery. Maybe I missed the previous discussion. Sorry for that.
According to draft-ietf-softwire-ds-lite-tunnel-option, a FQDN is suggested to be deliveried in the new DHCPv6 option to the B4. When receiving the FQDN, B4 has to do the DNS resolution to get the AFTR IPv6 address. The FQDN of the AFTR has to be configured in the DNS server. So, I think delivering the IPv6 address of the AFTR directly to the B4 is better. We can use DHCPv6 option to do this. The address of the AFTR only needs to be configured in the DHCPv6 server.

Best Regards,
Zhenqiang Li  
2011-06-30