I was wondering if anyone has looked at or is is the process of adding DNS ALG support, or something similar, to bind?
https://tools.ietf.org/html/rfc2694 What I would like to do to have the ability to query a DNS server located behind a NAT, and have it return the IP of the NAT, and setup connection tracking in the NAT to pass traffic thru to the host behind the NAT. The effect of this is to have a reversible NAT, ie one that provides access to hosts behind the NAT, not by their IP, but by their hostname. (There are other things in DNS ALG, but I am really interesting only in the reversible NAT aspect.) Implementing this seems to need the DNS server (bind in this case), to configure the NAT using the 'expect' feature of connection tracking. This would permit the following packets to traverse the NAT to the host, provided of course they meet the expectation (source, protocol, etc). I'd like to know of anyone has looked at this, is implementing it, or knows of any implementations. I have looked into it but have only seen enterprise implementations (Cisco & Juniper), but nothing open-source. /bill _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
