[OCCAID] rDNS request ..

[Jeroen Massar]

On Wed, 2006-03-08 at 10:21 +0530, Suresh Ramasubramanian wrote:
> OK - got a box with v6 up and running, occaid /48
[..]
> Only problem - v6 packets go out over the tunnel's interface
> 2001:4830:e0::2 and that's the source IP that's visible to any v6
> mailserver that receives email. That doesnt have rDNS set, and I've got
> to email a guy like Vixie who wants rDNS on any email that he gets :)

Well Paul as absolutely correct here :) (I demand it too)

> 2. Set packets to go out through smtp-out.hserus.net and make that the
> source IP that's visible.

a) Get a real IPv6 stack which has policy routing, but not many have
this.
(on linux just add the address you want as outbound as the last one on
the interface as linux always pick the last added one for new connects)
For the *BSD you have there

b) Configure your SMTP config correctly:
eg postfix in main.cf:
smtp_bind_address6 = 2001:db8::25
sendmail:
O DaemonPortOptions=Name=IPv6, Family=inet6, Modifiers=O,
Address=2001:db8::25

Option b) seems to be the one you should be taking as this clearly only
affects your SMTP setup.

Greets,
 Jeroen

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