Subj : Kabel Deutschland & IPv6
To   : Benny Pedersen
From : Andrew Leary
Date : Sun Dec 22 2013 18:09:31

Hello Benny!

Sunday December 22 2013 08:49, Benny Pedersen wrote to Andrew Leary:

 AL>> It is possible that IPv6 support could be added to
 AL>> NetSerial for Windows, although IPv6 support on Windows is only
 AL>> complete on Windows Vista or later.

 BP> binkp have ipv6 on windows imho ?

BinkD does.  However, various other legacy mailers that people are using in combination with NetSerial or similar do not currently support IPv6.

 AL>> An IPv6 only node should only have an AAAA record in DNS.

 BP> +1

 AL>> In theory, when an IPv4 only node tries to look up the IPv6
 AL>> node's DNS record,

 BP> this is still possible yes, it should still work since its just dns
 BP> data here in that stage

 AL>> it will fail with NXDOMAIN or similar.

 BP> inccorect a ipv4 dns server can still resolve ipv6 hostnames to ipv6
 BP> ips

Possibly, but what will the IPv4 only node do with that data?  An IPv4 only node will be looking for A records only (it doesn't know what an AAAA record is), and if there isn't a A record in DNS, it will fail to resolve the name to an IP address.

 BP> and the other way around will also work, eg a ipv6 only node can still
 BP> see full ipv4 dns data

 AL>> However, this may take some time before the failure occurs.

 BP> what failure ? :=)

See above.

Andrew

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