Hi David -

On Tue, 19 Apr 2011 10:03:02 -0500, David Gibbs <david@xxxxxxxxxxxx>
wrote:

I ask this for two reasons ... 1) One of the requests we've had for Implementer is to support IPV6 in our comms framework (luckily it's all implemented using service programs so I won't have to rejigger all the applications), and 2) I'm just darn curious.

I can understand it's theoretical need on the internet ... but once you've bridged into a private network, does any organization have more machines than the private A class block (10.x.x.x) can't handle?

One of the things I've wondered about ... If a PC on an internal IPv4
network wants to reach an internet host, and that internet host only
has an IPv6 address, can that IPv6 IP address be put in the IPv4
packets for addressing purposes?

If not, then it seems like it wouldn't be possible to use external DNS
servers. A company in this position would have to have their own DNS
servers, and translate the real IPv6 address to some dummy internal
IPv4 address and make sure that the NAT router(s) know the mapping so
that they can insert the real IPv6 address when they translate the
internal IPv4 packet to the internet IPv6 packet. And of course,
insert the same dummy IPv4 address when doing the reverse translation
of the incoming packets.

Or am I totally barking up the wrong tree without a paddle??? :)

Ken
Opinions expressed are my own and do not necessarily represent the views
of my employer or anyone in their right mind.

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