[arin-ppml] IPv6 Non-connected networks

Roger Marquis marquis at roble.com
Mon Mar 29 14:49:06 EDT 2010

Owen not-a-security-engineer DeLong wrote:
> Things actually slowing down residential IPv6 deployment:
> 	+	Lack of CPE support
> 	+	Lack of Head-End (PON concentrator, DSLAM, CMTS, etc.) support
> 	+	Lack of support from the ISP

The same arguments can be made for NAT.  NAT stateful translation can be
added to CPE just as easily as IPv6 support can be added to CPE.
Upgrading equipment in COs and in colos is no more difficult either.

Citing the lack of CPE support for Torrent, SIP and other protocols as a
reason to leave NAT out of IPv6 is specious.  The CPE will still need
stateful translation to provide the same security, and NAT is the
simplist way to do it.

If customer support engineers are frustrated by calls for better VOIP and
Torrent support they should provide CPE that supports these protocols
securely and transparently instead of complaining about NAT.

Roger Marquis

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