North American Network Operators Group
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Re: Access to the IPv4 net for IPv6-only systems, was: Re: WG Action: Conclusion of IP Version 6 (ipv6)
- From: Owen DeLong
- Date: Tue Oct 23 20:18:58 2007
1. for IPv6-only hosts with modest needs: use an HTTPS proxy to
relay TCP connections
2. for hosts that are connected to IPv6-only networks but with
needs that can't be met by 1., obtain real IPv6 connectivity
tunneled on-demand over IPv6
The advantage of 1. is that proxies and applications that can use
proxies are already in wide use. The advantage of 2. is that it
provides real IPv4 connectivity without compromises. Different
hosts (even on the same subnet) can have different IPv4
connectivity (NAT/no NAT, firewalled/unfirewalled) without having
to provision the complete path between the user and the edge of the
network specifically for that type of connectivity. And no lost
addresses for subnetting etc.
However, Number 2 does not solve the need for an IPv6 only host to
talk to an IPv4 only host
for some purpose other than TCP things that can be fed through an
HTTPS proxy.
Owen
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