On Sun, Jul 10, 2011 at 07:14:59AM -0400, Randy Kramer wrote:
The other feature I get from my NAT gateway (as I mention in another post) is the ability to run multiple computers on one IP address from my ISP, and without the ISP (easily, at least), knowing how many computers I'm running.
Well, with IPv4 you have NAT, simply because you mostly don’t get more than one IPv4 address from your provider.
With IPv6 your provider should give you a network (at least /64 meaning you have 2^64 - 1 hosts), because there is no NAT support for now. If you use randomized IPv6 addresses, your provider will have some problems to count your systems. But if he analyzes the traffic and does a deep packet inspection, he will be able to do so. But this can happen with IPv4 and NAT as well.
If you use a provider with IPv4 connection and run a IPv4-IPv6 tunnel like Sixxs, then your provider will see only the IPv4 address. But if he is really interested in your traffic, he can get more information as well.
So if your provider really wants to count your hosts, he will be able to do so, no matter, if you are using NAT or not.
Can I get the same ability with the approach you mention? I suspect I could, but I've never really fooled with proxies very much.
Well, this depends on the protocols you will use. ;-)Squid will at least unify the IP addresses, but the HTTP header within the TCP/IP package may contain the original IP. For other protocols like Jabber/XMPP you can use a socks proxy. But there may be protocols that you can’t use over a proxy.
Shade and sweet water!
Stephan
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