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Old 02-18-2011, 09:57 PM   #1
user100
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IPv6 NATting


Hi,

I am wondering how I can share connection with my IPv6 connection.

I am using slackware and ip6tables so far. But the problem is that IPv6 or ip6tables has no "-t nat", so how could I just simply share internet with the computers behind the firewall?
 
Old 02-19-2011, 05:57 PM   #2
macemoneta
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The point of ipv6 is that everything gets its own address, so there is no NAT. If you have multiple machines, request a subnet from your service provider.
 
Old 02-19-2011, 07:54 PM   #3
user100
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Well that is not exactly secure. Specially if they are windows computers or such.

And how could I divide that subnet to those computer, if what you say is true concerning the subnet.

Would it go through 1 modem or router to multiple machines or 1 modem per machine? Can't I just divide that subnet through 1 machine to multiple computers, even though thats kind off a nat.

There has to be a way to simply share connection with other computers.
 
Old 02-19-2011, 08:12 PM   #4
win32sux
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Quote:
Originally Posted by user100 View Post
Well that is not exactly secure.
Abstaining from doing NAT doesn't hinder your ability to do packet filtering, so security isn't adversely affected IMHO.

Last edited by win32sux; 02-19-2011 at 08:56 PM. Reason: Reworded.
 
Old 02-19-2011, 08:20 PM   #5
user100
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Ok, if thats the route we're taking. Let's say how would I than share connection behind my firewall?

NAT may not adversely affect security, but a firewall certainly does.

Last edited by user100; 02-21-2011 at 04:33 PM.
 
Old 02-19-2011, 08:31 PM   #6
designator
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Quote:
Originally Posted by macemoneta View Post
The point of ipv6 is that everything gets its own address, so there is no NAT. If you have multiple machines, request a subnet from your service provider.
Errr... who told you that? NAT will be there just fine along with IPv6. In fact since many internal devices like printers don't support IPv6, they will always stay behind NAT.
Regardless of how many addresses IPv6 can accommodate, there's no reason to reserve one for every iPhone and PSP out there.
http://en.wikipedia.org/wiki/Private...IPv6_addresses

@OP, I suspect you'll need a bridge to create IPv4 NAT behind IPv6 connection so you'll need both version of iptables running.

Last edited by designator; 02-19-2011 at 08:35 PM.
 
  


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