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1 answer
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Is NAT66 increasing security?

NAT is so standard for IPv4 that nobody thinks about it but for IPv6 it's considered a really bad option. (Article from APNIC) Of course there's the stateless NPTv6 and the firewall can be configured ...
Philip's user avatar
  • 219
1 vote
1 answer
524 views

IPv6 address leaking despite VPN?

Given that commands like ifconfig or ip address don't require root privileges, apps can access information about ip address. If you use ipv4, you are normally behind NAT and apps would get an address ...
lolz's user avatar
  • 21
1 vote
0 answers
173 views

How to Prevent Attacker from Abusing IPv4-embedded IPv6 to Bypass Security Mechanism?

Section 5.3 of RFC6052 explained how an attacker could abuse the NAT64 translation mechanism to bypass security mechanism such as firewall or IDS/IPS if those devices only have an IPv4 blacklist. The ...
maximillian1's user avatar
0 votes
1 answer
1k views

IPv6 and NAT firewall effect

It seems that people still argue on whether to use NAT with IPv6 for its side-role as a firewall hiding inner network from the outside (providing user anonymity and security as well). I am wondering ...
sasuke_X220's user avatar
77 votes
7 answers
92k views

With IPv6 do we need to use NAT anymore?

I'm wondering how to use NAT with IPv6. It seems that you don't even need NAT anymore. What exactly is the concept behind firewall configurations in IPv6 environments?
JaafarMehrez's user avatar