Top 10 Myths About IPv6 - Slide 6

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IPv6 doesn’t require NAT. This is a good thing. NAT “hides” the internal network behind one outside address.  However, NAT security is only as good as the firewall policy: a bad policy is as insecure as no policy at all, with or without NAT.  NAT wasn’t built for security, it was a patch to extend the life of IPv4, and like many patches: it breaks things. NAT just makes understanding the network harder for both intruders and administrators. IPv6 is scary because it shows that Emperor NAT has no clothes.

There’s also a method of auto-configuring IPv6 that uses the PC’s MAC address in the IPv6 address.  If that’s a privacy concern for you, just use DHCPv6, which will also make understanding your network easier for you.

IPv6 has been on almost every IT team’s “to implement next year” list, but with World IPv6 Day happening on June 6th, many websites will be making the switch and staying there. Jim MacLeod, product manager, and the team from WildPackets have taken a closer look at 10 myths and set the record straight about this enigmatic protocol to help the transfer go more smoothly.

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