Is IPv6 likely to introduce new security vulnerabilities?
Traditionally, Network Address Translation (NAT) has been used to forward incoming traffic to specific IPv4 addresses and this has, to some extent, reduced the number of devices in a local area network being accessible directly from outside. Using IPv6 allocates addresses which are theoretically all routable through the Internet. This might constitute a security threat. The emphasis of setting up NAT correctly in the router is therefore now shifting to setting up the Firewall correctly. It is also worth knowing that IPv6 tunneling allows a path through IPv4 firewalls. Attackers might be able to penetrate your network if you don’t set-up the IPv6 firewall.
