One of the biggest issues was VPN clients ignoring IPv6 entirely, so IPv6 connections bypass the VPN, but hopefully that's gotten better now that there's some more attention there (see also: ).ġ For example, one of the consequences of CGN is home users can no longer reliably host a server.
If you do use one, you should first research if it supports IPv6 correctly - modern ones should by now. If you don't use any VPNs, it won't affect you. That's typically due to broken VPN clients and configurations. I ask as I have read about security concerns in relation to certain VPN protocols used in combination with IPv6. Alternatively, you can disable IPv6 at your router, which is a bit better, but again this isn't a great idea. However, this is generally not a good idea.
#Inetwork with ipv4 and ipv6 enables windows
Secondly, can disabling IPv6 from within Windows on a local host gaurentee only my IPv4 address is used from that machine. This is why we need IPv6, and probably why your ISP provides it. There are many, many reasons this is a bad thing 1, but it is necessary simply because there aren't enough IPv4 addresses to go around.
What many ISPs now do is implement CGN, where many people share a single 'public' IPv4 address. Your ISP provides you an IPv4 address for compatibility reasons. However, a lot of servers still don't support IPv6 - there are many workarounds, none particularly great, but they generally involve tunneling through an intermediate server that can translate between the two. Ideally, we should be moving towards greater IPv6 rollout, due to IPv4 exhaustion. Firstly, what is the purpose of me being assigned one of each type?
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