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Travis Haynes
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How can I route IPv4 and IPv6 traffic on a Windows Server between two NIC interfaces?

I have a Windows Server 2022 machine with two NICs. One is plugged into the gateway provided by the ISP, the second into an unmanaged switch for the LAN. I'd like to configure this machine to handle all of the routing, and for it to provide Internet access to the LAN.


So far I've set up DHCP and DNS on the server, and installed RRAS and NAT. This is working fine for IPv4 traffic, but I don't have any IPv6 Internet access on the LAN adapter, only IPv4.


Can somebody please point me in the right direction for getting this set up correctly?

Windows OSNetworkingDHCP* IPv6

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Travis Haynes

8/22/2022 - Mon
Craig Beck

There isn't really a concept of NAT in IPv6 apart from some specific situations. I wouldn't bother trying to route everything through a Windows server anyway unless it's for inbound VPN connections. Really it's just complicating things that don't need to be complicated. Just use the ISP router and both IPv4 and IPv6 will work fine.
Travis Haynes

ASKER
Is Windows Server just not capable of doing the job of a router?
Craig Beck

It can "route", but not very well at all. It doesn't have probably 95% of the features of a proper router.
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rwheeler23
Travis Haynes

ASKER
What kind of features are we talking about?
Travis Haynes

ASKER
I don't really need any advanced routing features. I just want to provide Internet access to the LAN without having to go out and buy any additional equipment. I'd also like the network to be isolated from other systems, such as the security cameras, and the VoIP systems, both which were both setup by other companies and use the same ISP provided gateway, which is not doing any routing.
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Craig Beck

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Travis Haynes

ASKER
The ISP delegates us a /56. What kind of configuration do I need to set on the router?
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Travis Haynes

ASKER
This isn't really the solution to the problem I was faced with, so I hate to mark this as resolved, because the actual problem I was trying to solve wasn't actually solved. That is, I couldn't figure out how to set up Windows Server as a router with both IPv4 and IPv6 working. It seemed like it would be a trivial thing to set up, but I guess not. In the end, I just decided to take the easy way out and get a router so I can move on with my life. So, sorry for anybody else who comes to this question in the future hoping it solves their problem, only to find yet another dead end, like I did.