Support for IPv6-to-IPv6 Network Prefix Translation (RFC6296)
If your ISP provides you with dynamic IPv6 prefixes, but you want to have static IP assignment in your LAN it would be helpful, if UTM would support prefix translation. Otherwise your assigned addresses would not be reachable anymore in case the ISP assigns a new prefix.
Another way to work around this would be to implement NAT with IPv6 ULAs on the LAN (like it was in IPv4). But this is not what IPv6 was designed for.
Johannes Müller
shared this idea
4 comments
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Johannes Müller
commented
Thanks Ulrich,
I'll give that a try.
Looking forward to that renumbering feature! Can you provide me with further information about it? RFC etc.? -
Ulrich Weber
commented
Yes you are right, you need two 1:1 NAT rules to have IPv6-to-IPv6 Network Prefix Translation in both directions. But you probably don't need two for each network.
Its probably sufficinet if you create two 1:1 NAT rules for the whole /48 range.
BTW: v9.1 will have manual and automatic IPv6 renumbering support!
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Johannes Müller
commented
Hello Alan,
i'm not quite sure about this. With IPv6 1:1 NAT it would be possible to map a whole network onto another one. To map networks in both directions I would need 2 rules per network. If i have many subnets this would require a lot of rules, just because the prefix is different.
Is 1:1 NAT what you meant?Regards
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Hi Johannes, IPv6 NAT and Masquerading are possible in V9. Is this different than what you are looking for now?
