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KnechtRootrecht
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Feature Request: IPv6 NAT support

Sun Sep 23, 2018 4:42 pm

I searched in this forum (search.php?keywords=IPv6+NAT) and wondered if nobody asked for IPv6 NAT support.

One goal of IPv6 was to reinstate the end-to-end principle of the internet - without NAT.
But in fact there are still reasonable reasons for IPv6 NAT support. Of course a small SOHO or home network will drive without NAT. But in advanced architectures there are some needs to NAT - even with IPv6: handling with dynamic prefixes, virtualization platforms, load balancers, complex network infrastructure and more.

So I'd like to request the feature to use NAT with IPv6 like the linux kernel and other platforms can already do.

For the votaries of academic principles of network: Nobody will force you to use it. But in the real world, there are some meaningful applications for it. So please exempt me from discussions about the sense of IPv6 NAT. This discussion comes from the same sphere as for example the short-sighted people who forced the unix timestamp to be an 32 bit integer so that we will drive into several problems in a few years. Reasonable from the academic point but useless in the reality.
 
OndrejHolas
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Re: Feature Request: IPv6 NAT support

Sun Sep 23, 2018 11:26 pm

+1

Nowadays, IPv6 perimeter firewalls at my customers' networks run on Linux due to the lack of IPv6 NAT (especially prefix translation) support in ROS.

Ondrej
 
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Cha0s
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Re: Feature Request: IPv6 NAT support

Tue Sep 25, 2018 10:47 am

+1
I've requested this back in 2014.
viewtopic.php?f=19&t=90564
 
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Cha0s
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Re: Feature Request: IPv6 NAT support

Tue Sep 25, 2018 10:52 am

And another interesting thread on the subject viewtopic.php?t=110925
 
colin
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Re: Feature Request: IPv6 NAT support

Wed Sep 26, 2018 6:39 pm

+1. very very need it, and routing mark
 
nexusds
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Re: Feature Request: IPv6 NAT support

Wed Mar 25, 2020 5:43 am

+1
multi homed system needs to be able to retain one physical IPv6 address and NAT to a backup system for clients
 
volkirik
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Re: Feature Request: IPv6 NAT support

Wed Mar 25, 2020 8:38 am

+1 for this

ipv6 fasttrack is also needed with route caches.
 
muetzekoeln
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Re: Feature Request: IPv6 NAT support

Wed Mar 25, 2020 12:54 pm

+1 (for my dual-homed setup)

Also IPv4 to IPv6 address-port-translation is needed (initiator of connection on v4-side). Many small devices (aka IoT) or legacy devices only have IPv4 stack, but carriers will only offer IPv6 addresses in the very near future.
 
Uxorious
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Re: Feature Request: IPv6 NAT support

Sun Apr 19, 2020 3:49 am

Will MikroTik ever add prefix translation support?
 
evgenij
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Re: Feature Request: IPv6 NAT support

Tue Sep 01, 2020 11:52 pm

+1 more

Please add NAT support for IPv6
 
DarkNate
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Re: Feature Request: IPv6 NAT support

Wed Sep 02, 2020 12:04 am

IPv6 NAT will kill the whole point of IPv6.

https://blog.apnic.net/2018/02/02/nat66-good-bad-ugly/
 
janewilly
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Re: Feature Request: IPv6 NAT support

Wed Sep 02, 2020 12:44 pm

IPv6 edge firewalls at my clients' systems run on Linux because of the absence of IPv6 NAT particularly prefix interpretation uphold in ROS.
 
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Cha0s
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Re: Feature Request: IPv6 NAT support

Wed Sep 02, 2020 1:32 pm

Also for every NAT that happens in v6, 4 kitties are murdered!

Keep that in mind next time you people ask such outrageous features that other vendors support for years now!
The body(kitty) count is in the billions by now! A tragedy really...
 
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mozerd
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Re: Feature Request: IPv6 NAT support

Wed Sep 02, 2020 3:09 pm

ABSOLUTELY no need for NAT under ipv6 ......

NAT has spoiled everyone .... what is needed is far wider adoption of ipv6 and its PROPER implementation. Yes its been very slow but that is about to change since the US Government will be ipv6 depended by 2025 then no one will have any other choice but to CONFORM,
 
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Cha0s
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Re: Feature Request: IPv6 NAT support

Sun Sep 06, 2020 3:16 pm

ABSOLUTELY no need for NAT under ipv6 ......
Of course! We wouldn't want to be able to do what we need with our network. That would be outrageous!
 
ivanfm
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Re: Feature Request: IPv6 NAT support

Fri Sep 11, 2020 9:20 pm

Prefix translation is very usefull and available on linux kernel.

Not everyone can get an ASN to have fixed ipv6. My home provider changes my /64 ipv6 delegated prefix each week.

Using internal address and prefix translation make very easy to overcome this.
 
asy
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Re: Feature Request: IPv6 NAT support

Tue Sep 15, 2020 4:26 pm

ABSOLUTELY no need for NAT under ipv6 ......
Yes! All your computers, printers, refrigerators and other home appliances must be directly accessible for everyone on the Internet. :-)

Now seriously. NAT is not a Firewall but nevertheless NAT is also a wall before direct access to internal devices in the local network. Firewall rules can be accidentally dropped and full access will be granted. In contrast, a problem with NAT will break the network and directly access will not be obtained.

b.t.w. RFC 4193 describes Unique Local IPv6 Unicast Addresses.
Last edited by asy on Tue Sep 15, 2020 7:17 pm, edited 4 times in total.
 
kalamaja
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Re: Feature Request: IPv6 NAT support

Tue Sep 15, 2020 5:19 pm

THERE IS one specific need for NAT under IPv6: NAT64 aka most successful transition mechanism at the moment to get rid of IPv4 that adds double work of dual stacking and let IPv6-only networks to consume IPv4-only network resources: viewtopic.php?f=2&t=42614
ABSOLUTELY no need for NAT under ipv6 ......

NAT has spoiled everyone .... what is needed is far wider adoption of ipv6 and its PROPER implementation. Yes its been very slow but that is about to change since the US Government will be ipv6 depended by 2025 then no one will have any other choice but to CONFORM,
 
4903000
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Re: Feature Request: IPv6 NAT support

Thu Sep 17, 2020 9:48 am

I support to add this feature,
in some network enviroment(6in4 isatap etc.) only have one /64 ipv6 address,we need ipv6 nat(ip6tables),so please add this feature,thank you very much
 
antmix
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Re: Feature Request: IPv6 NAT support

Wed Jan 06, 2021 1:40 pm

+1 for IPv6 NAT support
 
jeefo
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Re: Feature Request: IPv6 NAT support

Thu Jan 21, 2021 11:24 am

+1 for NAT support

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