Does RUT955 support IPV6 NAT

Networking Solutions
1

Hi, does the RUT955 support NAT for ipv6?

Querying on console give:
ip6tables -t nat -L
ip6tables v1.8.7 (legacy): can’t initialize ip6tables table `nat’: Table does not exist (do you need to insmod?)
Perhaps ip6tables or your kernel needs to be upgraded.

Thank you, best regards.

Support of ipv6 NAT66 for RUT901
3

Greetings,

Could you please clarify which firmware version you’re using?
You can check this under Status → System.

Also, could you please expand on your use case for IPv6 NAT?

Best Regards,
Justinas

4

Hi, we have the Firmware version RUT9_R_00.07.06.16 on a RUT950 (headline is wrong).

It is the question how to deal with a publich ipv6 prefix on the WAN, how this is distributed towards the hosts connected on the bridge site?

A classic ipv4 approach would be to use NAT. That is why, the question if this can be used also for ipv6.

But the above query of ip6tables -t nat -L, shows that is not available?

Did this change with some firmware update?

Thank you, best regards Matthias

5

Greetings,

NAT66 is not supported on our devices. The recommended approach is to use IPv6 Prefix Delegation, which allows the router to receive a larger IPv6 prefix from the mobile operator and assign subnets to the LAN.

You can enable this by navigating to Network → WAN, clicking Edit on the desired interface, and enabling the option under IPv6 settings.

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Please ensure that your mobile operator provides a delegated prefix, not just a single /64 for the WAN interface. A larger prefix (for example, /56) is required so the router can delegate a /64 to the LAN network.

Additionally, make sure the DHCPv6 server is enabled on the LAN interface.

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If NAT66 support is required, the NAT6 kernel module would need to be added via the RutOS SDK. The RutOS SDK can be found here: RUT955 Firmware Downloads - Teltonika Networks Wiki

Please let me know if this helps you out.

Best Regards,
Justinas

6

Thank you, are there plans to add NAT66 into the mainline firmware. If the ISP does not provide Prefix delegation meaning a /56 net, it is not possible to do use the lan segement, w.o. NAT66.

7

Greetings,

Yes, there are plans to add the NAT6 module to the main firmware, however, there is no confirmed timeline at this time.

Best Regards,
Justinas

8

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