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openthread_border_router: Add NAT64 and TREL support #3357

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merged 5 commits into from
Dec 14, 2023

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@agners agners commented Dec 14, 2023

Add NAT64 network address translation support to allow Thread devices connect to IPv4 hosts. This is optional and disabled by default.

Also add TREL (Thread Radio Encapsulation Link) support which essentially allows two Border Router to forward Thread packets through the backbone (WiFi/Ethernet) link instead of through the radio network. This can be beneficial especially in larger setups with multiple Border Routers.

Also update OTBR to the latest upstream version and some smaller cleanups.

The current version of universal-silabs-flasher has inaccurate version
dependency on gpiod. Use gpiod 1.5.4 by directly installing it.
Enable compile time options for TREL and NAT64. Also add the necessary
iptable rules to make NAT64 working. NAT64 will be disabled by default.
Make sure separately added build dependency get removed again. Drop
unnecessary environment variables.
@agners agners force-pushed the add-nat64-and-trel-support branch from 91214d6 to f26d6bc Compare December 14, 2023 11:01
@agners agners marked this pull request as ready for review December 14, 2023 11:03
Make sure the container exits when the otbr-agent crashes. In this case
the Supervisor should act upon it. Users can use the Supervisor Watchdog
functionality to get the add-on automatically restarted.
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LGTM!

@agners agners merged commit 7f731c8 into master Dec 14, 2023
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@agners agners deleted the add-nat64-and-trel-support branch December 14, 2023 14:28
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2 participants