ankohuu opened a new pull request, #18819:
URL: https://github.com/apache/nuttx/pull/18819
## Summary
Update the NAT documentation to make the validation flow easier to follow.
The existing document already contains useful details, but the test setup
is hard to read for beginners.
- In particular, the NuttX-side commands and Linux host commands can be
confused
- Some commands are redundant
- Some required steps are missing
- The Internet access example is not necessary for NAT behavior itself
Changes:
- Simplify the validation case to use a local topology with Linux network
namespaces.
- Add an ICMP test case
- Add the required explanations around the NuttX iptables command and
interface roles
- Remove the IPv6 validation case from this doc, since the NAT66 flow
follows the same structure as the NAT44 case.
## Impact
Update document.
## Testing
[nat.pdf](https://github.com/user-attachments/files/27191863/nat.pdf)
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