[GitHub] [nuttx] wengzhe opened a new pull request, #7747: net/nat: Add support for ICMP Error Message

[GitBox <gi...@apache.org>]

wengzhe opened a new pull request, #7747:
URL: https://github.com/apache/nuttx/pull/7747

   ## Summary
   Support ICMP Error Messages in NAT
   
   Note:
   An ICMP error message contains an inner packet with ip&port on different place (src vs dst).  
   For example, an inbound ICMP would be like this:
   ```
   |          IP HDR: SRC = Peer IP,       DST = External IP |
   |        ICMP HDR: ERROR MSG                              |
   | <Origin> IP HDR: SRC = External IP,   DST = Peer IP     |
   | <Origin> L4 HDR: SRC = External Port, DST = Peer Port   |
   ```
   
   ## Impact
   Support ICMP Error Messages in NAT
   
   ## Testing
   Same method as NAT (docs under Documentation/reference/os/nat.rst), now traceroute works.
   


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[GitHub] [nuttx] xiaoxiang781216 merged pull request #7747: net/nat: Add support for ICMP Error Message

[GitBox <gi...@apache.org>]

xiaoxiang781216 merged PR #7747:
URL: https://github.com/apache/nuttx/pull/7747


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