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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/10/21 06:11:41 UTC

[GitHub] [incubator-nuttx] wengzhe opened a new pull request, #7380: arch/sim: fix MTU mismatch on TAP device in host route mode

wengzhe opened a new pull request, #7380:
URL: https://github.com/apache/incubator-nuttx/pull/7380

   ## Summary
   In host route mode (bridge mode disabled), the `d_pktsize` of TAP device is not initialized and will be set to `CONFIG_NET_ETH_PKTSIZE` in `netdev_register`, while the MTU on host side keeps at 1500. Input packets larger than `CONFIG_NET_ETH_PKTSIZE` will be dropped because 'IP packet shorter than length in IP header'.
   This patch fix this issue by reading MTU from host side and set as `d_pktsize`, just the same as what is done in bridge mode.
   
   ## Impact
   Netdriver in sim.
   
   ## Testing
   Tested on Ubuntu 22.04 x86_64, with actual HTTP stream.
   


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[GitHub] [incubator-nuttx] xiaoxiang781216 merged pull request #7380: arch/sim: fix MTU mismatch on TAP device in host route mode

Posted by GitBox <gi...@apache.org>.

xiaoxiang781216 merged PR #7380:
URL: https://github.com/apache/incubator-nuttx/pull/7380


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