HedongGao opened a new pull request, #17656: URL: https://github.com/apache/nuttx/pull/17656
## Summary Nuttx use IFF_NOARP as a packet config, this is illogical and no longer in line with user habits. Referring to the ARP configuration method of Linux, Nuttx has added the ability to configure ARP on interface. ## Impact Referring to the custom of configuring ARP on Linux interfaces, the 'arp/- app' parameter has been added to the ifconfig command. By default, the interface supports ARP functionality. When the ARP function of an interface is turned off, the net stack will discard ARP messages received from that interface, and the protocol stack will not send messages to the outside through that interface. ## Testing When compiling nuttx, open the ping tool for functional testing. Set up a SIM environment, sim and host can ping each other successfully. After using the command 'ifconfig eth0 -arp', the ping between sim and host failed. The packet capture shows that sim cannot process APR request messages or send ARP request messages. Then use 'ifconfig eth0 arp' to enable arp fuction for eth0， sim and host can ping each other again. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
