I'm having an issue where the lwIP stack stops responding completely after an IPscan on the subnet is performed. This spews out a rapid series of ARP requests which, I assume, is flooding the stack's ARP handler. It could be something else causing, but I don't know what yet.
The stack stops responding because the Ethernet MAC stops generating interrupts. lwIPstats() reports an ETHARP drop and lenerr which makes me think the MAC is is not being serviced fast enough. I'm using a modified STR9 demo from FreeRTOS with lwip 1.4.0. My lwipopts.h settings are using the defaults for the most part. Has anyone else ever had this issue? Does it have to do with MAC interrupt servicing or the stack? -Dave _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
