With ICMP request you might also consider to pad your replies to 64bytes. They could be discarded.
Bastien Le 5 juin 2013 à 18:27, "Pomeroy, Marty" <[email protected]> a écrit : > > Get Wireshark installed, and look at the raw packets at the Linux box. > > Also make sure your checksum configuration is right. > > Marty > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On > Behalf Of Dimax > Sent: Wednesday, June 05, 2013 10:07 AM > To: [email protected] > Subject: [lwip-users] Debugging new driver > > Hi, > I'm done with a coding of a new driver and have started it's debugging. > I have started with ping. > I have a linux box 192.168.16.31 > And my ST32 board with fixed IP configuration 192.168.16.43 > > I'm trying to ping from linux to my board running new driver. > > On linux side I get: > --------------------------- > From 192.168.16.31 icmp_seq=62 Destination Host Unreachable and in > tcpdump sequence of: > 09:00:45.277619 ARP, Request who-has 192.168.16.43 tell 192.168.16.31, > length 28 > 09:00:46.277617 ARP, Request who-has 192.168.16.43 tell 192.168.16.31, > length 28 ... > > On board side (my traces): > ------------------ > 000023.072 ETH:DMA_RX SZ:64 > 000023.072 ETH:DMA_TX SZ:64 > 000024.072 ETH:DMA_RX SZ:64 > 000024.072 ETH:DMA_TX SZ:64 > 000025.080 ETH:DMA_RX SZ:64 > 000025.080 ETH:DMA_TX SZ:64 > 000026.080 ETH:DMA_RX SZ:64 > 000026.080 ETH:DMA_TX SZ:64 > > Looks like a ARP packets arrives to board and are processed by lwIP. > But outcoming packets from board are dropped somewhere. Not sure if they > get out from PHY at all or dropped on receiving linux side. > How would you suggest to debug this? > Thanks. > > _______________________________________________ > lwip-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/lwip-users > > _______________________________________________ > lwip-users mailing list > [email protected] > https://lists.nongnu.org/mailman/listinfo/lwip-users _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
