Hi, I'm sorry I didn't describe the problem clearly.
There are two conditions (the target board is connected to one PC with Ethernet, Wirshark and NetAssist are ran on the PC side): (1) if I use the debug tool (Lauterbach Trace32), connect the debug tool to the target board, download the program through it, and then run the program,the gratuitous arp message is only sent less than five times (captured by Wirshark). Everything goes well. (2)but if I run the program without debug tool, for example, disconnect the debug tool and power on the target board, this arp message is sent one by one without stop. The problem comes, the board can't receive the message from the software NetAssist on the PC side any more. The network traffic is congested with this such message. Best Cheng Fang ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ------------ Gratuitous ARP is a good thing, it tells the router and all other equipment what is your IP... I had a lot of trouble to activate it in another stack ;-) Alain ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ------------Hi, nothing is wrong. See Request for Comments: 5227 http://tools.ietf.org/search/rfc5227 2.1. Probing an Address Best Martin On Sun, Jan 26, 2014 at 3:55 AM, fangcheng_gmail <[email protected]> wrote: > > I'm try to implement LWIP on a board based on the MCU MPC5604E from > Freescale. > > I set the IPv4 address to 169.254.1.60 manually (not by DHCP or > AUTOIP), the board direct connects to one PC with IP address > 169.254.1.20. (Network gateway is 169.254.1.1) > > After each power on reset, the boards always sends gratuitous ARP > continuously. > > The attached picture shows this condition. > > What's wrong? > > > Best regards, > > Cheng Fang > > > _______________________________________________ > 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
