Hello Sorry for a long time before this reply.
Now, I implemet it using socket API refering to the linux port, and until now it can work well. So may be the raw API port has some bugs, or can not be compatible with lwip-1.3.0. Many thanks to you. _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
