Hi All,
I have some questions lwIPs. My embeded system do not has LAN inteface, and
I only use PPP on GPRS to get network environement.
I found dns_init will be called before netif ready? (there is UDP bind in
dns init)
1> if network is not ready, will this bind cause crash?
PPP will get the two DNS server in negotiate,
2> how could I set the two new DNS server to the system?
I tried dns_setserver(...), in PPP callback.
My lwIP and PPP porting code are working in the windows environment, but
current code meet crash in our embeded device.
Our device is bigendian, and I already redefine the BYTEORDER in cc.h
3> Is there any other suggestion for my crash possibity. ?
Our system is unable to make debug, so I could only read the log.
My test is
1 If I enable dns_init, in lwip_init, the crash is caused in dns_init.
so I think the crash may caused by udp binded in the unavaiable network
interface.
2. if i remove teh dns_init in the lwip_init, the ppp negotiate happend.
The two DNS IP address is goted, but crashed in sigup. May be in
network inteface APIs. (remove)
The crash stops me these days.
lee
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