[lwip-users] RE: [lwip] Ping Problem!!

[Earle Clubb]

I had a similar problem with the UDP stuff.  Whenever I received a UDP
packet, the system would crash.  What I found was that my compiler was
ignoring the initialization code for udp_pcbs and pcb_cache in udp.c because
the initialization was done outside of a function.  I simply moved the
initialization code to the inside of udp_init and everything worked fine.

udp.c
-       static struct udp_pcb *udp_pcbs = NULL;
-       static struct udp_pcb *pcb_cache = NULL;

+       static struct udp_pcb *udp_pcbs;
+       static struct udp_pcb *pcb_cache;

udp.c : udp_init
+       udp_pcbs = NULL;
+       pcb_cache = NULL;

Hope this helps!

Earle Clubb

Software Engineer
Valcom, Inc.

E-mail: address@hidden
Voice: (540) 563-2000 ext.253

-----Original Message-----
From: address@hidden [mailto:address@hidden Behalf Of harish
jayaraj
Sent: Tuesday, July 30, 2002 12:16 AM
To: address@hidden
Subject: [lwip] Ping Problem!!


Hello all,
       I have sucessfully ported LwIP.
Ping works fine utill there is some packet on the network which
contain the UDP header, is caught by the Lwip satck. The might be
something like SMB,Wins ect. After the udp packet is caught by the
Lwip the stack stops responding to the ping requests.

Has anyone observed this problem?? Any remedies for this??

Thanks and Regargds,
Harish

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