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Re: [lwip-users] i don't konw why


From: Wei Bo-Er \(Jason\)
Subject: Re: [lwip-users] i don't konw why
Date: Fri, 26 Nov 2004 14:31:52 +0800

You may check out your network card and it's driver to see if it is word(2 bytes) alignment and you have made the wrong byte as the last byte of the received packet.
 
Bo-Er
----- Original Message -----
From: jack W
Sent: Friday, November 26, 2004 11:31 AM
Subject: [lwip-users] i don't konw why

hi every one 


    i have a problem about icmp.c
  when i ping my board , useing ping 192.168.0.3 l -999 -t  , it failed  its debug info is
"checksum failed for received ICMP echo."

but when i ping the board using ping 192.168.0.3 l -1000 -t . it successed

 i found that when the size of packet is odd bytes if fails  and when it si parity bytes it successes.

 why ?

thank you 





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