Reply To: Create New Ethernet Packet problem

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#6369

pavankvnaidu
Participant

I can’t say what exactly may be wrong with your code, proofreading someones code is beyond support obligations, however here is the simple sample code which is confirmed to work:

Your sample code is working infact, I did the same test before I try to send UDP packet it works fine but when I try to send UDP/TCP its not going out.
I suspect I am doing something wrong in following line of code.

iph.ip_len = htons (sizeof(iphdr) + sizeof(udphdr) + datalen); 

Is it the correct way of calculating the IP Length?

Is there any chance of other sniffers can sniff the packet and WinPkFilter can’t sniff?
If so, I would like to know in what instance it may happen?

Thank you.

Pavan.