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Hello Friends,
I was able to do it by using PF_PACKET option and form the entire packet (ie ethernet+ip+udp).
What ever checksum i give for ip is not getting modified now.

Thanks a lot for your...

Hello,
I'm getting the following error when running "ethtool -K eth0 rx off tx off"
Cannot set device rx csum settings: Operation not supported.

Thanks in Advance.

Regards,
Aamir

Hello Friends,
I'm constructing the IP Packets by using the RAW Sockets. If I give any value for VER/TTL/Protocol the packet is being transmitted with that particular values.
But in case of IP...

Hello!
What you can try out is: have a huge circular buffer for example say around 6144 (6KB) , you can experiment with the size!!
What i mean by circular is have two pointers, start_ptr and...

I think, read and write are the most low level system calls. All the other function like fread and fwrite again uses some low level function to do their work.
I think, using read for reading a...

Hello Friends,
I have one doubt regarding LSRR (Loose Source and Record Route) IP option.
Whether IPv4 optoins will be processed only by Router or they can be processed by any PC within the...

Thanks Dheeraj,
That book is very useful.
Another thing, any idea about how to set Don't Fragment flag in IP Packet??

Thanks in Advance.

Regards,
Aamir

Hello Friends,
I'm involved in test the UDP/IP source code.
As you might be knowing, IPv4 provides several options: like Loose Source and Record Route (LSRR), Strict Source and Record Route (SSRR)...