I want to send packets to
127.0.0.1:11311 with packETH. However, there are some problems I cannot solve.
Here's some screenshots: (click to zoom in)
In IPv4 data ("Header length")
Header length of the packets I want to send is 20. However the "Header length" only accepts a one digit number. How can I solve this kind of problem?
The packets I want to send didn't specify "TOS"(In IPv4 data) & "urgent pointer"(In TCP data)
Are these two arguments important when sending TCP packets?
In IPv4 data ("options 0x")
The TCP data options of the packets I want to send is
0x12. However it kept showing an error message:
Wrong length of tcp options field(length mod 8 must be 0)
0x12 mod 8 should be zero, I also tried 0x08, 0x00...etc but the error message didn't change.
I have no idea why this happens, is it relevant to "Header length"?