Question : UDP socket, IP_TOS and IP_OPTIONS

Hello all!

I am writting an app under winXP.
I have a UDP socket (actually, i use RTP), but i need to put informations into the IP header.
Another programmer is writing a code running on a router, and he needs this informations.
So he asked me to use the TOS byte, or to set options.
i tried using setsockopt to set TOS, but according to my sniffer, it doesn't change at all.
Then i tried to modify the options, but i have no idea about the format of this field.
(i tried a simple "setsockopt(...,...,IP_OPTIONS,&mybyte,1)" but by soft stopped sending packets.)

I guess i could use raw packets, but i don't think i have enough time to rebuild my network base classes (the app is quite complex)

if anyone can help me...


Regards,

Raph

Answer : UDP socket, IP_TOS and IP_OPTIONS

Raph,

unfortunately as far as I'm aware this is the only way :(

Phil.