View Full Version : Raw socket programming on Ubuntu

April 29th, 2007, 11:16 PM

I have installed Ubuntu Drake 6.0 under Vmware (VMware is a virtual machine installed on windows XP). I need to write a C program using raw sockets

when i execute the code:


i get the result: operation not supported. is it that raw sockets are not supported on Ubuntu or I need to change some parameters.

thanx atkt

April 30th, 2007, 02:24 AM
Hi I decided to post the answer to my own question to ppl. maybe it is obvious for ppl familiar wid Linux but not for me since i m using it for the first time. login as root first and then run the program that uses raw sockets. and then ur prog shud run. thanx

April 30th, 2007, 04:37 AM
Or you could use a port that's >1024.

April 30th, 2007, 06:49 AM
@kano no that's not true, raw sockets have nothing to do with portnumbers. You'll typically use a raw socket when you're building your own IP or ethernet packets.

When you read <i>man 7 raw</i>

Only processes with an effective user ID of 0 or the CAP_NET_RAW capa‐
bility are allowed to open raw sockets.

May 1st, 2007, 07:23 AM
My bad, I read that too hastily :)