Hi, I tried compiling a program that uses both libnet and libipq, for libnet I have to include libnet.h and for libipq, libipq.h, but libipq.h includes ip_queue.h, which inturn includes linux/if.h. Also, libnet.h includes net/if.h, now this creates problems during compilation(redefinition of some structures), I had to comment out include<net/if.h> from libnet to compile the program, Has anybody faced this problem, can you suggest me a better way to overcome this that commenting out a line in libnet.h ?? thanks Amit "DISCLAIMER: This message is proprietary to Hughes Software Systems Limited (HSS) and is intended solely for the use of the individual to whom it is addressed. It may contain privileged or confidential information and should not be circulated or used for any purpose other than for what it is intended. If you have received this message in error, please notify the originator immediately. If you are not the intended recipient, you are notified that you are strictly prohibited from using, copying, altering, or disclosing the contents of this message. HSS accepts no responsibility for loss or damage arising from the use of the information transmitted by this email including damage from virus."