Hi, all, I am trying to use Route Socket (AF_ROUTE) to get the interface list on a linux box (Red Hat 6.2 with kernel 2.2.16). The problem now is NET_RT_IFLIST undeclared. I don't know if I want to write this kind of application, should I rebuild a new kernel with more kernel support options on. (My kernel is upgrade from 2.2.5 with linux installor upgrade option). The other problem is the header files in Linux ( name an location) on this seems different wiht UNIX environment introduced by R.Steven's UNIX networking programming. One example is in Linux sysctl(2). Can someone give me some ideas about this problem? Thanks in advance! cheers, wei ============================================================ Wei Qu Graduate Student, Research Assistant Faculty of Computer Science, Dalhousie University E_Mail: wei@cs.dal.ca Home : http://www.cs.dal.ca/~wei/ May you have warm words on the cold evening, a full moon on the dark night, and a smooth road all the way to your door. ============================================================ - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org