Haomin Zhu writes: > well, i meet a problem when i'm trying to make a program which do the things > like cmd "route add net dest_net_addr gw_addr -interface". i use the "struct > rt_msghdr" to save the routing information, and pass them to kernel routing > table by socket.
Are you _sure_ you want "-interface" and not "-ifp"? The former creates an interface route, which will result in your system sending ARP requests for non-local destinations, as though you'd plumbed a new interface and configured the subnet locally. It's at best a hack. To do the same thing as "route add ... -interface," simply turn off RTF_GATEWAY in your rtm_flags. > i am sure that i assigned right ifindex value to the rt_msghdr. > what's wrong with my program? or are there some other method to implement > this cmd? > please help me. Assuming you're interested in the output interface and not ARP behavior, I think what you want here is RTA_IFP. This 'address' entry uses AF_LINK (struct sockaddr_dl), and you set sdl_index to the ifIndex of interest. -- James Carlson, Solaris Networking <[EMAIL PROTECTED]> Sun Microsystems / 1 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677 _______________________________________________ networking-discuss mailing list [email protected]
