-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Greetings Andrew McGill, : I want to use the netmask 255.255.255.255 to insulate (not quite : isolate) machines on a shared subnet from each other. This works : just fine on win XP, but Linux iproute will not acccept the : gateway address in one step -- neither on the command line nor : via DHCP: Try using the onlink nexthop flag for your route: # ip route add onlink default via 192.168.1.17 This marks the route for entry even though the local routing table may not have a route to the nexthop destination. In your case, this is a valid parameter, and should prevent the need for you to add the host route only to remove it. : So why did we need that host route? You need the host route to the destination as a simple sanity check. - From the perspective of the kernel, there's no route to 192.168.1.17 if the IP bound to your interface is a /32. When you add the route, the sanity check succeeds. Essentially, you are suppressing this sanity check by using the onlink parameter, which says "Yes, I know there's no route to IP 192.168.1.17 out this interface, but I know the IP is there on this link layer anyway, so set the route anyway and stop griping."* Good luck, - -Martin * RTNETLINK answers: Network is unreachable - -- Martin A. Brown http://linux-ip.net/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: pgf-0.72 (http://linux-ip.net/sw/pine-gpg-filter/) iD8DBQFFWnH+HEoZD1iZ+YcRAsu2AKDixJF7A0LMClN8snQVq1zk9DV4dQCeIW7R HMtOMud8Kt5yQLskMK7HwDY= =PVyl -----END PGP SIGNATURE----- _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
