Marc Haber wrote: > On Tue, Aug 09, 2005 at 10:38:21AM +0300, Al Boldi wrote: > > Kernel IP routing table > > Destination Gateway Genmask Flags Iface > > 10.0.0.1 0.0.0.0 255.255.255.255 UH eth0 > > 10.0.1.1 0.0.0.0 255.255.255.255 UH eth1 > > 10.0.0.0 0.0.0.0 255.255.255.0 U eth0 > > 10.0.1.0 0.0.0.0 255.255.255.0 U eth1 > > 10.0.0.0 0.0.0.0 255.0.0.0 U eth0 > > 127.0.0.0 0.0.0.0 255.255.255.0 U lo > > > > Why does the Kernel route a packet from > > 10.0.1.2 netmask 255.0.0.0 out to eth1? > > Neither packet source address nor netmask do affect the routing > decision. It is only done based on the target address. > > ip route list match <target-address> > > is a big helper on systems that have iproute installed. > Thanks! ip route list match 10.0.1.2 reveals: 10.0.1.0/24 dev eth1 proto kernel scope link src 10.0.1.1 10.0.0.0/8 dev eth0 proto kernel scope link src 10.0.0.1 But: ip route list match 10.0.1.2/8 reveals: 10.0.0.0/8 dev eth0 proto kernel scope link src 10.0.0.1 Is it possible to instruct the kernel to use the dest-mask instead of just letting it assume /32 ? - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
