----- Original Message ----- From: "BALU Frιdιric" <frederic.balu@xxxxxxxxxx> To: <lartc@xxxxxxxxxxxxxxx> Sent: Πέμπτη, 19 Ιουνίου 2003 10:20 πμ Subject: [LARTC] Making packets be reflected in a router > Hello, > > I use a debian 2.2 server, with 2 ethernet cards. > > For a course, I need to make packets from 192.168.1.0/24 to 192.168.2.0/24 > go through eth0:0(192.168.1.254), another internal IP, again another > internal then out to 192.168.2.0/24 by eth1:0 (192.168.2.254/0). > > Any idea on how to do this (I know this is NOT the mechanism a router may > apply ...) ? > > eth0 : 192.168.1.1 > eth0:0 : 192.168.1.254 > eth0:1 : 192.168.3.254 > eth0:2 : 192.168.5.254 > eth1 : 192.168.2.1 > eth1:0 : 192.168.2.254 > eth1:1 : 192.168.3.254 > eth1:2 : 192.168.5.254 How many times are you going to send this e-mail, until you realize that people in here don't know the answer? Anyways... What you are trying to do, is somewhat impossible. You CANNOT route traffic inside a linux box, between aliased interfaces. You could, using some old kernels, but this feature was removed from the kernel long ago. I remember seeing a patch somewhere but, if I remember correctly, it us outdated. Besides, when a subnet is connected directly on an interface, it is automatically using a metric of 0, which automatically overrides any routing command you may give. Any routing command uses the metric of 1 and above. I wonder what EXACTLY were you supposed to do for the course, to imagine the configuration you mentioned. I am curious... - Giannis Stoilis
