On Monday 09 October 2006 4:16 am, Frank Steiner wrote: > But that still doesn't solve the problem: Having eth0:0 allows to add > a special routing entry for that virtual device, just adding a second > IP to eth0 does not. So this doesn't really help.
It's the same physical interface. What ifconfig creates here are not really "virtual devices", like vlans. The :n entries were a hack to work around the old ifconfig interface limitations. The new iproute2 interface is far superior and way more flexible. If you want to add custom routes, see 'man routes' and edit /etc/sysconfig/network/routes, if your device is persistent, or /etc/sysconfig/network/ifroute-<same-id-as-interface> if your device is not persistent. How about an example? Say I have two networks on my physical lan (I actually do at work and at home) 10.1.2.0/24 and 192.168.1.0/24. The IP addresses for the networks are 10.1.2.2 and 192.168.1.2, respectively. I want my default route to be 10.1.2.1, but I want traffic to www.opensuse.org (130.57.4.24) to go through 192.168.1.1. /etc/sysconfig/network/ifcfg-eth-id-00:00:00:00:00:00: BOOTPROTO='static' NAME='My special interface' STARTMODE='auto' USERCONTROL='yes' IPADDR='10.1.2.2/24' IPADDR_OTHER='192.168.1.2/24' /etc/sysconfig/network/routes: 130.57.4.24 192.168.1.1 255.255.255.255 - default 10.1.2.1 - - If the device is transient, you can put your special route in a device-specific file that has the same format as routes. /etc/sysconfig/network/ifcfg-eth-id-00:00:00:00:00:00: 130.57.4.24 192.168.1.1 255.255.255.255 - You can look at your routing table by executing 'ip route'. When the kernel needs to route a packet somewhere, it goes through this table in order until it finds a matching route. For the network I described above, it should look like this: 130.57.4.24/32 via 192.168.1.1 dev eth0 10.1.2.0/24 dev eth0 proto kernel scope link src 10.1.2.2 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.2 default via 10.1.2.1 dev eth0 Hope that helps, -- James Oakley [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
