From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Ray Leventhal
<snip> >> if you'd explain, I'd be grateful. >> > > You will need to add the routes for the other subnet in your routing > table as such. > > route add -net XX.XX.XX.0 netmask 255.255.255.0 eth0 > > I believe there is a place to add static routes in one of the startup > scripts (besides rc.local), but forget where it is, I think if you > configure ifcfg-eth0:X sub-interfaces scripts ifup will create these > routes. > > -Ross > > > Hi Ross et al,
I'm getting an error on adding the route. The machine's base IP is in the xx.xx.16.x /24. The additional IPs are in another /24. Base is physical, the others are virtual hosts.
The error on adding routes is: route: netmask doesn't match route address Usage: route [-nNvee] [-FC] [<AF>] List kernel routing tables route [-v] [-FC] {add|del|flush} ... Modify routing table for AF.
route {-h|--help} [<AF>] Detailed usage syntax forspecified AF. route {-V|--version} Display version/author and exit.
-v, --verbose be verbose -n, --numeric don't resolve names -e, --extend display other/more information -F, --fib display Forwarding Information Base(default) -C, --cache display routing cache instead of FIB
<AF>=Use '-A <af>' or '--<af>'; default: inet List of possible address families (which support routing): inet (DARPA Internet) inet6 (IPv6) ax25 (AMPR AX.25) netrom (AMPR NET/ROM) ipx (Novell IPX) ddp (Appletalk DDP) x25 (CCITT X.25)
I know i'm probably being thick here, and I do appreciate the assistance. What am I missing?
Thanks again so very much, ~Ray
Hmmm, tested it here and it worked for me.
Are all networks defined on that interface /24?
Here is what I did here:
eth0 already configured for 10.1.1.225/24
[root@mfg-nyc-iscsi2 snmp]# ifconfig eth0:0 192.168.1.134 netmask 255.255.255.0 [root@mfg-nyc-iscsi2 snmp]# route add -net 192.168.1.0 netmask 255.255.255.0 eth0 [root@mfg-nyc-iscsi2 snmp]# netstat -r Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 192.168.1.0 * 255.255.255.0 U 0 0 0 eth0 10.1.1.0 * 255.255.255.0 U 0 0 0 eth0 172.16.24.0 * 255.255.255.0 U 0 0 0 bond0 172.16.25.0 * 255.255.255.0 U 0 0 0 bond1 169.254.0.0 * 255.255.0.0 U 0 0 0 eth0 default rt1.nyc.mfg.prv 0.0.0.0 UG 0 0 0 eth0 [root@mfg-nyc-iscsi2 snmp]#
-Ross
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