I have kind of similar issue. I am trying to assign multiple IP address to a machine with a single NIC and I did follow the instructions from RH. Below are my network files from /etc/sysconfig/network-scripts... ifcfg-eth0 ============ DEVICE=eth0 NM_CONTROLLED=yes ONBOOT=yes HWADDR=00:1C:25:70:06:89 TYPE=Ethernet BOOTPROTO=none DEFROUTE=yes PEERDNS=no IPADDR=192.168.1.103 NETMASK=255.255.255.0 PEERROUTES=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth0" USERCTL=no ifcfg-eth0:1 ============== DEVICE=eth0:1 ONPARENT=yes BOOTPROTO=static IPADDR=192.168.1.119 NETMASK=255.255.255.0 TYPE=Ethernet IPV6INIT=no USERCTL=no Now when I try to bring up the NIC using "ifup eth0:1" - It brings eth0:1 up but brings down eth0. Basically it brings only one of them at a time and no matter which IP is up, "ip addr show" output shows only eth0 even if IP of eth0:1 is up!! I am on RH6...Has anyone seen this behavior? Thanks Monty On Fri, Oct 15, 2010 at 5:38 AM, Euan de Boer <euan.deboer@xxxxxxxxxxxxxxx>wrote: > Hi, > > Sorry if this posts twice (first posting seems stuck awaiting admin > approval). > > I am looking at binding 64 IP addresses to a Redhat 5 server with dual > NIC's. I have followed this guide: > > http://www.xenocafe.com/tutorials/linux/redhat/bind_multiple_ip_addresses_to_single_nic/index.phpand > am able to successfully bind the IP's to the eth0 and eth1, however I > would like to be able to bind them to my bonded interface bond0 to ensure > redundancy. > > My bond0 is as follows: > > # bonded interface for production > DEVICE=bond0 > BOOTPROTO=static > ONBOOT=yes > IPADDR=192.168.1.1 > NETMASK=255.255.255.0 > BONDING_OPTS="mode=4 miimon=10" > > When I create a bond0:0 containing one of the additional IP's like this: > > DEVICE=bond0:0 > BOOTPROTO=static > ONBOOT=yes > > IPADDR=192.168.1.2 > > NETMASK=255.255.255.0 > > > and restart networking the interface does not come up. Manually attempting > to bring the interface up with if config gives me the following error: > > ifconfig bond0:0 up > SIOCSIFFLAGS: Cannot assign requested address > > bond0 itself is completely working, however I just can't seem to add the > additional aliases with my extra IP addresses. > > Does anyone know if what I am trying to do is supported, and if it is, > where > I am going wrong? > > I have googled this extensively today and have not found anything that > explains if this is actually possible, or how to do it, so any ideas are > very welcome! > > Thanks, > > Euan. > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list