Hello all,
is there a good wirte-up on how edit script files in the /etc/sysconfig/network-scripts directory on Centos & to assign multiple IP addresses to the same NIC on boot?
Thanks for any and all help.
Cheers,
Boris.
On 15 Oct 2014 22:12, "Boris Epstein" borepstein@gmail.com wrote:
Hello all,
is there a good wirte-up on how edit script files in the /etc/sysconfig/network-scripts directory on Centos & to assign
multiple
IP addresses to the same NIC on boot?
Thanks for any and all help.
Cheers,
Boris.
Funny timing... I wrote up something on this very topic only very recently:
http://www.hogarthuk.com/?q=node/6
You can do multiple IPs on an interface just by doing multiple ipaddr1 ipaddr2 ipaddr3 ipaddrN with matching netmaskN in the ifcfg file for the interface...
This syntax is compatible with both the network and NetworkManager services.
Hello all,
Thank you for all the great responses.
I meant to reply earlier but it slipped my mind. Sorry.
OK, so according to my experience here is what seems to work.
1) nmtui Using this utility one can do that without delving into the nitty-gritty, it seems.
2) By editing the config file. So let us say we have the NIC eno16780032 If you now edit your config file ( /etc/sysconfig/network-scripts/ifcfg-eno16780032 ) to look like this ------------------------------------------------------------------------------------------ TYPE=Ethernet BOOTPROTO=none DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_FAILURE_FATAL=no NAME=eno16780032 UUID=f303271a-dc5c-4fd6-ac61-73c7b78a5b2b ONBOOT=yes DNS1=10.1.3.5 DOMAIN=insideidc.com IPADDR1=10.1.3.226 PREFIX1=24 HWADDR=00:50:56:A6:11:CA IPADDR=10.1.3.220 PREFIX=24 GATEWAY=10.1.3.10 DNS2=10.1.3.1 DNS3=10.1.3.2 IPV6_PEERDNS=yes IPV6_PEERROUTES=yes ------------------------------------------------------------------------------------------
you are going to have two IP addresses (in this scenario, 10.1.3.220 and 10.1.3.226) assigned to the same NIC.
NOTICE: ifconfig will not show them all, use "ip a show" to see them.
Once again, thank you all for responding.
Cheers,
Boris.
On Wed, Oct 15, 2014 at 5:12 PM, Boris Epstein borepstein@gmail.com wrote:
Hello all,
is there a good wirte-up on how edit script files in the /etc/sysconfig/network-scripts directory on Centos & to assign multiple IP addresses to the same NIC on boot?
Thanks for any and all help.
Cheers,
Boris.
-
Boris Epstein -
James Hogarth