[SOLVED] Adding a second public IP on a VM

[be_tnt]

Hello!

On one of my VMs, I would like to configure multiple public IPs. I tried to add a second one but I can't ping it.

What I have done so far on the VM (centOS 7), I have created ifcfg-eth0:0 under network-scripts:

DEVICE="eth0:0"
BOOTPROTO=static
DEFROUTE=no
ONBOOT=yes
IPADDR=176.31.XX.XXX
NETMASK=255.255.255.255
BROADCAST=176.31.XX.XXX <- same IP than the IPADDR

But if I try to ping the new IP, I got a request timeout (firewall allow ping).

Did I forget something?

Thx!

 

[be_tnt]

Fixed!

Issue was not related to the VM configuration but IPs used are OVH IP failover. When you want to add multiple IPs of the same NIC, you have to ensure to have the same MAC address assigned to all your IPS. This is done through the OVH manager (select your IP -> add virtual MAC -> select an existing one).

In case this could help someone else.

 

[Didier Misson]

Hello
oh, GREAT !
It's so easy but I didn't think to take an "existing MAC" in the OVH manager, to have 2 IPs on the same container (or VM) !
Same MAC for both IPs...
Thanks for this solution.
Merry Christmas

 

[Keith Miller]

Darn I don't use a ProxMox provider I self host at home. But I do want to do the same thing. one IP to one VM and another IP to a 2nd VM both public

 

[maxgdias]

Fixed!

Issue was not related to the VM configuration but IPs used are OVH IP failover. When you want to add multiple IPs of the same NIC, you have to ensure to have the same MAC address assigned to all your IPS. This is done through the OVH manager (select your IP -> add virtual MAC -> select an existing one).

In case this could help someone else.

Great!!!
Its working for me too.

I select same MacAddress in OVH Panel;
I add ip in WHM;
Magic!! Second IP was working in WHM!!!

Thanks !!