Re: [CentOS] Network configuration issue with second public ip on CentOS 6

2015-12-23 Thread Gordon Messmer
On 12/23/2015 06:06 AM, Meikel wrote: I want to add a second public ip (failover ip) to the server and did follow the instructions in the CentOS-section of http://hilfe.ovh.de/AdministrationIpAliasHinzufuegen What you're attempting to do is called "multi-homed routing" and isn't covered very

Re: [CentOS] Network configuration issue with second public ip on CentOS 6

2015-12-23 Thread Valeri Galtsev
On Wed, December 23, 2015 5:00 pm, Louis Lagendijk wrote: > On Wed, 2015-12-23 at 19:04 +0100, Patrick Bervoets wrote: >> >> > Op 23 dec. 2015 om 18:31 heeft Valeri Galtsev > > o.edu> het volgende geschreven: >> > >> > >> > > >> > >> > If I understand IP networking correctly, you only can have >>

Re: [CentOS] Network configuration issue with second public ip on CentOS 6

2015-12-23 Thread John R Pierce
On 12/23/2015 10:04 AM, Patrick Bervoets wrote: Then with the restriction I mentioned you can have alias: > >DEVICE=eth0:0 >IPADDR=x.y.z.a >NETMASK=255.255.255.255 > >Note that "x.y.z." part is the same in both IPs. > >Somebody may correct me if I'm wrong. > >Valeri > >> >> I have used an 10. A

Re: [CentOS] Network configuration issue with second public ip on CentOS 6

2015-12-23 Thread Louis Lagendijk
On Wed, 2015-12-23 at 19:04 +0100, Patrick Bervoets wrote: > > > Op 23 dec. 2015 om 18:31 heeft Valeri Galtsev > o.edu> het volgende geschreven: > > > > > > > > > > > If I understand IP networking correctly, you only can have > > "aliases" of > > the interface appear on the _same_ network seg

Re: [CentOS] Network configuration issue with second public ip on CentOS 6

2015-12-23 Thread Patrick Bervoets
> Op 23 dec. 2015 om 18:31 heeft Valeri Galtsev het > volgende geschreven: > > >> > > If I understand IP networking correctly, you only can have "aliases" of > the interface appear on the _same_ network segment (I'm tempted to say > same class C network) as the main IP of interface, say you

Re: [CentOS] Network configuration issue with second public ip on CentOS 6

2015-12-23 Thread Valeri Galtsev
On Wed, December 23, 2015 8:06 am, Meikel wrote: > Hi folks, > > I have a server at Soyoustart.com (which is a brand of OVH). I run > CentOS 6.7 and have problems with network configuration. > > I want to add a second public ip (failover ip) to the server and did > follow the instructions in the C

Re: [CentOS] Network configuration issue with second public ip on CentOS 6

2015-12-23 Thread Ulf Volmer
On 12/23/2015 03:06 PM, Meikel wrote: $ cat /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 BOOTPROTO=static IPADDR=xx.xx.xx.xx NETMASK=255.255.255.0 ONBOOT=yes GATEWAY=xx.xx.xx.254 $ cat /etc/sysconfig/network-scripts/ifcfg-eth0:0 DEVICE=eth0:0 BOOTPROTO=static IPADDR=yy.yy.yy.yy NETMASK

[CentOS] Network configuration issue with second public ip on CentOS 6

2015-12-23 Thread Meikel
Hi folks, I have a server at Soyoustart.com (which is a brand of OVH). I run CentOS 6.7 and have problems with network configuration. I want to add a second public ip (failover ip) to the server and did follow the instructions in the CentOS-section of http://hilfe.ovh.de/AdministrationIpAlia