Virtual IP failover.

My system running on Redhat 7.1 (kernel 2.4.18)

I would like to know is there a open source s/w that allow Virtual IP
failover ?

Here is what I want to do. On my machine I've 2 NICs, physical IP for
NIC1 is 10.10.2.1 and another for NIC2 is 10.10.3.1. NIC1 is connected
to Switch1 and NIC2 is connected to Switch2. Refer diagram below :

+-My Redhat Machine-+
| |
| 10.10.2.1(NIC1) --+----------- Switch 1
| |
| 10.10.3.1(NIC2) --+----------- Switch 2
+-------------------+
Virtual IP 10.10.1.1

I want to assign a Virtual IP(10.10.1.1) to this Redhat Machine. The
virtual ip will be assigned to NIC1 when it starts up. In the event
that if Switch1 has died due to power failure or h/w failure, I want
the virtual ip(10.10.1.1) to be removed from NIC1 and be assigned to
NIC2.

Is there an open source s/w to do this for my OS platform ? May I know
the name. Thank you.

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kh teoh <(E-Mail Removed)> wrote:
> My system running on Redhat 7.1 (kernel 2.4.18)

Pretty old kernel, with dozens of bugs/security problems, better
upgrade asap.

> I would like to know is there a open source s/w that allow Virtual IP
> failover ?

> Here is what I want to do. On my machine I've 2 NICs, physical IP for
> NIC1 is 10.10.2.1 and another for NIC2 is 10.10.3.1. NIC1 is connected
> to Switch1 and NIC2 is connected to Switch2. Refer diagram below :

> +-My Redhat Machine-+
> | |
> | 10.10.2.1(NIC1) --+----------- Switch 1
> | |
> | 10.10.3.1(NIC2) --+----------- Switch 2
> +-------------------+
> Virtual IP 10.10.1.1

> I want to assign a Virtual IP(10.10.1.1) to this Redhat Machine. The
> virtual ip will be assigned to NIC1 when it starts up. In the event
> that if Switch1 has died due to power failure or h/w failure, I want
> the virtual ip(10.10.1.1) to be removed from NIC1 and be assigned to
> NIC2.

> Is there an open source s/w to do this for my OS platform ? May I know
> the name. Thank you.

Should be possible using bonding failover/load balancing, just
take a look at /usr/src/linux/Documentation/networking/bonding.txt
(needs kernel sources installed), just make sure your network
equipment supports bonding, might need configuration.

Good luck

- --
Michael Heiming (GPG-Key ID: 0xEDD27B94)

Remove +SIGNS and www. if you expect an answer, sorry for
inconvenience, but I get tons of spam.
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(E-Mail Removed) (kh teoh) wrote in message news:<(E-Mail Removed). com>...
> My system running on Redhat 7.1 (kernel 2.4.18)
>
> I would like to know is there a open source s/w that allow Virtual IP
> failover ?

Some interesting reading here:

http://www.kernel.org/pub/linux/kern...ng/bonding.txt