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Hi !
I am new to the ipvs world, I never used it and I wish to confirm some
functionnality.
First off, in our setup, our servers are running a mixture of centos/RHEL6
we already have 2 routers in active/active setup with heartbeat, so that the
IP of the main gateway is failed over in the event of a failure.
Excuse my asci art talent, but here's a simplified diagram of our setup :
Internet
|
-------------------------------
| |
| eth0:1.1.1.2 /29 | eth0:1.1.1.3/29
| |
+----------+ +----------+
| routet 1 | | router 2 |
+----------+ +----------+
| |
| vlan10:192.168.110.2/24 | vlan10:192.168.110.3/24
| |
----------------------------------
server network 192.168.110.0/24
So, heartbeat takes care of enabling eth0:0 1.1.1.1 and vlan10:0
192.168.110.1 on their respective netowrk. Next, we have a /27 (1.1.2.0/27
for exemple) bloc that is router to 1.1.1.1 by our isp. In our iptables
file, I setup rules like this :
-A PREROUTING -d 1.1.2.0 -p tcp --dport 80 -j DNAT --to-destination
192.168.110.33
to forward the trafic to the servers. Doing so also enables me to use all 64
addresses of the /27.
Now, looking at the docs for ipvs, I see that I setup a realip to be used on
out externel net (eth0 in my example), and a corresponding ip on the private
one (vlan10). So, I suppose I'll then have to change the way I route trafic
and switch to have the real ip as an alias on the external interface ? Is
there a way to function with iptables like I do now ?
Thanks,
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