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OK, again, my config. 1.2.3.4 is the VIP (external IP such as
83.134.81.12)
# The loopback network interface
auto lo
iface lo inet loopback
address 213.203.208.20
netmask 255.255.255.255
broadcast 213.203.208.20
up sysctl -p
auto eth1
iface eth1 inet static
address 172.16.10.5
netmask 255.255.255.0
network 172.16.10.0
broadcast 172.16.10.255
gateway 172.16.10.21
With this config, the real-server uses the director as a gateway
(would bei LVS-NAT, right?). Now I would like the real server not to
use LVS-NAT but answer the requests directly to the clients. So I
guess this would be correct:
# The loopback network interface
auto lo
iface lo inet loopback
address 213.203.208.20
netmask 255.255.255.255
broadcast 213.203.208.20
gateway 213.203.208.2 # the public IP of the director
up sysctl -p
auto eth1
iface eth1 inet static
address 172.16.10.5
netmask 255.255.255.0
network 172.16.10.0
broadcast 172.16.10.255
But this config won't work. Only if I add auto eth0 with a public IP
(but this is exactly the situation that I do not want).
Am 06.02.2008 um 11:27 schrieb Graeme Fowler:
> On Wed, 2008-02-06 at 11:19 +0100, Andreas Altenburg wrote:
>> Yes, i understand. But another question: I have problems configuring
>> the realserver with one internal (real) IP and the VIP on the lo
>> interface (with the director as the gateway of the lo):
>
> OK, step-by-step:
>
>> ifconfig eth1 192.168.0.2 netmask 255.255.255.0 broadcast
>> 192.168.0.255 up
>
> Fine.
>
>> route add -net 192.168.0.0 netmask 255.255.255.0 dev eth1
>
> Fine.
>
>> ifconfig lo:0 <VIP> netmask 255.255.255.255 broadcast <VIP> up
>
> Fine.
>
>> route add -host <VIP> dev lo:0
>
> You don't need this. If the VIP is already local, no route needs
> configuring.
>
> However, I don't see any errors, so I don't understand the problem.
>
>> Where is my mistake? I do not want the real server to have a public
>> IP
>> in the same subnet as the VIP on eth0. My VIP is a public IP. Hope,
>> you will understand my problem ;-)
>
> I'm not sure I do, no.
>
> For -DR, the realserver _needs_ to have the VIP on a loopback (or
> other)
> alias or it won't be able to create response packets.
>
> Graeme
>
>
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