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On Mon, 24 Dec 2007, David Shwatrz wrote:
Joseph,
Thanks for your answer !
but all you're looking for is an address that will
deliver packets locally.
I just want to verify that I understand correctly; suppose the real
server is a web server. Suppose we configure its lo:0 as the VIP
address. Does it mean that it will get requests on the
VIP address and will send Responses from the real device (say eth0)
with the IP on eth0 as source IP ? (since the loopback lo:0 we
configured as the VIP is only in order to deliver packets locally, as
you said)?
the replies will be routed through the real device.
Joe
Regards,
DS
Regards,
On Dec 24, 2007 4:42 AM, Joseph Mack NA3T <jmack@xxxxxxxx> wrote:
On Sun, 23 Dec 2007, David Shwatrz wrote:
My question is : suppose I have 2 NICs on each real
server. Is there any advantage of configuring the VIP on
the loopback device against configuring it on eth1 ?
should configuring the VIP on eth1 work ?
In the early days (<=2.2) any device on the realserver was
OK for the VIP (eg dummy0, eth1). I haven't checked since
then, but all you're looking for is an address that will
deliver packets locally. Since then the linux kernel has
gotten a lot more anal/precise about such things and much
that we used to be able to do in 2.0.x doesn't work anymore
and I can't see any reason why the old behaviour was wrong.
So it's reasonable to think that eth1 should work, but I
haven't checked it for recent kernels
Joe
--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!
--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!
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