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Re: Setting up a one network VS-NAT LVS

To: <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: Setting up a one network VS-NAT LVS
From: "Ivan Figueredo" <idf@xxxxxxxxxxxxxx>
Date: Fri, 19 Jan 2001 10:49:55 -0600
Joe, Julian,

I do seem to be having one problem - I believe that this is related to LVS
as per my one "logical and physical" net setup of LVS, as this was not
happening pre-LVS.

I do not seem to be able to telnet to realserver (192.168.168.3) It times
out. As you may recall, as per man page, on the Director, I did:

------
[root@wee2 httpd]# echo 1 > /proc/sys/net/ipv4/ip_forward
[root@wee2 httpd]# echo 1 > /proc/sys/net/ipv4/ip_always_defrag
[root@wee2 httpd]# ipchains -A forward -j MASQ -s 192.168.168.0/24 -d
0.0.0.0/0

Then I did:

[root@wee2 httpd]# ipvsadmin -A -t 192.168.168.2:80 -s rr
[root@wee2 httpd]# ipvsadm -a -t 192.168.168.2:80 -r 192.168.168.3 -m
-----

FWIW, even with this problem, and even if it cannot be resolved, it was
worth it for me to gain the confidence to get something working *very* fast
and *very* straightforward. For the less advanced networking/TCP-IP people,
this would be a win if it were included in the How-To's, as long as the
proper caveats were given.

I now feel like taking more baby steps...

Ivan


----- Original Message -----
From: "Joseph Mack" <mack.joseph@xxxxxxx>
To: <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Friday, January 19, 2001 8:53 AM
Subject: Re: Setting up a one network VS-NAT LVS


> Julian Anastasov wrote:
>
> >
> >         Hm, I now understand. So, is it really working or there are
> > problems?
>
> Both Ivan and I have got it to work. I assume it's working.
>
>
> > > >     Joe, can you perform tests with two different Class C networks:
one
> > > > for the client, the external DIP and the VIP and one "internal"
network
> > > > for the NAT-ed real servers and the internal director DIP used as
def
> > > > gw in the real servers. Something like the above picture, with
> > > > send_redirects=0. I assume this should work without any problems.
>
> will let you know what happens.
>
> Joe
>
> --
> Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
> contractor to the National Environmental Supercomputer Center,
> mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA
>
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