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Re: lvs_dr default gateway problem

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: lvs_dr default gateway problem
From: Joseph Mack <mack.joseph@xxxxxxx>
Date: Tue, 11 Nov 2003 10:29:24 -0500
Justin Albstmeijer wrote:
> 
> >this stuff was nasty to write and the debugging tools aren't great.
> >what does tcpdump show when you try to connect, eg if from the command
> line you do
> ># telnet www.outside.org http
> 
> #telnet www.slashdot.org 80
> Trying 66.35.250.151...
> telnet: connect to address 66.35.250.151: Network is unreachable
> 
> #tcpdump  port 80
> tcpdump: listening on eth0
> [nothing]

the packets aren't even getting out of your realserver. In your
first posting, packets were getting out, but you weren't receiving
any replies.
 
> To simplify the problem (I suspect an iproute2 problem), I dot not run the
> rc.lvs_dr script on the realserver.

on the realserver, the rc.lvs_dr doesn't do a whole lot except running checks.
If you're setting up a 3-Tier realserver, then lots of stuff happens.

> I just remove the default gateway and see if I still can route "http"
> traffic after running the script below.

did you try the script in the HOWTO?

http://www.linuxvirtualserver.org/Joseph.Mack/HOWTO/LVS-HOWTO.3-Tier.html

Joe

-- 
Joseph Mack PhD, High Performance Computing & Scientific Visualization
SAIC, Supporting the EPA Research Triangle Park, NC 919-541-0007
Federal Contact - John B. Smith 919-541-1087 - smith.johnb@xxxxxxx
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