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Re: LVS only allows 2 connections...?

To: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: LVS only allows 2 connections...?
From: Lars Marowsky-Bree <lmb@xxxxxxx>
Date: Tue, 21 Nov 2000 09:13:27 +0100
On 2000-11-20T21:44:41,
   iceam@xxxxxxxxxx said:

> The route output for the real servers is as follows: 
> For real 1: 
> real1.server.ne *            255.255.255.255  UH 0 0 0 eth0 
> 10.1.1.0        *            255.255.255.0    U  0 0 0 eth0 
> 127.0.0.0       *            255.0.0.0        U  0 0 0 eth0 
> default         director.ser 0.0.0.0          UG 0 0 0 eth0 

Okay, the director is your default gateway, and you are using masquerading,
and you have everything on the same ethernet segment if I didn't miss
anything.

My guess would be that the load balancer sends ICMP redirects to the clients,
saying "Hey, you can reach that machine directly at this MAC address" - this
shouldn't happen ;), but is a bug in the ipchains masquerading code.

What do your arp -a tables look like?

You can disable this with 
echo 0 >/proc/sys/net/ipv4/conf/all/send_redirects 
echo 0 >/proc/sys/net/ipv4/conf/eth0/send_redirects 

and see whether that helps.

Sincerely,
    Lars Marowsky-Brée <lmb@xxxxxxx>
    Development HA

-- 
Perfection is our goal, excellence will be tolerated. -- J. Yahl



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