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Re: hard wired solution to arp problem

To: Joseph Mack <mack@xxxxxxxxxxx>
Subject: Re: hard wired solution to arp problem
Cc: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Julian Anastasov <uli@xxxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 24 Nov 1999 18:36:07 +0200 (EET)

On Wed, 24 Nov 1999, Joseph Mack wrote:

> New solution: hard wire the MAC address of the VIP on the director
> into the router's arp table. In my case I don't have a router, and
> my client connects directly to the director. I have a file /etc/ethers
> with the entry

        This is a good solution but for configurations with one standalone
LVS box. To support other LVS boxes which can take control when the main
LVS box is down You have to change /etc/ethers each time in the router and
in the all possible hosts on the LAN which can talk to VIP. For real
servers without this feature (arp_invisible), i.e. non-Linux boxes, which
always reply to "who-has VIP tell ME" may be this is the only solution -
to feed all routers and other hosts on the LAN with permanent ARP entries
and to change them when the current LVS box is changed. Not so easy :)

Regards,

Julian Anastasov


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