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Re: LVS-DR Real Server Loopback Subnet Mask

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: LVS-DR Real Server Loopback Subnet Mask
From: Malcolm Turnbull <malcolm@xxxxxxxxxxxxxxxx>
Date: Thu, 21 Apr 2005 15:26:19 +0100
Brad,

As with all LVS things subject to argument...but
On all platforms apart from windows you want 255.255.255.255 for the loopback i.e. never use. On windows you can get away with 255.255.255.0 IF you use a priority 254 80% of the time.
255.255.255.255 can be used if you mod the registry...
But we've found that 255.0.0.0 will work better 99% of the time because windows by default uses the smallest subnet first for routing
and a class  A will never be used instead of a class C.

Brad Taylor wrote:

If the network I have setup is 192.168.60.x and subnet mash
255.255.255.0 does the loopback interface on the real sever need to be
255.255.255.0 or 255.255.255.255?  I've seen it documented both ways.
Thanks.



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