[dns-operations] Too Open (Was: OpenDNS makes your Internet work better
brad at stop.mail-abuse.org
Fri Jul 14 10:30:05 UTC 2006
At 1:34 AM -0400 2006-07-14, John Payne wrote:
> I don't pretend to read minds. However, unicast does not restrict
> the number of machines behind a single IP either.
At the level of an individual site, no -- you can put as many
machines as you want behind those L4 load-balancing switches, well at
least up to the number that your switches can support. And you can
have a large number of L4 load-balancing switches that all serve the
same service IP address, using internal routing tricks with OSPF and
But without anycast, my understanding is that there is no way to
share a given service IP address across multiple separate and
distinct sites, each with their own upstream service providers or
routing partners, etc....
Brad Knowles, <brad at stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin (1706-1790), reply of the Pennsylvania
Assembly to the Governor, November 11, 1755
Founding Individual Sponsor of LOPSA. See <http://www.lopsa.org/>.
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