You need a new IP for each instance.
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Tom
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Thomas A. Moreau, BSc, PhD, MCSE, MCDBA, MCITP, MCTS
SQL Server MVP
Toronto, ON Canada
https://mvp.support.microsoft.com/profile/Tom.Moreau
"SQLGuru_not" wrote in message
We have a cluster running SQL Server 2005 with one instance. We want to
install another instance, will it require another IP address or can we use
the same IP address for the other instance?