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Cisco VPN - IKE Phase 1 Question

tnzaj6782 tnzaj6782 is offline
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Join Date: Mar 2009
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Does anyone knows why peer authentication is performed after D-H Key exchange in IKE Phase 1? Shouldn't it be performed before D-H Key exchange? I mean what is the purpose of deriving D-H key if the peer is not an authenticated peer?
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