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ike phase 1 and 2

Hi all, can anyone tell me what these phases mean, I know phase 1 is the intial exchange of info between vpn peers, what is phase 2 for ?

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Re: ike phase 1 and 2

IKE phase 1. IKE authenticates IPSec peers and negotiates IKE SAs during this phase, setting up a secure channel for negotiating IPSec SAs in phase 2.

IKE phase 2. IKE negotiates IPSec SA parameters and sets up matching IPSec SAs in the peers.

Narayan

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