Asus SL200 - Manual (Page 34)

Chapter.3.Router.Setup . SL200.User.Manual
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[Phase 1]
“Phase 1”. (Authentcaton). secton. wll. concern. settngs. for.
Authentcaton.Phase.or.Phase.1..It.s.also.called.IKE.Negotaton.
Phase.
Phase 1’s purpose is to negotiate IKE policy sets, authenticate the
peers,.and.set.up.a.secure.channel.between.the.peers..Also.part.of.
Phase.1,.each.end.system.must.dentfy.and.authentcate.tself.to.
the.other.
Operation Mode:.There.are.two.modes.for.Phase.1,.Man.and.
Aggressve..If.select.Man.mode,.the.VPN.Clent.wll.be.actvated.
for.ths.tunnel,.Man.Mode.allows.to.the.VPN.Clent.to.fetch.some.
VPN.Confguraton.nformaton.from.the.VPN.gateway..If.select.
Aggressve.Mode,.the.VPN.Clent.wll.used.aggressve.mode.as.
negotaton.mode.wth.the.remote.gateway..
Encryption:.Encrypton.algorthm.used.durng.Authentcaton.phase.
(DES,.3DES,…)
Authentication:. Authentcaton. algorthm. used. durng.
Authentcaton.phase.(MD5/SHA1)
[Phase2]
“Phase 2”.Secton.concerns.settngs.for.Phase.2..It.s.also.called.
IPSec Configuration.
The. purpose. of. Phase. 2. s. to. negotate. the. IPSec. securty.
parameters.that.are.appled.to.the.traffc.gong.through.tunnels.
negotated.durng.Phase.1.
Encryption:.Encrypton.algorthm.negotated.durng.IPSec.phase.
(DES,.3DES,…)
Authentication:.Authentcaton.negotated.durng.IPSec.phase.
(MD5/SHA1)