ip - Why do we need IPSec VPN rather than SSL? -



ip - Why do we need IPSec VPN rather than SSL? -

ipsec vpn security provided @ network layer next facilities:

authentication info integrity confidentiality anti-replay

but making set more costlier using ssl @ application layer.

for example: http uses ssl talk web server

so, why people utilize vpn?

you pretty much gave reply yourself: encryption on network layer provides security all traffic goes through it, instead of each application having implement own security model.

vpns used in different scenarios typical http request. typically utilize vpns bring together intranet outside , utilize network internal services. doing via vpn means need expose 1 network entry point outside world. otherwise you'd have expose every single service outside world, and implement individual security models each.

ssl ip vpn

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