how does VPN work

Question

how does VPN work

Anonym · Accepted Answer

VPN Topologies:
- Hub & Spoke
- Point-Point
- Full Mesh

VPN Protocols:
- IPSEC ; framework or collection of protocols to achieve confidentiality/Integrity/ Authentication
- PTP : GRE (Tunnel) & PPP(Authentication) , Insecure hence not used much
- L2TP: Bridge two remote LANs, Insecure
- SSL (TLS): built-in most web browsers hence no need for client softwares

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Anonym · Answer

VPN has main 2 Types or categories : 
Site to Site VPN : Connect Remote site to HQ / another site over internet
Remote Access VPN: Connect Remote user on end device (PC/Mobile) to HQ/ another site over the internet.

Anonym · Answer

A virtual private network (VPN) : creating private network over any public network like internet. VPNs mask IP address in packet . It's done through Tunneling solutions (IPSEC / SSL/ GRE)

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