Secured Remote access solution(dial up) for 200 branches

[paneer.selvam]

Around 150 non networked branches has connected to WAN network. k wants to

setup its own email facility through a secure dial-up access.

Project Objectives

To provide banks email facility for non-networked branches.

To provide infrastructure & support for Email connectivity for non-networked

branches through secure centralized dialup remote access services (RAS) at

our Data centre with redundant set-up at our DRC site.

We need also to reduce the cost of STD at the branches; hence a suitable

plan as

[#2]

You can use some kind of tunnelling mechanism like GRE if you want, but IPSec is best if you want to encrypt your traffic. You can also think about L2TP if you want to reduce STD costs, but it depends on a service provider who will provide the dial infrastructure and set up tunnels to your central site.