Remote Access and VPN Server

You can have multiple incoming lines with a hardware VPN router to manage the incoming and outgoing traffic
If volumes of traffic is not large than you can use a single broad band connection and configure a VPN with NAT- Network address translation. This permits PC's on the LAN to share the single connection to the internet and also provides more security as only known remote users know the IP address of computers within the network.

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The server needs to have a network interface card or network adaptor to help connect the computers within the LAN and connect these individual users to the internet. Network protocols must be installed and routing and remote access information is needed when setting up the connections. Firewalls can be setup during setting up connections and other firewalls can be turned off. Server roles for the VPN connections need to be set up. Knowledge of DHCP-Dynamic Host configuration Protocol and RADIUS is needed to configure your server. You can configure remote access VPN Server to be a part of the active directory domain of the network with DNS and DHCP servers. Another setup is for a VPN server with NAT. Depending on the hardware and architectural choices you make you need to configure the VPN server to authenticate, encrypt and route data from remote users to individual PC on the LAN. Setting up routing for the remote access involves the following steps

Setting up the VPN connection through the network interface card. Enabling the security and firewalls.
IP Address needed for the remote computers are generated and assigned.
Name and Address Translation Services are configured. This process is automatic and also configures the forward name resolution to the DNS Server on the internet.
Address Assignment Range displays the range of addresses that is defined for assignment of any computer on the network that accesses the internet and is defined by the network adaptor.
Carefully review all the remote access policies to make sure that the users are given the needed access and not more.

There are some additional task you may need to address like configuring static packet filters, ports and services, log details for routing protocols, addition or removal of VPN ports (PPTP or L2TP). For the server add certificate rules for encryption like Certification authority or Public Key infrastructure. Remote user's security can also be improved by enabling better authentication methods and higher levels of encryption.

Issues that Require Remote Access

The need to pass crucial information in enterprise network for successful implementation of the ERP network made remote access necessary. Network layer connectivity solutions

The nature of remote access is continuously evolving and is a critical asset in strategic objectives of ERP and CRM. Internet access alternatives are broadening to locations like home, public kiosks, hotels and mobiles and include devices like laptops, smart phones, PDA's etc. The major hassle in promoting and advancing remote access between diverse end points was security and administrative efforts. VPN's seems to be the rapidly evolving answer to WAN's and remote users. Enterprise application software's are also evolving to cater to more complex, business critical, performance demands. Security threats on the network is not limited but becoming more sophisticated and dangerous. Many devices stand between the Internet and corporate VPNs to enhance security features. Also available are many types of machines trying to access VPNs.

VPN vendors are adding many security features to the existing appliance making remote access a more viable option for future enterprise solutions. IPSec is being installed on handheld devices. Wireless remote access VPN is presently a solution for Wi-Fi security. Mobile technologies with broadband capacity are changing the market scenario. EV-DO,EDGE and WiMAX are being adopted by businesses. Mobility of users will increase the issues of security of the mobile and the network (LAN or VPN ). Future enhancement in these wireless technologies would be SSL access to corporate VPN.

Remote Access has been around for a long time. Its use was limited due to security issues. With VPN and associated improvements in security remote access in enterprise business and other business is set for a major boost.

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Issues that Require Remote Access

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