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Remote Access for the Enterprise
Yankee Group, The, Sep 2004, Pages: 13
Enterprises need secure, reliable and high-performing remote access for their workforce and they need to extend it to an increasing number of users. They need to provide access to corporate networks and applications for employees and business partners regardless of technology and connectivity.
These needs present a complicated and challenging task for an enterprise. As a result, businesses are turning to carrier-managed offerings to offload the complexity from their IT organization and transition it to a service provider.
This report examines the status of remote access in the enterprise, discusses technology and deployment trends affecting the market, and reviews carrier profiles of leading remote access service providers.
Remote Access Defined
The authors define remote access as secure network and application access
required from a location outside of a networked corporate facility. It can be
accomplished via wireline or wireless connectivity such as broadband cable or DSL, dial-up, Wi-Fi, satellite and wireless modem services. Most remote access users fit into the following categories:
- Remote and mobile workers: These are employees who require access to the
corporate network from remote locations via wired and wireless connectivity using devices such as internet terminals, laptops and PDAs.
- Business partners: These are businesses that require access to a partner’s corporate network, often at the application level. For example, a contract manufacturer might need access to a partner’s supply-chain management applications.
- Branch offices: These include one or more employees working at a small office
outside of the corporate headquarters. Depending on the size and networking
requirements of a branch, it may be better served via a more traditional site-to-site service such as frame relay or an IP VPN. This is especially true as DSL becomes a more widely supported, low-cost form of CPE-based site-to-site IP VPN access.
The two most commonly used secure tunneling methods for remote access are IPsec and SSL. IPsec provides client-based, user-level access to a network. SSL provides application-level access to a network. With SSL, the client is embedded in web browsers (although, if required, a separate client can be used). SSL is often used to extend remote VPN capabilities to non-laptop-carrying users, business partners and users who need access from non-corporate-controlled endpoints such as public internet terminals.
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