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ccna book odom.office varies depending on the location of the central office. Home users usually use asymmetric DSL (ADSL), which has higher download speeds than upload speeds. Symmetrical DSL (SDSL) has the same upload and download speeds and is more suitable for small to medium sized business applications. Cable is the same as DSL in that it can also provide broadband access speeds of 200kbit/s or higher, but unlike DSL, its speed is not affected by the distance to the ISP.speed is not affected by the distance to the ISP. However, cable access is a shared service, so its speed is affected to some extent by the number of users subscribed to the same service.However, cable access is a shared service, so its speed is affected to some extent by the number of users subscribed to the same service. Satellite Internet access speeds can range from 128kbit/s to 512kbit/s, depending on the user's plan. For telecommuting, a laptop or desktop is also essential, and many implementations also require VoIP phones to provide seamless telephony.Many implementations also require VoIP telephony to provide seamless telephony services. Security is a very important issue for companies. Security is an issue for companies. Remote access to company locations is achieved using remote VPN access.8.6.2 Introduction to Remote Access VPN8.6.2.1 Remote Access VPN Options The ubiquity of the Internet, coupled with today's VPN technology, allows organizations to cost-effectively extend their network to anyone, anywhere, at any time.network securely to anyone, anywhere.VPNs have become the logical solution for providing remote access connectivity for a number of reasons. VPNs use customized access rights for individual users (e.g., employees, contract workers, partners) to provide secure communications. VPNs also increase productivity by securely extending company networks and applications while reducing communication costs and increasing flexibility.With VPN technology, employees can say they have their office with them everywhere they go, including access to email and web applications. VPNs also allow contract workers and partners to have restricted access to specific servers, Web pages or files as needed. This allows them to help improve business productivity without compromising network security.There are two main methods for deploying remote access VPNs.