C. Scott, P. Wolfe, and M. Erwin. Virtual Private Networks, 2nd Edition. O'Reilly, December 1998.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....relays TCP communications beyond a firewall. It is similar to SOCKS and thus incurs the same problems as SOCKS does. RMF requires cumbersome manual configurations to manage machines across multiple subnets and has no naming scheme for private IPs and DHCP clients. Virtual Private Network (VPN)[12] is a mechanism to connect multiple private networks through a public network. For instance, subnets over geographically distributed places share their file system through the Internet. Because packets are relayed through the public network, VPN requires establishing secure connections by using ....

C. Scott, P. Wolfe, and M. Erwin. Virtual Private Networks, 2nd Edition. O'Reilly, December 1998.

....with private networks, but at lower costs made possible by implementing these networks over some type of shared infrastructure. Most often VPN refers to virtual circuits at layer 2 (frame relay, ATM) or to various types of tunneling and encryption technologies at layer 3 (IPSec, firewalls) 3] [4]. As the pricing for internet connectivity goes far below that of classic Frame Relay and ATM circuits, there has been increasing market desire to replace leased circuits by the Internet as the transport for corporate and inter corporate private networks. These Internet VPNs have been the ....

C. Scott, P. Wolfe, and M. Erwin, Virtual Private Networks,O'Reilly, 1998.

....server virtualization [16] The Sago project focuses on the development of resource virtualization techniques for wide area networks to support overlay networks with user customizable specifications along the performance, reliability, and functionality dimensions. Virtual private network (VPN) [32] is a technology that leverages public networks to extend and connect corporate intra nets, with the main focus on the security and ease of deployment of island connecting tunnels. However, VPN does not address QoS and reliability issues of these tunnels. Because of the great commercial success of ....

Scott, C., Wolfe, P., Erwin, M., Virtual Private Networks, O'Reilly & Assoc., Sebastapol, CA, 1998.

....IP Header Payload ESP Header ESP Trailer ESP Auth Figure 3. IPsec using ESP in tunnel mode The use of tunnel mode also allows us to use the SNS nodes as gateways routing packets from private LANs (like the one in the SNMP example in Figure 1) to remote workstations or other SNS nodes [Scot98]. A Secure Station for Network Monitoring and Control 9 3.2.4 Simplicity We attempted to keep the complexity of the SNS platform as low as possible for the following reasons: A complex design is difficult to verify and control. This implies that maintaining the security posture of the ....

Scott, Charlie, Paul Wolfe and Mike Erwin, "Virtual Private Networks," O'Reilly & Associates, Inc. 1998.

....communication. Virtual private networks (VPNs) are services that support such a construct; rather than building a new physical network on the group of nodes that must be connected, bandwidth in the underlying network is reserved for communication within the group, forming a virtual sub network [7, 8, 20]. Setting up such a virtual private network gives rise to a collection of basic optimization problems. Since bandwidth must be reserved at a cost, we would like to reserve as little as necessary to support the expected communication. At the same time, the VPN must be flexible enough to support a ....

Charlie Scott, Paul Wolfe, Mike Erwin, and Andy Oram. Virtual Private Networks. O'Reilly, 1998.

....Avenue, Murray Hill NJ 07974. Email: rastogi bell labs.com. Bell Labs, 600 Mountain Avenue, Murray Hill NJ 07974. Email: yener bell labs.com. 1 nodes that must be connected, bandwidth in the underlying network is reserved for communication within the group, forming a virtual sub network [7, 8, 21]. Setting up such a virtual private network gives rise to a collection of basic optimization problems. Since bandwidth must be reserved at a cost, we would like to reserve as little as necessary to support the expected communication. At the same time, the VPN must be flexible enough to support a ....

Charlie Scott, Paul Wolfe, Mike Erwin, and Andy Oram. Virtual Private Networks. O'Reilly, 1998.

....of the experiments, the peak consumed bandwidth on the links was less than 50 Mb sec. We assume that the client server network hop is physically secure and that security attacks are not initiated from within the organization, as is a common assumption with intranets or virtual private networks [Scott et al. 98] Consequently, clients do not perform a digital signature check for each transferred class, but instead rely on the source host address for authentication. 4.1 Application performance In this section, we compare distributed virtual machines to their monolithic counterparts and show that the ....

C. Scott, P. Wolfe and M. Erwin. Virtual Private Networks. O'Reilly, December 1998.

....cannot be trusted, since outside parties may observe interactions and inject arbitrary messages. Consequently, systems that require a trusted environment are limited to trusted enclaves, including, for example, organizational intranets and trusted sites connected through virtual private networks [72]. Overall, it is unlikely that any of the distributed systems discussed in this section will scale gracefully across a global network without modi cations. Besides the important problems raised for Shasta (its memory interface) and Isis (as a CATOCS system) all these systems fundamentally limit ....

Charlie Scott, Paul Wolfe, and Mike Erwin. Virtual Private Networks. O'Reilly, second edition, December 1998.

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C. Scott, P. Wolfe, and M. Erwin. Virtual Private Networks, 2nd Edition. O'Reilly, December 1998.

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