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VPNs Illustrated: Tunnels, VPNs, and IPsec Jon C. Snader
Publisher: Addison-Wesley Professional

ISBN: 032124544X OCLC: 63390377. Virtual private networks (VPNs) based on the Internet instead of the traditional leased lines offer organizations of all sizes the promise of a low-cost, secure electronic network. Having discussed the motivations behind FLEX VPN (http://wp.me/p1loe7-fJ) and presented information about positioning of Cisco IOS VPN solutions (http://wp.me/p1loe7-gy), it's now time to jump to some practical scenarios. VPNs illustrated : tunnels, VPNs, and IPsec. When the VPN connection is established between 2 parties (between a VPN client and VPN gateway or between 2 VPN gateways), a secured virtual tunnel will be created with capability to encrypt the data (so no hacker can see the data content ), preserve data integrity (no data change during transmission) and ensure the communication only happen between that 2 authenticated parties. Language: English Released: 2005. Publisher: Addison-Wesley Professional Page Count: 480. By Jon C Snader Type: English : Book Publisher: Harlow : Addison-Wesley, ©2006. This sample configuration is also useful to illustrate the overall structure of a FLEX VPN policy. This type of profile is tied to the interface (similar to what we did for a crypto-map) by means of the tunnel protection ipsec profile command. The remote access VPN is supported by L2F, PPTP, L2TP and IPsec tunneling protocols. GO VPNs Illustrated: Tunnels, VPNs, and IPsec. Thanks again for taking the time to illustrate all this. VPN client: In this post will be a Google Nexus One with Android 2.2.1-2.3.4 using an IPsec PSK tunnel with the l2tp secret not enabled.