- How should I present this information? In answer to the question: "Is there an easy software way to set up a VPN for traffic between other datacenters and AppNexus facilities"? Should I bring up a point to point connection?
At the moment AppNexus does not offer a hardware VPN solution. We are researching options. In the meantime, we suggest two free software solutions.
1. Openswan http://www.openswan.org/
Openswan is an open source implementation of IPsec for the Linux operating system and a code fork of the FreeS/WAN project. IPSEC, or Internet Protocol Security, provides strong cryptography to provide both authentication and encryption services. The IPSEC protocols were developed by the IETF (Internet Engineering Task Force). IPSec works on the Network Layer of the OSI Model- securing all data that travels between the two endpoints without an association to any specific application. When connected on an IPSec VPN the client computer is "virtually" a full member of the corporate network- able to see and potentially access the entire network.
2. OpenVPN http://openvpn.net/
OpenVPN is an open source SSL VPN solution. An SSL (Secure Sockets Layer) VPN can be used with a standard web browser. Unlike the more traditional IPsec VPN, an SSL VPN does not require the installation of specialized client software on end users' computers as most web browsers have SSL capabilities built in. It employs the public-and-private key encryption.