| 14.1 |  | The PIX Security Appliance Enables a Secure VPN |
| 14.1.1 |  | PIX Security Appliance VPN capabilities |

| The Cisco PIX Security Appliance can secure all network communications from remote offices to corporate networks across the Internet using its standards-based Internet Key Exchange (IKE) and IP Security (IPSec) VPN capabilities. By encrypting data with 56-bit Data Encryption Standard (DES) or optional advanced 168-bit Triple DES (3DES) encryption, sensitive corporate data is protected as it travels across the Internet.

The PIX Security Appliance has several important traits that are listed in Figure .

PIX Security Appliances support a wide range of remote access VPN clients:

- Cisco software VPN clients

- Microsoft Windows
- Linux
- Solaris
- Apple Mac OS X

- Cisco hardware VPN clients

- VPN 3002
- Clients found within Microsoft Windows operating systems
- Point-to-Point Tunneling Protocol (PPTP)
- Layer 2 Tunnel Protocol (L2TP)