User`s manual
Table Of Contents
- 1. Introduction
- 2. Getting Started
- 3. Initial IP Address Configuration
- 4. Web Console Configuration
- 5. System Management Settings
- 6. Introduction and Configuring VPN
- 7. Configuring OnCell Central Management Software
- 8. OnCell Search Utility
- A. Default Settings
- B. Dynamic Domain Name Server
- C. Auto IP Report Protocol

OnCell 5000 Series Introduction and Configuring VPN
6-2
What Are VPNs?
Computers that are part of a VPN use a second, “virtual” IP address to connect to the Internet. Instead of
running across a single private network, some of the links between nodes that are part of a VPN use open
network connections or virtual circuits on a larger network, such as the Internet. With the help of VPNs, cellular
devices acting as a VPN client can initiate a connection with a VPN server. Once the connection is established,
cellular devices can communicate with other network devices on the same private network.
OnCell VPN Specifications
• OnCell IPSec provides security in one scenario with Gateway-to-gateway topology
• OnCell initiates VPN connection to VPN Server
• OnCell IPSec operates in Tunnel mode with IPsec VPN tunnel
¾ Manual Key/ESP, IKE/PSK
¾ DES/3DES/AES128/AES192/AES256 encryption
¾ MD5/SHA1 authentication
• IPsec NAT traversal, Anti-Replay, and PFS (Perfect Forwarding Secrecy).
Example: Gateway to Gateway Network Topology
Figure: Gateway to gateway connection between OnCell and IPSec server