Server User Manual
Table Of Contents
- SDS/SCS/STS/MDC User’s Guide
- Table of Contents
- Preface
- Introduction
- Hardware and Connectivity
- Configuration Methods
- Getting Started
- Using DeviceManager and WebManager
- Network Settings
- Configuring Serial Ports
- Introduction
- Serial Ports
- Serial Port Profiles
- Common Tabs
- Console Management Profile
- TruePort Profile
- TCP Sockets Profile
- UDP Sockets Profile
- Terminal Profile
- User Service Settings
- Printer Profile
- Serial Tunneling Profile
- Virtual Modem Profile
- Control Signal I/O Profile
- Modbus Gateway Profile
- Power Management Profile
- Remote Access (PPP) Profile
- Remote Access (SLIP) Profile
- Custom Application Profile
- Port Buffering
- Advanced
- Configuring Users
- Configuring Security
- Configuring I/O Interfaces
- Configuring Clustering
- Configuring the Option Card
- Configuring the System
- Controlling the RPS, I/O Channels, and IPsec Tunnels
- System Administration
- Introduction
- Managing Configuration Files
- Downloading IOLAN Firmware
- Calibrating I/O
- Setting the IOLAN’s Date and Time
- Rebooting the IOLAN
- Resetting the IOLAN to Factory Defaults
- Resetting the SecurID Node Secret
- Language Support
- Downloading Terminal Definitions
- Resetting Configuration Parameters
- Lost Admin Password
- Applications
- RADIUS and TACACS+
- SSL/TLS Ciphers
- Virtual Modem AT Commands
- Pinouts and Cabling Diagrams
- Setting Jumpers
- I/O Wiring Diagrams
- Utilities
- Accessories
- Troubleshooting
- Introduction
- Hardware Troubleshooting
- Communication Issues
- DeviceManager Problems
- Host Problems
- RADIUS Authentication Problems
- Login Problems
- Problems with Terminals
- Unknown IP Address
- DHCP/BOOTP Problems
- Callback Problems
- Language Problems
- Modem Problems
- PPP Problems
- Printing Problems
- Long Reboot Cycle
- SSL/TLS
- I/O Models
- IPv6 Issues
- Contacting Technical Support
- Glossary
- Index
Configuring a Virtual Private Network
340 IOLAN SDS/SCS/STS/MDC User’s Guide, Version 4.0
Configuring a Virtual Private Network
You can configure the IOLAN to act as a Virtual Private Network (VPN) gateway using the IPsec
protocol. Any of the following scenarios can be configured using one IOLAN and a host/server
running IPsec software or two IOLANs, each acting as the VPN gateway. All the examples have
NAT
Traversal (NAT_T)
enabled, since both VPN gateways are running through routers.
IOLAN-to-Host/Network
The following example shows how to configure an IPsec tunnel between serial devices connected to
the IOLAN and a host/network.
NAT Traversal (NAT_T) is enabled in this example (on both sides)
because the VPN tunnel is going private network to public network to private network. This example
uses an RSA signature for the authentication method, so the steps required to configure the
authentication are in this example.
Remote VPN
Gateway
172.16.45.1
Internet
192.168.45.12
192.168.45.87
External IP Address
196.15.23.56
172.16.45.99
192.168.45.99
External IP Address
199.24.23.88
Router
Router
Left
Right
192.168.45.45
IPsec Tunnel--Encrypted Data
Unencrypted
Data
Unencrypted
Data
1. Configure the IPsec tunnel in the IOLAN: