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
235
VPN
Shared Secret Field Description
When the Authentication Method is set to Shared Secret, you can enter a secret that applies to all
VPN tunnels (both the IPsec and L2TP/IPsec protocols) to successfully authenticate and create a
valid connection.
Configure the following parameter:
Secret
Remote Next Hop The IP address of the router/gateway that will forward data packets to the
IOLAN (if required). The router/gateway must reside on the same subnet at the
remote VPN.
Field Format: IPv4 or IPv6 address
Remote
Host/Network
Address
The IP address of a specific host or the network address that the IOLAN will
provide a VPN connection to. If the IPsec tunnel is listening for connections
(
Boot Action set to Add), and the field value is left at 0.0.0.0, any VPN peer
with a private remote network/host that conforms to RFC 1918 (10.0.0.0/8,
172.16.0.0./12, 192.168.0.0/16) will be allowed to use this tunnel if it
successfully authenticates.
Field Format: IPv4 or IPv6 address
Remote IPv4
Subnet Mask
The subnet mask of the remote IPv4 network. Keep the default value when you
are configuring a host-to-host VPN connection.
Default: 255.255.255.255
Remote IPv6 Prefix
Bits
The prefix bits of the remote IPv6 network. Keep the default value when you
are configuring a host-to-host VPN connection.
Default: 0
Boot Action Determines the state of the VPN network when the IOLAN is booted.
Data Options:
z Start—Starts the VPN network, initiating communication to the remote
VPN.
z Add—Adds the VPN network, but doesn’t initiate a connection to the
remote VPN.
z Ignore—Maintains the VPN network configuration, but the VPN network
is not started and cannot be started through the IPsec command option.
When defining peer VPN gateways, one side should be defined as
Start
(initiate) and the other as
Add (listen). It is invalid to define both gateways as
Add. VPN connection time can take longer when both gateways are set to
Start, as both sides will attempt to initiate the same VPN connection.
Default: Start
When the Authentication Method is set to Shared Secret, enter the case-
sensitive secret word.This applies to all VPN tunnels (IPsec and L2TP/IPsec).
Field Format: Maximum of 16 characters, spaces not allowed