ZyXEL Communications ZYWALL OTPV2 - Manual

ZyWALL OTPv2
Support Notes
Revision 1.10
December, 2010
Written by CSO

ZyXEL –ZyWALL OTPv2 Support Notes
All contents copyright © 2010 ZyXEL Communications Corporation.
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Table of Contents
1. Introduction....................................................................................................................................................... 3
2. Server Installation............................................................................................................................................. 7
2.1 Pre-requisites.......................................................................................................................................... 7
2.2 Installation on Windows Server 2003 Enterprise Service Pack 1 ...................................................... 7
2.3 Installation on Windows Server 2008 R2........................................................................................... 23
3. OTP Authentication to an OTP-protected Network via SSL VPN over ZyWALL USG................................. 42
3.1 ZyWALL USG Configuration ................................................................................................................. 43
3.2 SafeWord Server Configuration ........................................................................................................... 46
3.3 Verify OTP via Login from the Remote PC .......................................................................................... 50
4. OTP Authentication to an OTP-protected Network via IPSec VPN Client over the ZyWALL USG ............ 51
4.1 ZyWALL USG Configuration ................................................................................................................. 52
4.2 SafeWord Server Configurations ......................................................................................................... 55
4.3 ZyWALL IPSec VPN Client Configuration ............................................................................................ 59
4.4 Verify OTP via Login from the VPN Client........................................................................................... 61
5. OTP Troubleshooting...................................................................................................................................... 63

ZyXEL –ZyWALL OTPv2 Support Notes
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1. Introduction
One-Time Password (OTP) Authentication
One-Time Password (OTP) is an optimum security technology that enables a server to authenticate you
based on a password that is unique every time you try to access a protected network.
Two-Factor Authentication
Two-factor authentication is an optimum security methodology, because it requires something you have
(your ZyWALL OTP Token) and something you know (your secure password or PIN). A two-factor system
is far more secure than using just a password, since many skilled hackers can quite easily access
password-only protected computers and networks. The illustration shows the concept of Two-Factor
authentication.
User PIN and Token code
User PIN is what you know and Token code is what you have.

ZyXEL –ZyWALL OTPv2 Support Notes
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ZyWALL OTP Products Components
ZyWALL OTP, which includes the ZyWALL OTP Token and SafeWord 2008, provides secure verification of
identity to remote Virtual Private Network (VPN) and Local Area Network (LAN) users.
SafeWord 2008 installation includes:
-SafeWord Core Server
Database server
Administration server
Authentication engine
-Management console (integrated in Windows Server AD)
-RADIUS Agents (IAS clients)
SafeWord Core Server
The SafeWord Core Server consists of 3 main components:
-Database server (MySQL) –installed by default. The SafeWord database serves as the repository for
token records independent of the management mode. It stores the Token serial numbers and Token
seed used to generate OTP. The database server listens on port 5010 by default and only the
Administration service and Authentication engines can query it directly.

ZyXEL –ZyWALL OTPv2 Support Notes
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-Administration server –runs administration services and performs tasks initiated by administrators
or users. Updates the SafeWord database and synchronizes SafeWord database data in configurations
with MMC console and User Center. Also performs replication of changes between peers. It is listening
on port 5040 by default.
-Authentication engine (AAA) –runs the authentication engine that verifies that the passcode supplied
with an access request is correct for the token assigned to a specific user. It listens on port 5031 by
default.
Management Console (AD)
The Management console integrated in Microsoft AD is the interface used to directly update the database
via the SafeWord Administration Service.
You can use this to import Tokens (add Token serial numbers to SafeWord database) or backup and
restore Token data.
It also lets you view and manage all imported Tokens.

ZyXEL –ZyWALL OTPv2 Support Notes
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RADIUS Agent
The OTP RADIUS agent contains a configuration file specifying where the SafeWord server holds the user
repository and the Authentication service. It verifies that the passcode supplied with an access request is
correct for the token assigned to a specific user.
An agent can be installed only if it is supporting (base) software components exist. Otherwise the agent
will not appear for selection in the installation components window. For example, the RADIUS server
agent can only be installed when the IAS has already been set up.

ZyXEL –ZyWALL OTPv2 Support Notes
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2. Server Installation
2.1 Pre-requisites
Before starting to install the SafeWord server, user needs to verify:
-Hardware requirements of the system
CPU –Pentium IV or AMD @ 1.8 GHz (min), 2 GHz (recommended)
RAM –1 GB (min), 4 GB (recommended)
Disk space –3 to 5 GB (min)
-Software requirements of the system
Server OS –32 or 64-bit Windows Server 2003/2008 or Windows Server 2008 R2
Have a working Active Directory environment
Have IAS server installed for RADIUS authentication
2.2 Installation on Windows Server 2003 Enterprise Service Pack 1
Step1. Prepare the Active Directory
-Click on Start > Manage Your Server to open the installation wizard. Click “Add or remove a role”to
configure it.

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-Select to install the Domain Controller (Active Directory).
-Fill in the full DNS name for the new domain.
-Click Next to continue the installation process. When the process is done, Active Directory will be
installed and ready.

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Step2. Prepare the IAS Server
-Click Start > Control Panel > Add or Remove Programs > Windows Components Wizard > Networking
Services > Internet Authentication Service to install the component.
-After the installation, you can execute it through Start > Administrative Tools > IAS.

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Step3. Check pre-requisites before Install
Network prerequisites:
-32 or 64-bit Windows Server 2003 with Service Pack 1.
Note: Windows 2008 Core is not supported. Windows 2003/2008 Small Business Server is not supported.
-Active Directory populated with users.
Note: A Domain Controller is required for use with Active Directory.
-Internet access (to receive important product updates not on your installation CD)
Component prerequisites:
-Active Directory Users and Computers Management Console
.Net Framework 2.0 or greater installed
This component is only available when the installation machine is part of a domain
MMC 3.0 or greater installed (for Server 2003, user can download it from http://support.microsoft.com/kb/907265)
Note: Port 5040 must be open between the remote ADUC server and the server running the Admin Service. You may customize
this port.
-IAS/NPS Agent
IAS must be functioning and configured for RADIUS authentication (policies, secret keys, firewall ports, and user
permissions must be set correctly, and users must be able to successfully authenticate to IAS) before installing this
Agent.
Port 1812 must be open in any firewalls between the RADIUS clients and the IAS Server.
Step4. Install SafeWord 2008 server
In this section, we will walk through the system installation process. For the up to date user manuals,
please check SafeNet’s website. The link is: http://www.aladdin.com/safeword/docs/2008.aspx
Below is a flow chart-type snapshot of the installation process and the step-by-step installation. Users
can check for more detailed information in chapter 2 “Installing and Activating SafeWord 2008”of
SafeWord 2008 Administration Guide on the SafeNet website.