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ZyXEL Communications 100 Series, 200 Series manual 348

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Chapter 19 Firewall

348
348	ZyWALL USG 100/200 Series User’s Guide

Contents

User’s Guide www.zyxel.com Page About This User's Guide Page Document Conventions Page Safety Warnings Page Contents Overview Page Table of Contents Page Page Page Page Page Page Part III: Firewall Part IV: VPN Page Page Page Page Page Page Page Page Part X: Maintenance, Troubleshooting, & Specifications Part XI: Appendices and Index List of Figures Page Page Page Page Page Page Page Page Page Page Page Page Page List of Tables Page Page Page Page Page Page Page PART Getting Started Page Introducing the ZyWALL 1.1 Overview and Key Default Settings 1.2 Front Panel LEDs 1.3 Management Overview 1.4 Starting and Stopping the ZyWALL Page Features and Applications 2.1 Features Page 2.2 Packet Flow 2.3 Applications 2.3.2 SSL VPN Network Access 2.3.3 User-AwareAccess Control 2.3.4 Multiple WAN Interfaces 2.3.5 Device HA Page Web Configurator 3.1 Web Configurator Requirements 3.2 Web Configurator Access Page 3.3 Web Configurator Main Screen 3.3.2 Navigation Panel Page Page Page 3.3.3 Main Window 3.3.4 Message Bar Page Page Wizard Setup 4.1 Wizard Setup Overview 4.2 Installation Setup, One ISP 4.3 Step 1 Internet Access 4.3.2 Ethernet: Static IP Address Assignment 4.3.3 Step 2 Internet Access Ethernet Page 4.3.4 PPPoE: Auto IP Address Assignment 4.3.5 PPPoE: Static IP Address Assignment Page 4.3.6Step 2 Internet Access PPPoE 4.3.7 PPTP: Auto IP Address Assignment Page Page 4.3.8 PPTP: Static IP Address Assignment 4.3.9Step 2 Internet Access PPTP 4.3.10 Step 4 Internet Access - Finish 4.4 Device Registration 4.5 Installation Setup, Two Internet Service Providers Page 4.6 VPN Setup 4.7 VPN Wizards 4.8 VPN Express Wizard - Remote Gateway 4.8.1 VPN Express Wizard - Policy Setting 4.8.2 VPN Express Wizard - Summary 4.8.3VPN Express Wizard - Finish 4.8.4 VPN Advanced Wizard 4.8.5 VPN Advanced Wizard - Remote Gateway 4.8.6 VPN Advanced Wizard - Phase Page Page 4.8.7 VPN Advanced Wizard - Phase 4.8.8 VPN Advanced Wizard - Summary 4.8.9 VPN Advanced Wizard - Finish Page Page Configuration Basics 5.1Object-basedConfiguration 5.2 Zones, Interfaces, and Physical Ports 5.2.2Default Interface and Zone Configuration 5.3Terminology in the ZyWALL 5.4 Feature Configuration Overview 5.4.2Interface 5.4.3 Trunks 5.4.4 IPSec VPN 5.4.5 SSL VPN 5.4.6 L2TP VPN 5.4.7 Zones 5.4.8 Device HA 5.4.9 DDNS 5.4.10 Policy Routes 5.4.11Static Routes 5.4.12 Firewall 5.4.13 Application Patrol 5.4.14Anti-Virus 5.4.15 IDP 5.4.16 ADP 5.4.17 Content Filter 5.4.18 Anti-Spam 5.4.19 Virtual Server (Port Forwarding) 5.4.20HTTP Redirect 5.4.21ALG 5.5 Objects 5.6 System Management and Maintenance 5.6.3 Licensing Registration 5.6.4 Licensing Update 5.6.5 Logs and Reports 5.6.6 Diagnostics Page Tutorials 6.1 How to Configure Ethernet Interfaces and Port Roles 6.1.2 How to Configure the OPT Interface for a Local Network Page 6.1.3 How to Configure Port Roles 6.2 How to Configure a Cellular Interface Page 6.3How to Set Up a WLAN Interface 6.3.2How to Create the WLAN Interface Page 6.3.3 How to Set Up the Wireless Clients to Use the WLAN Interface Page Page Page Page Page Page Page Page Page 6.4 How to Set Up an IPSec VPN 6.4.2 How to Set Up the VPN Connection 6.4.3 How to Set Up the Policy Route for the VPN Tunnel 6.4.4How to Configure Security Policies for the VPN Tunnel 6.5 How to Configure User-awareAccess Control 6.5.3How to Set Up User Authentication Using the RADIUS Server 6.5.4 How to Set Up Web Surfing Policies With Bandwidth Restrictions Page 6.5.5 How to Set Up MSN Policies 6.5.6How to Set Up Firewall Rules 6.6How to Configure Load Balancing 6.6.1How to Set Up Available Bandwidth on Ethernet Interfaces 6.6.2How to Configure the Load Balancing in the WAN Trunk 6.7 How to Configure Service Control Page Page 6.8 How to Allow Incoming H.323 Peer-to-peerCalls 6.8.1 How to Turn On the ALG 6.8.2 How to Set Up a Virtual Server Policy For H.323 6.8.3 How to Set Up a Firewall Rule For H.323 6.9 How to Use Device HA 6.9.1 Before You Start 6.9.2How to Configure Device HA on the Master ZyWALL Page 6.9.3How to Configure the Backup ZyWALL 6.9.4 How to Deploy the Backup ZyWALL 6.9.5How to Check Your Device HA Setup 6.10 How to Allow Public Access to a Server 6.10.2 How to Configure a Virtual Server Page Page Status 7.1 Overview 7.2The Status Screen Page Page Page 7.2.1 The CPU Usage Screen 7.2.2 The Memory Usage Screen 7.2.3 The Session Usage Screen 7.2.4 The VPN Status Screen 7.2.5 The DHCP Table Screen 7.2.6 The Port Statistics Screen 7.2.7 The Port Statistics Graph Screen 7.2.8 The Current Users Screen 7.2.9 The Cellular Status Detail Screen Page Registration 8.1 Overview 8.2The Registration Screen Page Page 8.3 The Service Screen Page Signature Update 9.1 Overview 9.2 The Antivirus Update Screen Page 9.3 The IDP/AppPatrol Update Screen 9.4 The System Protect Update Screen Page Page Network Page Interface 10.1 Interface Overview 10.1.2 What You Need to Know About Interfaces Page 10.2The Interface Status Screen Page Page 10.3 The Port Role Screen 10.4 The Ethernet Summary Screen 10.4.1 The Ethernet Edit Screen Page Page Page Page Page Page 10.5 Interface Wizards 10.5.2 Interface Wizard: WAN Type 10.5.3 Interface Wizard: Non-WANOPT Interface Setup 10.5.4 Interface Wizard: WAN Zone and IP Address Assignment 10.5.5 Interface Wizard: WAN ISP Connection Settings Page 10.5.6 Interface Wizard: Summary (Non-WAN) 10.5.7 Interface Wizard: Summary (WAN) Page 10.6 The PPP Interfaces Screen 10.6.1 PPP Interface Edit Screen Page Page Page 10.7 Cellular Configuration Screen (3G) Page 10.7.1 Cellular Add/Edit Screen Page Page 10.8 Cellular Status Screen Page 10.9 WLAN Interface General Screen Page 10.9.1 WLAN Add/Edit Screen Page Page Page Page Page 10.9.2 WLAN Add/Edit Screen: WEP Security 10.9.3 WLAN Add/Edit Screen: WPA-PSK/WPA2-PSKSecurity 10.9.4 WLAN Add/Edit Screen: WPA/WPA2 Security Page 10.10 WLAN Interface MAC Filter Screen 10.11 WLAN Interface Station Monitor Screen 10.12 VLAN Interface Screen Page 10.12.1 Configuring the VLAN Summary Screen 10.12.2 Configuring the VLAN Add/Edit Screen Page Page Page Page 10.13 Bridge Interface Screen 10.13.1 Configuring the Bridge Summary Screen 10.13.2 Configuring the Bridge Add/Edit Screen Page Page Page 10.14 Auxiliary Interface Screen Page 10.15 Virtual Interface Screen Page 10.16 Interface Technical Reference Page Page Page Trunks 11.1 Overview WAN1 3 WAN2 LAN Page 11.2The Trunk Summary Screen 11.2.1 The Trunk Edit Screen Page 11.3 Trunk Technical Reference Page Policy and Static Routes 12.1 Policy and Static Routes Overview 12.1.1What You Can Do in the Policy and Static Route Screens 12.1.2What You Need to Know About Policy and Static Routing 12.2Policy Route Screen Page 12.2.1 Policy Route Edit Screen Page 12.3 IP Static Route Screen 12.3.1 Static Route Add/Edit Screen 12.4 Policy Routing Technical Reference NAT and SNAT Port Triggering Maximize Bandwidth Usage Routing Protocols 13.1 Routing Protocols Overview 13.2 The RIP Screen 13.3 The OSPF Screen Page Page 13.3.1Configuring the OSPF Screen 13.3.2 OSPF Area Add/Edit Screen Page 13.4 Routing Protocol Technical Reference Page Page Page Zones 14.1 Zones Overview 14.2 The Zone Screen 14.2.1 The Zone Edit Screen Page DDNS 15.1 DDNS Overview 15.2 The DDNS Screen 15.2.1 The Dynamic DNS Add/Edit Screen Page 15.3 The DDNS Status Screen Page Virtual Servers 16.1 Virtual Servers Overview 16.2The Virtual Server Screen 16.2.1 The Virtual Server Add/Edit Screen Page 16.3 NAT 1:1 and NAT Loopback Examples NAT 1:1 Example Page Page Page NAT Loopback Example Page Page Page HTTP Redirect 17.1 Overview 17.2 The HTTP Redirect Screen 17.2.1 The HTTP Redirect Edit Screen Page ALG 18.1 ALG Overview 18.1.2 What You Need to Know About ALG Page 18.2 The ALG Screen Page 18.3 ALG Technical Reference Page Page ART Firewall Page Firewall 19.1 Overview 19.1.2 What You Need to Know About the Firewall Page 19.1.3Firewall Rule Example Applications Page 19.1.4 Firewall Rule Configuration Example Page Page 19.2 The Firewall Screen Page Page 19.2.2 The Firewall Edit Screen Page Page VPN Page IPSec VPN 20.1 IPSec VPN Overview 20.1.2What You Need to Know About IPSec VPN 20.1.3Before You Begin 20.2The VPN Connection Screen Page 20.2.1 The VPN Connection Add/Edit (IKE) Screen Page Page Page Page 20.2.2 The VPN Connection Add/Edit Manual Key Screen Page Page 20.3 The VPN Gateway Screen 20.3.1 The VPN Gateway Add/Edit Screen Page Page Page Page 20.4 The VPN Concentrator Screen 20.4.1 The VPN Concentrator Add/Edit Screen 20.5 The SA Monitor Screen Page 20.6 IPSec VPN Background Information IKE SA Overview Page Page Page Page Regular Expressions in Searching IPSec SAs IPSec SA Overview Page Page Page Page Page SSL VPN 21.1 Overview Page 21.2The SSL Access Privilege Screen Page 21.3 The SSL Connection Monitor Screen 21.4 The SSL Global Setting Screen Page 21.5 Establishing an SSL VPN Connection Page Page SSL User Screens 22.1 Overview 22.2 Remote User Login Page 22.3The SSL VPN User Screens 22.4 Bookmarking the ZyWALL 22.5 Logging Out of the SSL VPN User Screens Page SSL User Application Screens 23.1 SSL User Application Screens Overview 23.2 The Application Screen Page SSL User File Sharing 24.1 Overview 24.2The Main File Sharing Screen 24.3 Opening a File or Folder 24.3.1 Downloading a File 24.3.2 Saving a File 24.4 Creating a New Folder 24.5 Renaming a File or Folder 24.6 Deleting a File or Folder 24.7 Uploading a File L2TP VPN 25.1 Overview Page 25.2L2TP VPN Screen 25.3 L2TP VPN Session Monitor Screen Page Page L2TP VPN Example 26.1 L2TP VPN Example 26.2Configuring the Default L2TP VPN Gateway Example 26.3Configuring the Default L2TP VPN Connection Example Page 26.4 Configuring the L2TP VPN Settings Example 26.5Configuring the Policy Route for L2TP Example 26.6Configuring L2TP VPN in Windows XP and Page Page Page Page Page 26.6.2 Configuring L2TP in Windows Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Application Patrol Page Application Patrol 27.1 Overview 27.1.2What You Need to Know About Application Patrol Page Page Page 27.1.3Application Patrol Bandwidth Management Examples Page Page 27.2 Application Patrol General Screen Page 27.3 Application Patrol Applications 27.3.1 The Application Patrol Edit Screen Page 27.3.2 The Application Patrol Policy Edit Screen Page 27.4 The Other Applications Screen Page 27.4.1 The Other Applications Add/Edit Screen Page 27.5 Application Patrol Statistics 27.5.2 Application Patrol Statistics: Bandwidth Statistics 27.5.3Application Patrol Statistics: Protocol Statistics Page Page Anti-X Page Anti-Virus 28.1 Overview 28.1.2 What You Need to Know About Anti-Virus 28.2 Anti-VirusSummary Screen Page 28.2.1 Anti-VirusPolicy Add or Edit Screen Page 28.3 Anti-VirusBlack List 28.4 Anti-VirusBlack List or White List Add/Edit 28.5 Anti-VirusWhite List 28.6 Signature Searching Page 28.7 Anti-VirusTechnical Reference Page Page IDP 29.1 Overview 29.2 The IDP General Screen Page 29.2.1 Configuring IDP Policies 29.3 Introducing IDP Profiles 29.4 The Profile Summary Screen 29.5 Creating New Profiles 29.6Profiles: Packet Inspection Page Page 29.6.2 Policy Types 29.6.3 IDP Service Groups 29.6.4 Profile > Query View Screen Page 29.6.5 Query Example 29.7 Introducing IDP Custom Signatures Page 29.8 Configuring Custom Signatures 29.8.1 Creating or Editing a Custom Signature Page Page Page 29.8.2 Custom Signature Example Page Page 29.8.3 Applying Custom Signatures 29.8.4 Verifying Custom Signatures 29.9 IDP Technical Reference Page Page Page ADP 30.1 Overview 30.2 The ADP General Screen 30.2.1 Configuring ADP Policies 30.3 The Profile Summary Screen 30.3.2 Configuring The ADP Profile Summary Screen 30.3.3 Creating New ADP Profiles 30.3.4 Traffic Anomaly Profiles Page 30.3.5 Protocol Anomaly Profiles 30.3.6 Protocol Anomaly Configuration Page 30.4 Technical Reference Traffic Anomaly Background Information Page Page Page Protocol Anomaly Background Information Page Page Page Content Filtering 31.1 Overview 31.1.3Before You Begin 31.2 Content Filter General Screen Page 31.3 Content Filter Policy Add or Edit Screen 31.4 Content Filter Profile Screen 31.5 Content Filter Categories Screen Page Page Page Page Page Page 31.6 Content Filter Customization Screen Page Page 31.7 Content Filter Cache Screen Page 31.8 Content Filter Technical Reference External Content Filter Server Lookup Procedure Page Page Content Filter Reports 32.1 Overview 32.2 Viewing Content Filter Reports Page Page Page Page 32.3 Web Site Submission Page Page Anti-Spam 33.1 Overview Page 33.2Before You Begin 33.3 The Anti-SpamGeneral Screen Page 33.3.1 The Anti-SpamPolicy Add or Edit Screen 33.4 The Anti-SpamBlack List Screen 33.4.1 The Anti-SpamBlack or White List Add/Edit Screen Page 33.5The Anti-SpamWhite List Screen 33.6 The DNSBL Screen Page 33.6.1 The DNSBL Add/Edit Screen 33.7 The Anti-SpamStatus Screen Page Device HA Page Device HA 34.1 Overview 34.2 Device HA General Page 34.3 The Active-PassiveMode Screen 34.3.1 Configuring Active-PassiveMode Device HA Page Page 34.4 Configuring an Active-PassiveMode Monitored Interface 34.5 The Legacy Mode Screen 34.6 Configuring the Legacy Mode Screen Page 34.7 The Legacy Mode Add/Edit Screen Page 34.8 Device HA Technical Reference Legacy Mode ZyWALL VRRP Application Synchronization Page Page Objects Page User/Group 35.1 Overview Page 35.2User Summary Screen 35.2.1 User Add/Edit Screen Page 35.3 User Group Summary Screen 35.4 Setting Screen Page Page 35.4.1 Force User Authentication Policy Add/Edit Screen 35.4.2 User Aware Login Example 35.5 User /Group Technical Reference Page Page Addresses 36.1 Overview 36.2 Address Summary Screen 36.2.1 Address Add/Edit Screen 36.3 Address Group Summary Screen 36.3.1 Address Group Add/Edit Screen Page Page Services 37.1 Overview 37.2The Service Summary Screen 37.2.1 The Service Add/Edit Screen 37.3 The Service Group Summary Screen 37.3.1 The Service Group Add/Edit Screen Page Schedules 38.1 Overview 38.2 The Schedule Summary Screen 38.2.1 The One-TimeSchedule Add/Edit Screen 38.2.2 The Recurring Schedule Add/Edit Screen Page Page AAA Server 39.1 Overview 39.1.3 ASAS 39.1.4What You Can Do Using The AAA Screens 39.1.5What You Need To Know About AAA Servers 39.2 Active Directory or LDAP Default Server Screen 39.2.1 Configuring Active Directory or LDAP Default Server Settings 39.3 Active Directory or LDAP Group Summary Screen Page 39.4 Configuring a Default RADIUS Server 39.5 Configuring a Group of RADIUS Servers Page Page Authentication Method 40.1 Overview 40.2 Viewing Authentication Method Objects 40.3 Creating an Authentication Method Object Page Certificates 41.1 Overview Page 41.1.3Verifying a Certificate 41.2The My Certificates Screen 41.2.1 The My Certificates Add Screen Page Page 41.2.2 The My Certificates Edit Screen Page Page 41.2.3 The My Certificates Import Screen 41.3 The Trusted Certificates Screen 41.3.1 The Trusted Certificates Edit Screen Page Page 41.3.2 The Trusted Certificates Import Screen 41.4 Certificates Technical Reference OCSP Page SSL Application 42.1 Overview 42.2 The SSL Application Screen 42.2.1 Creating/Editing a Web-basedSSL Application Object 42.2.2 Creating/Editing a File Sharing SSL Application Object Page Page System Page System 43.1 Overview 43.2Host Name 43.3 Date and Time Page 43.3.1 Pre-definedNTP Time Servers List 43.3.2 Time Server Synchronization 43.4 Console Port Speed 43.5 DNS Overview 43.5.2 Configuring the DNS Screen Page 43.5.3 Address Record 43.5.4 PTR Record 43.5.5 Adding an Address/PTR Record 43.5.6 Domain Zone Forwarder 43.5.7 Adding a Domain Zone Forwarder 43.5.8 MX Record 43.5.9 Adding a MX Record 43.6 WWW Overview 43.6.1 Service Access Limitations 43.6.2System Timeout 43.6.3 HTTPS 43.6.4 Configuring WWW Page 43.6.5 Service Control Rules 43.6.6 HTTPS Example Page Page Page Page Page Page 43.7 SSH 43.7.1 How SSH Works 43.7.2 SSH Implementation on the ZyWALL 43.7.3 Requirements for Using SSH 43.7.4 Configuring SSH 43.7.5 Secure Telnet Using SSH Examples 43.8Telnet 43.9 FTP 43.9.1 Configuring FTP 43.10 SNMP 43.10.1Supported MIBs 43.10.2 SNMP Traps 43.10.3 Configuring SNMP 43.11 Dial-inManagement 43.12 Vantage CNM Page 43.13 Language Screen Maintenance Troubleshooting, & Specifications Page File Manager 44.1 Overview Page 44.2 The Configuration File Screen Page Page 44.3 The Firmware Package Screen Page 44.4 The Shell Script Screen Page Page Logs 45.1 Overview 45.2What You Can Do In The Log Screens 45.3View Log Screen Page 45.4 Log Setting Screens 45.4.1 Log Setting Summary 45.4.2 Edit System Log Settings Page Page 45.4.3 Edit Remote Server Log Settings Page 45.4.4 Active Log Summary Screen Page Page Reports 46.1 Overview 46.2 The Traffic Statistics Screen Page Page 46.3 The Session Screen Page 46.4 The Anti-VirusReport Screen 46.5 The IDP Report Screen Page 46.6 The Anti-SpamReport Screen Page 46.7 The Email Daily Report Screen Page Page Page Diagnostics 47.1 The Diagnostics Screen Page Reboot 48.1 Overview 48.2 The Reboot Screen Page Troubleshooting Page Page 49.1 Resetting the ZyWALL 49.2 Getting More Troubleshooting Help Product Specifications 50.1 General Specifications Page Page Page Page 50.2 3G or WLAN PCMCIA Card Installation 50.3 Power Adaptor Specifications Page Page Appendices and Index Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Windows XP Windows Windows 98 SE/Me Page Page Page Import ZyWALL Certificates into Netscape Navigator Importing the ZyWALL’s Certificate into Internet Explorer Page Page Page Page Page Wireless LAN Topologies Page Channel RTS/CTS Fragmentation Threshold Preamble Type IEEE 802.11g Wireless LAN Wireless Security Overview IEEE RADIUS Types of EAP Authentication Page Dynamic WEP Key Exchange WPA and WPA2 Page Page Security Parameters Summary Antenna Overview Antenna Characteristics Types of Antennas for WLAN Positioning Antennas Notice Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Copyright Certifications (Class B) Page ZyXEL Limited Warranty Page Page Page Page Page Page Page Index

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