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ZyXEL Communications ZYWALL 35 Support Notes
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ZyW
ALL
35
Security Appliance
Support Notes
V
ersion 4.03
Sep. 2007
2
Table of Contents
Table of Contents
2
Application Notes
12
Seamless Incorporation into Your Network
12
Using Transparent (Bridge Mode) Firewall
12
Internet Connection
17
DHCP Server/Client/Relay + Flexible Port Role Configuration
19
Using Nat/Multi-NAT
23
Optimize Network Performance & Availability
33
Using Dual WAN / Load Balancing and Policy Route
33
Using Dual WAN
34
WAN Backup (Active/Passive Mode)
34
Load Balancing (Active/Active Mode)
43
Using Policy Route
52
Using Bandwidth Management
53
Secure Connections Across the Internet
67
Site-To-Site VPN (Intranet) Scenario
67
Configure Zywalls with Static WAN IP Address
67
Configure Zywall with Dynamic WAN IP Address
68
Configure Zywall Behind NAT Router
70
Mapping Multiple Network Policy to same Gateway Policy
72
Using DDNS for VPN Redundancy
77
Using Certificate for Device Authentication
78
Using Self-Signed Certificates
78
Online Enroll Certificates
82
Offline Enroll Certificates
91
Using Pre-Shared Key for Device Authentication
124
Using VPN Routing between Branches
125
NAT over Ipsec on Zynos
135
Never Lost Your VPN Connection (Ipsec High Availability)
144
How to Configure the VPN HA
145
Access Control and Security VPN Connection (Security Policy Enforcement Ipsec)
147
How to Configure Access Control Rule over VPN
148
How to Configure Security Policy (AV/IDP/AS) over VPN
152
How to Configure Web Filtering Rule over VPN - Content Filter154
154
Zywall Vs 3Rd Party VPN Gateway
155
Sonicwall with Zywall VPN Tunneling
155
Netscreen with Zywall VPN Tunneling
164
Check Point with Zywall VPN Tunneling
178
Fortinet with Zywall VPN Tunneling
213
Remote Access VPN Scenario
227
Using Xauth for User Authentication
228
Zyxel VPN Client to Zywall Tunneling
230
Flexible Wireless Connection and Security
239
Deploy the Zywall WLAN Security Policy
240
Threat Management
244
To Protect Computer Networks against Virus Intrusions and Attacks from Internet
245
To Control IM/P2P Applications Usage to Increase Employee Productivity
251
To Filter Non-Work Related and Unproductive Web Surfing to Mitigate Spyware and Phishing Threats
256
To Eliminate Spam Mails to Block Unwanted Messages Everyday
266
Threat Reports
271
Centralized Management
276
Using Vantage CNM for Management
276
A. Product FAQ
281
A01. What Is the Zywall Internet Access Sharing Router
281
A02. will the Zywall Work with My Internet Connection
281
A03. What Do I Need to Use the Zywall
281
A04. What Is Pppoe
281
A05. Does the Zywall Support Pppoe
282
A07. Why Does My Internet Service Provider Use Pppoe
282
A08. How Can I Configure the Zywall
282
A09. What Can We Do with Zywall
282
A10. Does Zywall Support Dynamic IP Addressing
282
A11. What Is the Difference between the Internal IP and the Real IP from My ISP
282
A12. How Does E-Mail Work through the Zywall
283
A13. Is It Possible to Access a Server Running Behind NAT from the Outside Internet? if Possible, How
283
A14. What DHCP Capability Does the Zywall Support
283
A15. What Are the Capability of Wireless Feature of Zywall
283
A16. What Is the Coverage Range of Wireless in Zywall
283
A20. Can the Zywall Support TFTP over WAN
284
A21. How Can I Upload Data to Outside Internet over the One-Way Cable
284
A22. My Zywall Can Not Get an IP Address from the ISP to Connect to the Internet, What Can I Do
284
A23. What Is BOOTP/DHCP
285
A24. What Is DDNS
285
A25. When Do I Need DDNS Service
286
A26. What DDNS Servers Does the Zywall Support
286
A27. What Is DDNS Wildcard
286
A28. Does the Zywall Support DDNS Wildcard
286
A29. Can the Zywall NAT Handle Ipsec Packets Sent by the VPN Gateway Behind Zywall
286
A30. How Do I Setup My Zywall for Routing Ipsec Packets over NAT
286
A31. What Is STP (Spanning Tree Protocol) /RSTP (Rapid STP)
287
A32. What Is the Flow Zywall Handles Inbound and Outgoing Traffic
287
A35. What Are the Key New Features of Zywall UTM
288
B01. Which Zywall Models Are Eligible to be Upgraded to Run Zynos V4.01
288
B. Firmware Upgrade FAQ
288
B02. Why It's Conditional to Upgrade to Zynos V4.01 for Zywall 70
289
B03. What Is Zynos V3.65 for Zywall 70
289
B04. What Happens if I Wrongfully Upgrade Firmware of a Zywall 70 with Only 32MB of RAM to Zynos V4.01 Directly
289
And Zywall 35
290
B05. What Happened if I Upgrade a Zywall 70 Running Zynos V3.62/3.63/3.64 to V4.01 Directly
290
B06. I am a 32MB Zywall 70 Owner, How Can I Upgrade to Zynos V4.01 Having AV+IDP and as Features
290
B09. after a Successful Firmware Upgrade to Zynos V4.01, What's the Default Setting of AV+IDP, as and CF
290
Joining Your Zywall 70 Trade-In Promotion
290
B11. What's the Downgrade Procedure of Zywall 70 Running Zynos V4.01
291
B12. Can I Downgrade a Zywall 5 or Zywall 35 Running Zynos V4.01 Back to Zynos V3.64 (or Below)
291
C. Turbo Card FAQ
291
C02. Except Zywall Turbo Card Is a Must When Use AV+IDP Service What Exactly I Can Get Benefit from It
292
Zynos V4.01? if Not, When Must I Insert a Zywall Turbo Card into My Zywall Device
292
D. Firewall FAQ
292
D01. What Is a Network Firewall
292
D02. What Makes Zywall Secure
292
D03. What Are the Basic Types of Firewalls
293
D04. What Kind of Firewall Is the Zywall
293
D05. Why Do You Need a Firewall When Your Router Has Packet Filtering and NAT Built-In
294
D06. What Is Denials of Service (Dos)Attack
294
D07. What Is Ping of Death Attack
294
D08. What Is Teardrop Attack
294
D09. What Is SYN Flood Attack
295
D10. What Is LAND Attack
295
D11. What Is Brute-Force Attack
295
D12. What Is IP Spoofing Attack
295
D13. What Are the Default ACL Firewall Rules in Zywall
295
D14. in Zywall, Is DMZ Behind NAT or Not
296
D15. Can I Use both Public and Private IP Addresses on DMZ
296
Zywall
296
D17. How Can I Protect against IP Spoofing Attacks
298
E. Security Service Licenses FAQ
299
E01. What Is Icard
299
E02. Where Can I Buy the Icard and How Much Does It Cost
299
E03. How Many Kinds of Icard Does Zyxel Provide
299
E04. Is each Type of Icard Device Specific
299
E05. What Are the Available Security Service Licenses Which Require Additional Purchase and License Activation in Zynos V4.01
299
E06. What Kind of Icard Should I Buy
300
E07. if I Violate the Mappings Described Above, for Example, Using a Silver Icard for Zywall 35 or Zywall 70, What will Happen
300
E08. Can I Try the Content Filtering Service for Free? How Long Is the Free Trial Period of Content Filtering Service
300
E09. Does Zyxel Provide Customers Free Trial for AV+IDP Service How Long Is It
300
E10. Does Zyxel Provide Customers Free Trial for Anti-Spam Service How Long Is It
301
F. Security Service Activation and Updatefaq
301
F01. Why Do I Have to Register
301
F02. in Addition to Registration, What Can I Do with Myzyxel.com
301
Launch of Zynos V4.00? Which Zywall Models Can be Registered Via Myzyxel.com
302
Previous Registration? What's the Advantage of New Registration Flow over the Previous Registration Flow
302
F05. if I Were New to Myzyxel.com, What Are the Required Fields When I Register My Zywall Device on Myzyxel.com
302
F07. What Is Mysecurityzone
303
F08. What Is Update Server
303
F10. What's the URL for These Service Portals
304
G. Anti-Virus FAQ
304
Deployed the Anti-Virus Software on each Desktop/Laptop
304
G02. Why Does Zywall Bundle Anti-Virus and IDP Feature Together
304
G03. Can I Subscribe to the Anti-Virus Service Alone or IDP Service Alone
304
G04. What Are the Hardware Requirements to Run AV+IDP Security Service
305
AV+IDP Service; but What Exactly I Can Benefit from the Zywall Turbo Card
305
G06. How Do I Keep Signatures of AV+IDP Service Updated
305
G07. How Often Does Zyxel Release Signatures of AV+IDP Security Service
305
Scanned by Anti-Virus, IDP and Anti-Spam Feature in Zywall Zynos V4.0
305
H01. Why Does Zywall Bundle Anti-Virus and IDP Feature Together
306
H02. Can I Subscribe to the Anti-Virus Service Alone or IDP Service Alone
306
H03. What Are the Hardware Requirements to Run AV+IDP Security Service
306
AV+IDP Service; but What Exactly I Can Benefit from the Zywall Turbo Card
306
H05. Could I Duplicate the IDP Feature's Policy Settings from One Zywall Device to Another
306
H06. How Do I Keep Signatures of AV+IDP Service Updated
307
H07. How Often Does Zyxel Release Signatures of AV+IDP Security Service
307
Scanned by Anti-Virus, IDP and Anti-Spam Feature in Zywall Zynos V4.0
307
I01. What's the Difference between Gateway Anti-Spam and Client-Based Anti-Spam Filter such as Microsoft Outlook's
307
I. Anti-Spam FAQ
307
And the Email Receiver Already Got a Part of the Contaminated File in Her/His Laptop or Desktop
308
I03. What Happens When an Email with Large Attachment in Size, E.g 5MB, Is Downloaded Which Has Virus in It
308
Scanned by Anti-Virus, IDP and Anti-Spam Feature in Zywall Zynos V4.0
308
I06. in Zywall's Anti-Spam Feature, What's Your Recommendation to Handle Identified Spam Emails
309
I07. What's the Specification of Anti-Spam Feature in Zynos V4.01
309
I08. How Do I Keep Signatures of Anti-Spam Service Update
309
J03. Can I Specify the Time out Value of the Query Response from Bluecoat Data Center
310
J04. Can I Decide Whether to Forward or Drop the HTTP Response if the Query to Bluecoat Data Center Is Timed out
310
J05. How to Register for Bluecoat Service
310
J06. Why Can't I Make Registration Successfully
310
J07. What Services Can I Get with Trial Registration
311
J08. What Types of Content Filter Does Zywall Provide
311
J09. What Are the Primary Features of Zyxel Content Filtering
311
J10. Who Needs Zyxel Content Filtering? Is Zyxel Content Filtering for Small Companies or for Large Corporations
311
J11. Can I Have Different Policies in Effect for Different Times of the Day or Week
312
J12. How Many Policies Can I Create
312
J13. Can I Create My Own Categories
312
J14. Can I Override (Block or Allow) Certain Urls Regardless of the Rating
312
J15. How Many URL Keywords Does Zywall Support
312
J16. How Do I Keep Database of Content Filtering Service Updated
312
J17. What Is Bluecoat Filter List
312
J18. How Many Ratings Does the Bluecoat Database Contain
312
J19. How Often Does Bluecoat Update the Database
313
J20. How Do I Locate Sites to Block
313
J21. Do Humans Review the Ratings
313
J22. How Can I Do if I Find a WEB Site Is Mis-Categorized
314
J23. How Many and What Categories Do You Provide
314
J24. How Does the Zyxel Content Filtering Handle Dynamically Generated Sites
315
J25. Does Bluecoat Have more than One Data Center? Is the Bluecoat Web Filter Geographically Load Balanced
316
J26. Who Can Generate and View Reports on Bluecoat WEB Site
316
J27. How Can I Get Content Filtering Report
316
J28. Can I Change the Password for Bluecoat Service
316
J30. My Device Can't Get Connected to Http://Myzyxel.com, so I Can't Get into Registration Page. What Should I Check
317
J02. How Many Entries Can the Cache of Web Site Auto Categorization Keep at most
310
J01. What's the Operation between Zyxel Appliance and Bluecoat Data Center
310
J. Content Filter FAQ
310
K. Ipsec FAQ
317
K01. How Many VPN Tunnels Are Supported on Zywall
317
K02. How to Count My VPN Tunnels on Zywall
318
K03. What Is VPN
318
K05. What Are most Common VPN Protocols
319
K06. What Is PPTP
319
K07. What Is L2TP
319
K08. What Is Ipsec
320
K10. What Is Pre-Shared Key
320
K12. What Are Local ID and Peer ID
321
K13. Is My Zywall Ready for Ipsec VPN
322
K14. How Do I Configure Zywall VPN
322
K15. What VPN Protocols Are Supported by Zywall
322
K16. What Types of Encryption Does Zywall VPN Support
322
K17. What Types of Authentication Does Zywall VPN Support
322
K19. Does Zywall Support Dynamic Secure Gateway IP
323
K20. What VPN Gateway that Has Been Tested with Zywall Successfully
323
K21. What VPN Software that Has Been Tested with Zywall Successfully
324
K22. will Zyxel Support Secure Remote Management
324
K23. Does Zywall VPN Support Netbios Broadcast
324
K24. Is the Host Behind NAT Allowed to Use Ipsec
324
K25. How Do I Configure Zywall with NAT for Internal Servers
325
Need to Know
325
K27. Where Can I Configure Phase 1 ID in Zywall
325
K29. Single, Range, Subnet, Which Types of IP Address Does Zywall Support in Vpn/Ipsec
326
K28. How Can I Keep a Tunnel Alive
326
K30. Does Zywall Support Ipsec Pass-Through
326
Scanned by Anti-Virus, IDP and Anti-Spam Feature in Zywall Zynos V4.0
327
K31. Can Zywall Behave as a NAT Router Supporting Ipsec Pass through and an Ipsec Gateway Simultaneously
327
L01. Basic Cryptography Concept
327
L02. What Is PKI
328
L03. What Are the Security Services PKI Provides
328
L04. What Are the Main Elements of a PKI
328
L05. What Is a Certification Authority
329
L06. What Is a Digital Certificate
329
L09. How Does a PKI Ensure Data Confidentiality
330
L10. What Is a Digital Signature
330
L11. How Does a Digital Signature Work
330
L12. Does Zyxel Provide CA Service
331
L13. What if Customers Don't Have Access to CA Service, but Would Like to Use PKI Function
332
L14. How Can I Have Self-Signed Certificate for Zyxel Appliance
332
L15. Can I Create Self-Signed Certificates in Addition to the Default One
332
L16. will Self-Signed Certificate be Erased if I Reset to Default Configuration File
332
L17. will Certificates Stored in Zyxel Appliance be Erased if I Reset to Default Configuration File
332
L18. What Can I Do Prior to Reset Appliance's Configuration
332
M01. How Do Zywalls Dispatch Outgoing Sessions to Different WAN Connections
333
M02. Can Zywall Support VPN Load Balancing
333
N01. How Many Class Can I Create in Zywall Bandwidth Management Class Tree? And, What Is the Max Depth of a Class
333
M. Dual WAN Auto Fail-Over/Fail-Back and Load Balance FAQ
333
N. Bandwidth Management FAQ
333
O. Wireless FAQ
334
O01. Which Wireless Cards Does It Support in Zywall 5/35/70
334
O02. Which Wireless Security Option Can I Use While Using Related Wireless Cards
334
Other manuals for ZyXEL Communications ZYWALL 35
User Guide
872 pages
Quick Start Guide
142 pages
Specifications
2 pages
4
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ZyXEL Communications ZYWALL 35 Specifications
General
Brand
ZyXEL Communications
Model
ZYWALL 35
Category
Firewall
Language
English
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