ZyXEL Communications ZYWALL 5 - Page 245

ZyXEL Communications ZYWALL 5

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ZyWALL 5 Support Notes

All contents copyright (c) 2006 ZyXEL Communications Corporation.

245

The Anti-Spam report also has a Score Distribution map and this can help administrator to setup a

valuable Spam Threshold to make the spam tag more suitable to the local environment.

Table of Contents

Table of Contents2
Application Notes12
Seamless Incorporation into Your Network12
- Using Transparent (Bridge Mode) Firewall12
- Internet Connection17
- DHCP Server/Client/Relay + Flexible Port Role Configuration19
- Using Nat/Multi-NAT23
Optimize Network Performance & Availability33
- Using Bandwidth Management33
Secure Connections Across the Internet and Wireless LAN47
- Site-To-Site VPN (Intranet) Scenario47
- Zywall Vs 3Rd Party VPN Gateway125
- Remote Access VPN Scenario197
  - Using Xauth for User Authentication198
  - Zyxel VPN Client to Zywall Tunneling200
- Flexible Wireless Connection and Security209
  - Deploy the Zywall WLAN Security Policy210
Threat Management214
- To Protect Computer Networks against Virus Intrusions and Attacks from Internet215
- To Control IM/P2P Applications Usage to Increase Employee Productivity221
- To Filter Non-Work Related and Unproductive Web Surfing to Mitigate Spyware and Phishing Threats226
- To Eliminate Spam Mails to Block Unwanted Messages Everyday236
Threat Reports241
Centralized Management246
A. Product FAQ251
- A05. Does the Zywall Support Pppoe252
- A12. How Does E-Mail Work through the Zywall253
- A20. Can the Zywall Support TFTP over WAN254
A23. What Is BOOTP/DHCP255
A25. When Do I Need DDNS Service256
A31. What Is STP (Spanning Tree Protocol) /RSTP (Rapid STP)257
A35. What Are the Key New Features of Zywall UTM258
- B04. What Happens if I Wrongfully Upgrade Firmware of a Zywall 70 with Only 32MB of RAM to Zynos V4.01 Directly259
- B05. What Happened if I Upgrade a Zywall 70 Running Zynos V3.62/3.63/3.64 to V4.01 Directly260
- Successful Firmware Upgrade to Zynos V4261
- C02. Except Zywall Turbo Card Is a Must When Use AV+IDP Service What Exactly I Can Get Benefit from It262
- D03. What Are the Basic Types of Firewalls263
- D05. Why Do You Need a Firewall When Your Router Has Packet Filtering and NAT Built-In264
- D09. What Is SYN Flood Attack265
- D14. in Zywall, Is DMZ Behind NAT or Not266
- D17. How Can I Protect against IP Spoofing Attacks268
E. Security Service Licenses FAQ269
- E07. if I Violate the Mappings Described Above, for Example, Using a Silver Icard for Zywall 35 or Zywall 70, What will Happen270
- E10. Does Zyxel Provide Customers Free Trial for Anti-Spam Service How Long Is It271
- Launch of Zynos V4.00? Which Zywall Models Can be Registered Via Myzyxel.com272
Registered User on Myzyxel.com273
F10. What's the URL for These Service Portals274
Service275
H01. Why Does Zywall Bundle Anti-Virus and IDP Feature Together276
H06. How Do I Keep Signatures of AV+IDP Service Updated277
Her/Him to Use Zyxel's Anti-Spam Service in Addition to the Current Solution278
I08. How Do I Keep Signatures of Anti-Spam Service Update279
J02. How Many Entries Can the Cache of Web Site Auto Categorization Keep at most280
J09. What Are the Primary Features of Zyxel Content Filtering281
J13. Can I Create My Own Categories282
J20. How Do I Locate Sites to Block283
- J24. How Does the Zyxel Content Filtering Handle Dynamically Generated Sites285
- J28. Can I Change the Password for Bluecoat Service286
K. Ipsec FAQ287
- K03. What Is VPN288
- K05. What Are most Common VPN Protocols289
- K10. What Is Pre-Shared Key290
- K12. What Are Local ID and Peer ID291
- K14. How Do I Configure Zywall VPN292
- K19. Does Zywall Support Dynamic Secure Gateway IP293
K22. will Zyxel Support Secure Remote Management294
Need to Know295
K28. How Can I Keep a Tunnel Alive296
L01. Basic Cryptography Concept297
L04. What Are the Main Elements of a PKI298
L09. How Does a PKI Ensure Data Confidentiality299
L10. What Is a Digital Signature300
L12. Does Zyxel Provide CA Service301
- L15. Can I Create Self-Signed Certificates in Addition to the Default One302
- M01. How Do Zywalls Dispatch Outgoing Sessions to Different WAN Connections303
O. Wireless FAQ304

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