ZyXEL 35 Guia Do Utilizador
ZyWALL 35 Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
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ZyWALL 35 or ZyWALL 70?
No, you can NOT insert both ZyWALL Turbo Card and wireless card into ZyWALL device since there is
only one expansion slot available on the ZyWALL 5, ZyWALL 35 or ZyWALL 70.
C02. Except ZyWALL Turbo Card is a must when use AV+IDP service, what exactly I can
get benefit from it?
With ZyWALL Turbo Card inserted, customers can enjoy ZyXEL’s unique SecuASIC technology which
boosts up the performance of AV+IDP inspection while maintaining unmatched protection against
network security threats.
C03. Do I must have a ZyWALL Turbo Card inserted if I upgraded to ZyNOS v4.01? If not,
when must I insert a ZyWALL Turbo Card into my ZyWALL device?
No, the ZyWALL Turbo Card is not a must after you upgrade your ZyWALL to run ZyNOS v4.01.
A ZyWALL Turbo Card is required ONLY when you want to activate the AV+IDP security service in
ZyNOS v4.00 and above.
For the other two subscription services, which are the Anti-Spam and Content Filtering service, it’s NOT
required to have a ZyWALL Turbo Card inserted.
D. Firewall FAQ
D01. What is a network firewall?
A firewall is a system or group of systems that enforces an access-control policy between two networks.
It may also be defined as a mechanism used to protect a trusted network from an un-trusted network. The
firewall can be thought of two mechanisms. One to block the traffic, and the other to permit traffic.
D02. What makes ZyWALL secure?
The ZyWALL is pre-configured to automatically detect and thwart Denial of Service (DoS) attacks such
as Ping of Death, SYN Flood, LAND attack, IP Spoofing, etc. It also uses stateful packet inspection to
determine if an inbound connection is allowed through the firewall to the private LAN. The ZyWALL