ZyXEL Communications ZYWALL 35 - Page 5

ZyWALL 35 Support Notes
5
B07. If I were a 32MB ZyWALL 70 owner and a Content Filtering
service subscriber, will my current license status be retained after
joining your ZyWALL 70 trade-in promotion?.....................................290
B08. What’s the firmware upgrade path for my current ZyWALL 5
and ZyWALL 35?.....................................................................................290
B09. After a successful firmware upgrade to ZyNOS v4.01, what’s the
default setting of AV+IDP, AS and CF? .................................................290
B10. What happens to my original system configurations after a
successful firmware upgrade to ZyNOS v4.01?....................................291
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
C01. Can I insert the ZyWALL Turbo Card & wireless card
simultaneously into ZyWALL 5, ZyWALL 35 or ZyWALL 70?..........291
C02. Except ZyWALL Turbo Card is a must when use AV+IDP service,
what exactly I can get benefit from it?...................................................292
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? ...............................................................................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
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