ZyXEL Communications ZyWALL 5 Support Notes page 4

ZyWALL 5 Support Notes
A22. My ZyWALL can not get an IP address from the ISP to connect
to the Internet, what can I do?................................................................254
A23. What is BOOTP/DHCP? ................................................................255
A24. What is DDNS?................................................................................255
A25. When do I need DDNS service? .....................................................256
A26. What DDNS servers does the ZyWALL support?........................256
A27. What is DDNS wildcard? ...............................................................256
A28. Does the ZyWALL support DDNS wildcard?...............................256
A29. Can the ZyWALL NAT handle IPSec packets sent by the VPN
gateway behind ZyWALL? .....................................................................256
A30. How do I setup my ZyWALL for routing IPSec packets over
NAT? .........................................................................................................256
A31. What is STP (Spanning Tree Protocol) /RSTP (Rapid STP)? .....257
A32. What is the flow ZyWALL handles inbound and outgoing
traffic?.......................................................................................................257
A33. What is "UTM"? .............................................................................257
A34. What are the differences between ZyWALL UTM models and
previous ZyWALL models?.....................................................................257
A35. What are the key new features of ZyWALL UTM?.....................258
B. Firmware Upgrade FAQ................................................................................258
B01. Which ZyWALL models are eligible to be upgraded to run
ZyNOS v4.01?...........................................................................................258
B02. Why it's conditional to upgrade to ZyNOS v4.01 for ZyWALL
70?..............................................................................................................259
B03. What is ZyNOS v3.65 for ZyWALL 70?........................................259
B04. What happens if I wrongfully upgrade firmware of a ZyWALL
70 with only 32MB of RAM to ZyNOS v4.01 directly? ........................259
B05. What happened if I upgrade a ZyWALL 70 running ZyNOS
v3.62/3.63/3.64 to v4.01 directly?............................................................260
B06. I am a 32MB ZyWALL 70 owner, how can I upgrade to ZyNOS
v4.01 having AV+IDP and AS features? .................................................260
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?.....................................260
B08. What's the firmware upgrade path for my current ZyWALL 5
and ZyWALL 35?.....................................................................................260
B09. After a successful firmware upgrade to ZyNOS v4.01, what's the
default setting of AV+IDP, AS and CF? .................................................260
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