ZyXEL 35 Guia Do Utilizador

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ZyWALL 35 Support Notes 
 
 
All contents copyright (c) 2006 ZyXEL Communications Corporation.   
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B02. Why it’s conditional to upgrade to ZyNOS v4.01 for ZyWALL 70? 
Because there are two versions of ZyWALL 70 in the field: the 32MB-RAM and the 64 MB-RAM 
versions. Only ZyWALL 70 equipped with 64MB RAM can be upgraded to run ZyNOS v4.00 and above. 
You can identify these two by checking the memory sizes. To check the memory of ZyWALL 70, issue 
the following command in CLI: “sys atsh
 
As a result, for ZyWALL 70 with 64MB RAM, the upgrade path is supposed to be like this: 
ZyNOS v3.62/v3.63/v3.64 Æ ZyNOS v3.65 Æ ZyNOS v4.00Æ ZyNOS v4.01. 
Please note, you can NOT upgrade to ZyNOS v4.00 directly. You must go through ZyNOS v3.65. 
 
For ZyWALL 70 with 32MB RAM, the upgrade path is: 
ZyNOS v3.62/v3.63/v3.64 Æ ZyNOS v3.65. 
Please note, ZyWALL 70 with 32MB RAM can NOT be upgraded to run ZyNOS v4.00 and above. 
 
To summarize, we have created the following table for your reference: 
Firmware-Model Mappings 
Firmware ZW70 
(32MB)  ZW70 (64MB) 
ZW35 
ZW5 
v3.62/3.63/3.64 
X X X 
v3.62/3.64 
v3.65 
X N/A N/A 
v4.00 
N/A X  X  X 
 
 
B03. What is ZyNOS v3.65 for ZyWALL 70? 
ZyNOS v3.65 is designed solely for ZyWALL 70. It is a “gating” firmware version for upgrading ZyNOS 
to v4.00 and above.   
Firmware v3.65 will verify ZW70’s memory size to see if user can upgrade to 4.00 or not. If end user 
wanted to upgrade to v4.00, she/he needs to upgrade to v3.65 first and this is a MANDATORY process. 
The ZyNOS v3.65 does NOT support the following features: Anti-Virus + IDP security service and 
Anti-Spam security service. 
 
ZyXEL will keep maintaining both ZyNOS v3.65, v4.00 and above for all ZyWALL 70 in the field. 
 
B04. What happens if I wrongfully upgrade firmware of a ZyWALL 70 with only 32MB of 
RAM to ZyNOS v4.01 directly?   
Because of the built-in protection mechanism, the upgrade will fail and you will receive an error message 
saying the device is not supported.