ZyXEL 35 Guia Do Utilizador

ZyWALL 35 Support Notes

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Afterwards, from within WebGUI of another device, you can restore the backup file so that the IDP

feature’s policy settings are duplicated and you will have same IDP policy settings on both ZyWALL

devices.

H06. How do I keep signatures of AV+IDP service updated?

We recommend you configuring your device to automatically update the signature on an hourly basis so

that the device will check with our Update Server to see if there is new signature available. However, you

could still change the update interval as you wish and could force manual update at any given time.

H07. How often does ZyXEL release signatures of AV+IDP security service?

ZyXEL is managing to release the AV+IDP signature packs at least 5 times a week on a regular basis.

Those signatures are fully tested and the quality is assured.

Once new virus is spreading, ZyXEL will release the virus signature as fast as it can. Minimizing the

impact of new virus is always the first priority for our AV+IDP service subscribers.

H08. Will the traffic coming in through the VPN tunnel also be scanned by Anti-Virus, IDP

and Anti-Spam feature in ZyWALL ZyNOS v4.0?

No, VPN traffic will not be inspected by be scanned by Anti-Virus, IDP and Anti-Spam module.

However, we manage to support this feature in the forthcoming ZyNOS firmware.

I. Anti-Spam FAQ

I01. What’s the difference between gateway Anti-Spam and client-based Anti-Spam filter

such as Microsoft Outlook’s?

The major differences between the two are:

1. Sensitivity: ZyWALL’s AS can adjust threshold while you can not adjust AS threshold in Outlook.

2. Phishing: ZyWALL’s AS can detect phishing emails but Outlook’s AS cannot detect phishing emails.

3. Outlook’s AS filter is updated monthly with Windows Update, while ZyWALL’s AS is updated in

real-time.

Furthermore, ZyWALL’s Anti-Spam feature is complementary with client-based Anti-Spam filter.