ZyXEL Communications ZyWALL 2WG Support Notes page 212

2. Proactively Prevent Phishing
Phishing – The act of sending an email to a user falsely claiming to be an established legitimate enterprise
in an attempt to scam the user into surrendering private information that will be used for identity theft.
With the CF feature provided by ZyWALL 2 Plus, network administrator can dramatically lower the chance
of company network to prevent users accessing the known phishing websites.
2.1 Setup the ZyWALL 2PLUS CF service to block the known phishing web sites
2.1.1 The General settings:
1. In CONTETN FILTER ->General, check the Enable Content Filter check box to enable CF
function.
2. In Schedule to Block, select the Always Block to let CF engine to do blocking the web sites.
3. In Message to display when a site is blocked, you can input the text, say "(Website Blocking)", to
remind the users that the website he is trying to access is blocked. And you can input the URL in the
Redirect URL field, for example, "www.zyxel.com" to redirect the original URL to this redirect- URL.
4. In Exempt Computers item, we can select Exclude specified address ranges from the content filter
enforcement to NOT apply content filter policies to the specified IP address ranges, for example, if the
CEO's computer which is assigned an IP address: 192.168.10.200 needed NOT to be applied by CF
engine, the IT staff can add this IP address 192.168.10.200 to the list to meet this exclusion
requirement.
5. Click on the Apply button to save the settings.
All contents copyright (c) 2006 ZyXEL Communications Corporation.
ZyWALL 2WG Support Notes
212