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| ZyWALL 2 Series User’s Guide | |
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| Table | |
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| LABEL | DESCRIPTION |
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| Check WAN | Configuration of this field is optional. If you do not enter an IP address here, the ZyWALL |
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| IP Address | will use the default gateway IP address. Configure this field to test your ZyWALL's WAN |
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| accessibility. Type the IP address of a reliable nearby computer (for example, your ISP's |
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| DNS server address). If you are using PPTP or PPPoE Encapsulation, type "0.0.0.0" to |
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| configure the ZyWALL to check the PVC (Permanent Virtual Circuit) or PPTP tunnel. |
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| Fail Tolerance | Type the number of times your ZyWALL may attempt and fail to connect to the Internet |
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| before traffic is forwarded to the backup gateway. |
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| Period (sec) | Type the number of seconds for the ZyWALL to wait between checks to see if it can |
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| connect to the WAN IP address (Check WAN IP Address field) or default gateway. |
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| Allow more time if your destination IP address handles lots of traffic. |
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| Timeout (sec) | Type the number of seconds for your ZyWALL to wait for a ping response from the IP |
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| Address in the Check WAN IP Address field before it times out. The WAN connection is |
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| considered "down" after the ZyWALL times out the number of times specified in the Fail |
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| Tolerance field. Use a higher value in this field if your network is busy or congested. |
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| Apply | Click Apply to save your changes back to the ZyWALL. |
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| Reset | Click Reset to begin configuring this screen afresh. |
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6.10 Configuring Dial Backup
To change your ZyWALL’s Dial Backup settings, click WAN, then the Dial Backup tab. The screen appears as shown.
WAN Screens |