User's Manual

Networking
Dynamic DNS
Cisco ISA500 Series Integrated Security Appliance Administrator Guide 136
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STEP 6 Click Save to apply your settings.
Priority of Routing Rules
If multiple routing features operate simultaneously, the security appliance first
matches up with the Policy-based Routing rules, and then matches up with the
Static Routing and default Routing rules.
For example, if WAN redundancy is set to the Weighted Loading Balancing mode,
and the PBR and Static Routing rules are configured, the routing priority works as
follows:
1. If all traffic cannot match up with the PBR or Static Routing rules, all traffic
follows the Weighted Loading Balance settings.
2. If traffic A matches up with the PBR or Static Routing rules, traffic A will be firstly
handled by the PBR or Static Routing rules, while other traffic follows the
Weighted Loading Balance settings.
Dynamic DNS
Dynamic DNS (DDNS) is an Internet service that allows routers with varying public
IP addresses to be located using Internet domain names. If your ISP has not
provided you with a static IP and your WAN connection is configured to use DHCP
to obtain an IP address dynamically, then DDNS provides the domain name to map
the dynamic IP address for your website. To use DDNS, you must set up an
account with a DDNS provider such as DynDNS.com.
STEP 1 Click Networking -> DDNS.
The DDNS window opens.
STEP 2 To add a new DDNS service, click Add.
Other options: To edit an entry, click Edit. To delete an entry, click Delete.
After you click Add or Edit, the Edit window opens.
STEP 3 Enter the following information:
• Service: Choose either DynDNS or No-IP service.