Casio ISA550WBUN3K9 manual Networking

Networking	4
Configuring the WAN

-Weighted by Link Bandwidth: If you choose this option, specify the amount of bandwidth for each WAN, such as 80 Mbps for WAN1 and 20 Mbps for WAN2, which indicates that 80% bandwidth is distributed to WAN1 and at least 20% bandwidth is distributed to WAN2.

NOTE: The Weighted by Link Bandwidth option has the same effect with the Weighted by Percentage option. It just provides more percentage options than Weighted by Percentage that only provides three percentage options. For example, you can set 60 Mbps for WAN1 and 40 Mbps for WAN2, which indicates that 60% bandwidth is distributed to WAN1 and the remaining 40% bandwidth is distributed to WAN2.

•Based on Real-time Bandwidth: Sends traffic to the link that has the highest real-time bandwidth. Use information from your service provider to specify the base bandwidth for each link in the WAN1 and WAN2 fields.

•Failover: If a failure is detected on the primary link, then the security appliance diverts all Internet traffic to the backup link. When the primary link regains connectivity, all Internet traffic is directed to the primary link and the backup link becomes idle. By default, WAN1 is set as the primary link and the WAN2 is set as the backup link.

NOTE: When the security appliance is working in the Failover mode, the Policy-Based Routing settings will be ignored.

-Select WAN Precedence: Choose which link to use as the primary link

and the secondary link. The default option is Primary: WAN1; Secondary: WAN2.

-Preempt Delay Timer: Enter the time in seconds that the security appliance will wait before sending traffic to the primary link from the backup link after the primary link is up again. The default value is 5 seconds.

•Routing Table: Uses the static routing policies to determine the types of traffic that pass through the two WAN links. For information on configuring static routing, see Configuring Static Routing, page 151.

STEP 2 Enable Policy Based Routing if you want to use policies to specify the internal IP and/or service going through each WAN port to provide more flexible and granular traffic handling capabilities. Click On to enable this feature, or click Off to disable it. After enabling this feature, click Configure to set the policies. See Configuring Policy-Based Routing, page 153.

Cisco ISA500 Series Integrated Security Appliances Administration Guide 131