Working with Source-Based Routing

Source-based routing directs traffic to a specific destination based on the source IP address or a combination of the source and destination IP addresses. Rules defining Source-based routing take precedence over ordinary destination-based routing rules.

This section describes how to configure sourced-based routing rules when working in a VSX environment. The procedures for defining source-based rules are the same for Virtual Routers in both VSX Gateways and VSX clusters.

Included Topics Defining Source-Based Routing Rules Defining Source-Based Routing Rules

Defining Source-Based Routing Rules

Define Source-based Routing rules in the Topology page of the Virtual Router definition window.

To define source-based routing rules:

1. Open the appropriate internal Virtual Router definition and select the Topology page.
2. Click Advanced Routing.

   The Advanced Routing Rules window opens.

   Note: The highlighted rule is based on a source and a destination address, as compared to the preceding rules, which are based on a source address only.

3. Click Add, to define a new rule or Edit, to change an existing rule.

   The Add/Edit Route Rule window opens.

   Define the properties:

   • Source IP Address and Net Mask
   • Destination IP Address and Net Mask
   • Next Hop Gateway: Select a Virtual System from the list.

Defining Source-Based Routing Rules

Use the Advanced Routing Rules window to define source-based routing rules.

To define source-based routing rules:

1. Open SmartDashboard.
2. From the Network Objects tree, right-click the Virtual Router and select Edit.

   The General Properties window opens.

   From the navigation tree, select Topology.

3. Click Advanced Routing.

   The Advanced Routing Rules window opens.

4. Click Add, to define a new rule or Edit, to change an existing rule.

   The Add/Edit Route Rule window opens.

5. Define these settings:
   • Source IP Address and Net Mask
   • Destination IP Address and Net Mask
   • Next Hop Gateway
6. Click OK.