Configuring the Route Target

As part of the policy configuration for the VPN routing table, you must define a route target, which defines which VPN the route is a part of. When you configure different types of VPN services (Layer 2 VPNs, Layer 3 VPNs, or VPLS) on the same PE router, be sure to assign unique route target values to avoid the possibility of adding route and signaling information to the wrong VPN routing table.

To configure the route target, include the target option in the community statement:

You can include the community statement at the following hierarchy levels:

• [edit policy-options]
• [edit logical-systems logical-system-name policy-options]

name is the name of the community.

community-id is the identifier of the community. Specify it in one of the following formats:

• as-number:number, where as-number is an AS number (a 2-byte value) and number is a 4-byte community value. The AS number can be in the range 1 through 65,535. We recommend that you use an IANA-assigned, nonprivate AS number, preferably the ISP’s own or the customer’s own AS number. The community value can be a number in the range 0 through 4,294,967,295 (2³² – 1).
• ip-address:number, where ip-address is an IPv4 address (a 4-byte value) and number is a 2-byte community value. The IP address can be any globally unique unicast address. We recommend that you use the address that you configure in the router-id statement, which is a nonprivate address in your assigned prefix range. The community value can be a number in the range 1 through 65,535.

Copyright © 2009, Juniper Networks, Inc. All rights reserved. Trademark Notice.