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[ScreenOS] How to set the DSCP value for each route-based VPN

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Article ID: KB11161 KB Last Updated: 14 Mar 2013Version: 5.0
Summary:

This article provides information on how to configure Differentiated Services Code Point (DSCP) Marking for the ESP-tunnel packet.

Symptoms:

Is DSCP supported with route-based VPNs?

Cause:

Solution:

In ScreenOS 6.1, the DSCP value for each route-based VPN can be configured on the firewall. Prior to ScreenOS 6.1, DSCP marking was supported only via policies.

To enable this new feature, use the set vpn <vpn-name> dscp-mark <dscp-value> command, in which <dscp-value> is between 0 and 63.

For example:

To enable the DSCP mark for traffic that is going through the VPN test, use the following command:

set vpn test dscp-mark 10

To verify the configuration, use the following command:

ssg20-> get vpn test

DSCP-mark: enabled, value: 10

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