The router must have IP source routing disabled.

From Infrastructure Router Security Technical Implementation Guide Juniper

Part of IP Source Routing is not disabled on all routers.

SV-15317r2_rule The router must have IP source routing disabled.

Vulnerability discussion

Source routing is a feature of IP, whereby individual packets can specify routes. This feature is used in several different network attacks by bypassing perimeter and internal defense mechanisms.

Check content

Under the edit chassis hierarchy, enter a show command to verify that the no-source-route command is present.

Fix text

Configure the router to disable IP source routing.

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