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Assessment Title
Rule Text
The system must use an appropriate reverse-path filter for IPv6 network traffic, if the system uses IPv6.
Description
Discussion Text
Reverse-path filtering provides protection against spoofed source addresses by causing the system to discard packets that have source addresses for which the system has no route or if the route does not point towards the interface on which the packet arrived. Depending on the role of the system, reverse-path filtering may cause legitimate traffic to be discarded and, therefore, should be used with a more permissive mode or filter, or not at all. Whenever possible, reverse-path filtering should be used.
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