3com MSR 20-20 참조 매뉴얼

ip urpf { loose | strict } [ allow-default-route ] [ acl acl-number ]

Interface view

loose: Specifies the loose URPF check.

strict: Specifies the strict URPF check.

allow-default-route: Allows special treatment to default route.

acl-number: ACL number, in the range of 2000 to 3999.

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For a basic ACL, the value ranges from 2000 to 2999.

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For an advanced ACL, the value ranges from 3000 to 3999.

Use the ip urpf command to enable URPF check on the interface.

Use the undo ip urpf command to disable this function.

By default, URPF check is disabled.

# Enable strict URPF check on interface Ethernet 1/0, allowing special treatment to 
default route, and referencing ACL 2999.

<Sysname> system-view

[Sysname] interface ethernet 1/0

[Sysname-Ethernet1/0] ip urpf strict allow-default-route acl 2999 

# Enable loose URPF check on interface Ethernet 1/1.

<Sysname> system-view

[Sysname] interface ethernet 1/1

[Sysname-Ethernet1/1] ip urpf loose