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Creating Classifier Control Lists ! 15

Chapter 2: Creating Policies

! Use the color keyword to match on one of the following:

! green—Matches packets with color green, indicating a low drop preference

! yellow—Matches packets with color yellow, indicating a medium drop

preference

! red—Matches packets with color red, indicating a high drop preference

! user-packet-class—Matches packets with the specified user packet class

value

! Use the no version to remove the classifier control list.

Examples: IP CLACLs ! Example 1—To set up a CLACL to accept IP traffic from all source addresses on

the subnet of XYZ Corp:

host1(config)#ip classifier-list XYZCorpPermit ip 192.168.0.0 0.0.255.255 any

! Example 2—To create a CLACL that filters all ICMP echo requests headed

toward an access link for XYZ Corp under a denial-of-service attack:

host1(config)#ip classifier-list XYZCorpIcmpEchoReqs icmp any any 8 0

! Example 3—To create a CLACL that matches all IGMP type 1 packets:

host1(config)#ip classifier-list XYZCorpIgmpType1 igmp any any 1

! Example 4—To create a CLACL that matches all traffic on UDP source ports

greater than 100:

host1(config)#ip classifier-list XYZCorpUdp udp any gt 100 172.17.2.1

0.0.255.255

ipv6 classifier-list

! Use to create or modify an IPv6 classifier control list.

! Use the following keywords to configure the list:

! traffic-class—Matches packets with a traffic class that you defined using

the traffic-class command

! color

" green—Matches packets with color green, indicating a low drop

preference

" yellow—Matches packets with color yellow, indicating a medium drop

preference

" red—Matches packets with color red, indicating a high drop preference

! user-packet-class—Matches packets with the specified user packet class

value

NOTE: Do not use the asterisk (*) for the name of a classifier list. The asterisk is

used as a wildcard for the classifier-group command.

Juniper E320 User Manual

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