extensions/libipt_CLASSIFY.man - maze/iptables - Git at Google

 This module allows you to set the skb->priority value (and thus classify the packet into a specific CBQ class).
 .TP
 .BI "--set-class " "MAJOR:MINOR"
 Set the major and minor class value.
	This module allows you to set the skb->priority value (and thus classify the packet into a specific CBQ class).
	.TP
	.BI "--set-class " "MAJOR:MINOR"
	Set the major and minor class value.