Scroll to navigation

firehol-classify(5) 3.1.6 firehol-classify(5)


firehol-classify - classify traffic for traffic shaping tools


{ classify | classify46 } class [rule-params]

classify4 class [rule-params]

classify6 class [rule-params]


The classify helper command puts matching traffic into the specified traffic shaping class.

The class is a class as used by iptables(8) and tc(8) (e.g. MAJOR:MINOR).

The rule-params define a set of rule parameters to match the traffic that is to be classified. See firehol-params(5) for more details.

Any classify commands will affect all traffic matched. They must be declared before the first router or interface.


 # Put all smtp traffic leaving via eth1 in class 1:1
 classify 1:1 outface eth1 proto tcp dport 25



firehol-params(5) - optional rule parameters
iptables(8) ( - administration tool for IPv4 firewalls
ip6tables(8) ( - administration tool for IPv6 firewalls
tc(8) - show / manipulate traffic control settings
FireHOL Website (
FireHOL Online PDF Manual (
FireHOL Online Documentation (
Linux Advanced Routing & Traffic Control HOWTO (


FireHOL Team.
Built 08 May 2020 FireHOL Reference