NAME

       firehol-tos - set the Type of Service (TOS) of packets

SYNOPSIS

       tos value chain [rule-params]

DESCRIPTION

       The tos helper command sets the Type of Service (TOS) field in packet headers.

              Note

              There  is  also  a  tos  parameter  which  allows matching TOS values within individual rules (see
              firehol-params(5)).

       The value can be an integer number (decimal or hexadecimal) or one of the descriptive values accepted  by
       iptables(8) (run iptables -j TOS --help for a list).

       The  chain  will  be  used  to  find  traffic  to mark.  It can be any of the iptables(8) built in chains
       belonging to the mangle table.  The chain names are: INPUT, FORWARD, OUTPUT, PREROUTING and  POSTROUTING.
       These names are case-sensitive.

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

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

EXAMPLES

               # set TOS to 16, packets sent by the local machine
               tos 16 OUTPUT

               # set TOS to 0x10 (16), packets routed by the local machine
               tos 0x10 FORWARD

               # set TOS to Maximize-Throughput (8), packets routed by the local
               #              machine, destined for port TCP/25 of 198.51.100.1
               tos Maximize-Throughput FORWARD proto tcp dport 25 dst 198.51.100.1

SEE ALSO

       • firehol(1) - FireHOL program

       • firehol.conf(5) - FireHOL configuration

       • firehol-params(5) - optional rule parameters

       • firehol-tosfix(5) - tosfix config helper

       • iptables(8) - administration tool for IPv4 firewalls

       • ip6tables(8) - administration tool for IPv6 firewalls

       • FireHOL Website

       • FireHOL Online PDF Manual

       • FireHOL Online Documentation

AUTHORS

       FireHOL Team.

FireHOL Reference                               Built 22 Sep 2024                                 firehol-tos(5)