DOKK / manpages / debian 11 / firehol-doc / firehol-tos.5.en
firehol-tos(5) 3.1.7 firehol-tos(5)

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

tos value chain [rule-params]

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.



 # 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

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firehol(1) - FireHOL program
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firehol.conf(5) - FireHOL configuration
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firehol-params(5) - optional rule parameters
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firehol-tosfix(5) - tosfix config helper
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iptables(8) (http://ipset.netfilter.org/iptables.man.html) - administration tool for IPv4 firewalls
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ip6tables(8) (http://ipset.netfilter.org/ip6tables.man.html) - administration tool for IPv6 firewalls
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FireHOL Website (http://firehol.org/)
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FireHOL Online PDF Manual (http://firehol.org/firehol-manual.pdf)
•
FireHOL Online Documentation (http://firehol.org/documentation/)

FireHOL Team.

Built 28 Feb 2021 FireHOL Reference