This file defines rules for setting Type Of Service (TOS). Its use is deprecated, beginning in Shorewall 4.5.1, in favor of the TOS target in \m[blue]shorewall-mangle\m[]\s-2\u[1]\d\s+2 (5).

The columns in the file are as follows (where the column name is followed by a different name in parentheses, the different name is used in the alternate specification syntax).

SOURCE - {all|address]|all:address|$FW}

If all, may optionally be followed by ":" and an IP address, a MAC address, a subnet specification or the name of an interface.

Example: all:

MAC addresses must be prefixed with "~" and use "-" as a separator.

Example: ~00-A0-C9-15-39-78

DEST - {all|address]|all:address}


PROTOCOL (proto) - proto-name-or-number

Protocol name or number.

SOURCE PORT(S) (sport) - {-|port|lowport:highport}

Source port or port range. If all ports, use "-".

DEST PORT(S) (dport) - {-|port|lowport:highport}

Destination port or port range. If all ports, use "-"

TOS - tos

Must may one of the following;

        tos-minimize-delay (16)
        tos-maximize-throughput (8)
        tos-maximize-reliability (4)
        tos-minimize-cost (2)
        tos-normal-service (0)

To specify more than one flag, add their values together and specify the numeric result.

MARK - [!]value[/mask][:C]

If you don't want to define a test but need to specify anything in the following columns, place a "-" in this field.


Inverts the test (not equal)


Value of the packet or connection mark.


A mask to be applied to the mark before testing.


Designates a connection mark. If omitted, the packet mark's value is tested.



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