saddr

IP address number. 

Source address. 

daddr

IP address number. 

Destination address. 

sport

Either a port number or service name, as defined in /etc/services.

Source port from which a traffic class originated. 

dport

Either a port number or service name, as defined in /etc/services.

Destination port to which a traffic class is bound. 

protocol

Either a protocol number or protocol name, as defined in /etc/protocols.

Protocol to be used by this traffic class. 

dsfield

DS codepoint (DSCP) with a value of 0–63. 

DSCP, which defines any forwarding behavior to be applied to the packet. If this parameter is specified, the dsfield_mask parameter must also be specified.

dsfield_mask

Bit mask with a value of 0–255. 

Used in tandem with the dsfield selector. dsfield_mask is applied to the dsfield selector to determine which of its bits to match against.

if_name

Interface name. 

Interface to be used for either incoming or outgoing traffic of a particular class. 

user

Number of the UNIX user ID or user name to be selected. If no user ID or user name is on the packet, the default –1 is used. 

User ID that is supplied to an application. 

projid

Number of the project ID to be selected. 

Project ID that is supplied to an application. 

priority

Priority number. Lowest priority is 0. 

Priority that is given to packets of this class. Priority is used to order the importance of filters for the same class. 

direction

Argument can be one of the following: 

Direction of packet flow on the IPQoS machine.  

LOCAL_IN

Input traffic local to the IPQoS system. 

LOCAL_OUT

Output traffic local to the IPQoS system. 

FWD_IN

Input traffic to be forwarded. 

FWD_OUT

Output traffic to be forwarded. 

precedence

Precedence value. Highest precedence is 0. 

Precedence is used to order filters with the same priority. 

ip_version

V4 or V6

Addressing scheme that is used by the packets, either IPv4 or IPv6.