| .TH "Match-all classifier in tc" 8 "21 Oct 2015" "iproute2" "Linux" |
| |
| .SH NAME |
| matchall \- traffic control filter that matches every packet |
| .SH SYNOPSIS |
| .in +8 |
| .ti -8 |
| .BR tc " " filter " ... " matchall " [ " |
| .BR skip_sw " | " skip_hw |
| .RI " ] [ " |
| .B action |
| .IR ACTION_SPEC " ] [ " |
| .B classid |
| .IR CLASSID " ]" |
| .SH DESCRIPTION |
| The |
| .B matchall |
| filter allows to classify every packet that flows on the port and run a |
| action on it. |
| .SH OPTIONS |
| .TP |
| .BI action " ACTION_SPEC" |
| Apply an action from the generic actions framework on matching packets. |
| .TP |
| .BI classid " CLASSID" |
| Push matching packets into the class identified by |
| .IR CLASSID . |
| .TP |
| .BI skip_sw |
| Do not process filter by software. If hardware has no offload support for this |
| filter, or TC offload is not enabled for the interface, operation will fail. |
| .TP |
| .BI skip_hw |
| Do not process filter by hardware. |
| .SH EXAMPLES |
| To create ingress mirroring from port eth1 to port eth2: |
| .RS |
| .EX |
| |
| tc qdisc add dev eth1 handle ffff: ingress |
| tc filter add dev eth1 parent ffff: \\ |
| matchall skip_sw \\ |
| action mirred egress mirror \\ |
| dev eth2 |
| .EE |
| .RE |
| |
| The first command creats an ingress qdisc with handle |
| .BR ffff: |
| on device |
| .BR eth1 |
| where the second command attaches a matchall filters on it that mirrors the |
| packets to device eth2. |
| |
| To create egress mirroring from port eth1 to port eth2: |
| .RS |
| .EX |
| |
| tc qdisc add dev eth1 handle 1: root prio |
| tc filter add dev eth1 parent 1: \\ |
| matchall skip_sw \\ |
| action mirred egress mirror \\ |
| dev eth2 |
| .EE |
| .RE |
| |
| The first command creats an egress qdisc with handle |
| .BR 1: |
| that replaces the root qdisc on device |
| .BR eth1 |
| where the second command attaches a matchall filters on it that mirrors the |
| packets to device eth2. |
| |
| To sample one of every 100 packets flowing into interface eth0 to psample group |
| 12: |
| .RS |
| .EX |
| |
| tc qdisc add dev eth0 handle ffff: ingress |
| tc filter add dev eth0 parent ffff: matchall \\ |
| action sample rate 100 group 12 |
| .EE |
| .RE |
| |
| .EE |
| .SH SEE ALSO |
| .BR tc (8), |
