Match-all classifier in tc(8) Linux Match-all classifier in tc(8)

# [NAME](#NAME)

matchall - traffic control filter that matches every packet

# [SYNOPSIS](#SYNOPSIS)

**tc** **filter** ... **matchall** \[ **skip\_sw** | **skip\_hw** ] \[ **action** *ACTION\_SPEC* ] \[ **classid** *CLASSID* ]

# [DESCRIPTION](#DESCRIPTION)

The **matchall** filter allows one to classify every packet that flows on the port and run a action on it.

# [OPTIONS](#OPTIONS)

[**action ACTION\_SPEC**](#action)

Apply an action from the generic actions framework on matching packets.

[**classid CLASSID**](#classid)

Push matching packets into the class identified by *CLASSID*.

[**skip\_sw**](#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.

[**skip\_hw**](#skip_hw)

Do not process filter by hardware.

# [EXAMPLES](#EXAMPLES)

To create ingress mirroring from port eth1 to port eth2:

```
tc qdisc  add dev eth1 handle ffff: clsact
tc filter add dev eth1 ingress                \


        matchall skip_sw                      \


        action mirred egress mirror           \


        dev eth2
```

The first command creates a clsact qdisc with handle **ffff:** on device **eth1** where the second command attaches a matchall filters on it that mirrors the packets to device eth2 for ingress.

To create egress mirroring from port eth1 to port eth2:

```
tc qdisc add dev eth1 handle ffff: clsact
tc filter add dev eth1 egress                  \


        matchall skip_sw                       \


        action mirred egress mirror            \


        dev eth2
```

The first command creates a clsact qdisc with handle **ffff:** on device **eth1** where the second command attaches a matchall filters on it that mirrors the packets to device eth2 for egress.

To sample one of every 100 packets flowing into interface eth0 to psample group 12:

```
tc qdisc add dev eth0 handle ffff: ingress
tc filter add dev eth0 parent ffff: matchall \


     action sample rate 100 group 12
```

# [SEE ALSO](#SEE_ALSO)

[**tc**(8)](/man/os/iproute2/tc.8),

21 Oct 2015 iproute2

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Document: tc-matchall(8) from iproute2 7.2.0-r0 (Chainguard OS)
Source: https://kernel.googlesource.com/pub/scm/network/iproute2/iproute2