---
name: "probe::netfilter.bridge.forward"
section: "3stap"
platform: "linux"
package: "systemtap-doc"
version: "5.1-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/probe::netfilter.bridge.forward"
---

# probe::netfilter.bridge.forward(3stap)

Called on an incoming bridging packet destined for some other computer

## NAME

probe::netfilter.bridge.forward - Called on an incoming bridging packet destined for some other computer

## SYNOPSIS

```
netfilter.bridge.forward
```

## VALUES

*indev\_name*

Name of network device packet was received on (if known)

*br\_htime*

Hello time in 1/256 secs

*br\_type*

BPDU type

*nf\_drop*

Constant used to signify a 'drop' verdict

*nf\_repeat*

Constant used to signify a 'repeat' verdict

*length*

The length of the packet buffer contents, in bytes

*br\_mac*

Bridge MAC address

*br\_cost*

Total cost from transmitting bridge to root

*data\_hex*

A hexadecimal string representing the packet buffer contents

*nf\_accept*

Constant used to signify an 'accept' verdict

*br\_fd*

Forward delay in 1/256 secs

*llcproto\_stp*

Constant used to signify Bridge Spanning Tree Protocol packet

*nf\_stolen*

Constant used to signify a 'stolen' verdict

*indev*

Address of net\_device representing input device, 0 if unknown

*pf*

Protocol family -- always “bridge”

*outdev*

Address of net\_device representing output device, 0 if unknown

*outdev\_name*

Name of network device packet will be routed to (if known)

*br\_max*

Max age in 1/256 secs

*br\_prid*

Protocol identifier

*brhdr*

Address of bridge header

*protocol*

Packet protocol

*nf\_queue*

Constant used to signify a 'queue' verdict

*nf\_stop*

Constant used to signify a 'stop' verdict

*br\_poid*

Port identifier

*br\_msg*

Message age in 1/256 secs

*br\_flags*

BPDU flags

*llcpdu*

Address of LLC Protocol Data Unit

*br\_vid*

Protocol version identifier

*br\_bid*

Identity of bridge

*br\_rid*

Identity of root bridge

*data\_str*

A string representing the packet buffer contents

*br\_rmac*

Root bridge MAC address

## SEE ALSO0

[*tapset::netfilter*(3stap)](/tapset::netfilter/3stap.md)