---
name: "Net::Write::Layer2"
section: "3pm"
platform: "linux"
package: "libnet-write-perl"
version: "1.10-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Net::Write::Layer2"
---

# Net::Write::Layer2(3pm)

object for a link layer (layer 2) descriptor

## NAME

Net::Write::Layer2 - object for a link layer (layer 2) descriptor

## SYNOPSIS

```
   use Net::Write::Layer2;
   my $desc = Net::Write::Layer2->new(
      dev => 'eth0',
   );
   $desc->open;
   $desc->send('G'x666);
   $desc->close;
```

## DESCRIPTION

This is the class for creating a layer 2 descriptor.

## ATTRIBUTES

- **dev**

  The string specifying network interface to use.

  Under Unix-like systems, this is in this format: \\w+\\d+ (example: eth0).

  Under Windows systems, this is more complex; example: \\Device\\NPF\_{0749A9BC-C665-4C55-A4A7-34AC2FBAB70F}

## METHODS

- **new**

  Object constructor. You MUST pass a valid **dev** attribute. There is no default value. Returns undef on error.

- **open**

  Open the interface. Returns undef on error.

- **send** (scalar)

  Send raw data to the network.

- **close**

  Close the descriptor.

## CAVEATS

Writing junk to loopback interface on BSD systems will not work.

## SEE ALSO

Net::Write::Layer

## AUTHOR

Patrice \<GomoR\> Auffret

## COPYRIGHT AND LICENSE

Copyright (c) 2006-2015, Patrice \<GomoR\> Auffret

You may distribute this module under the terms of the Artistic license. See LICENSE.Artistic file in the source distribution archive.