---
name: "axports"
section: "5"
platform: "linux"
package: "libax25"
version: "0.0.12-rc5+git20230513+5581005-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/axports"
---

# axports(5)

AX.25 port configuration file.

## NAME

*/etc/ax25/axports* - AX.25 port configuration file.

## DESCRIPTION

*axports* is an ASCII file that contains information about each of the physical AX.25 ports that are to be used. When dealing with an AX.25 utility such as **call**, it takes an argument that is the port name. This port name is a reference to the line within **axports,** which has that name as its first argument. The information on each line contains enough information to bind the command to a particular physical AX.25 interface, this binding is done by matching the callsign on the line in **axports** with the callsign of the port set by **kissattach.**

The lines within *axports* must either be a comment line, which starts with a # in the first column, or a port description in the following format, each field being delimited by white space:

name callsign speed paclen window description

The field descriptions are:

- **name**

  is the unique identifier of the port. This is the name given as the port argument of many of the AX.25 support programs. This is *not* in any way related to actual device identities, just unique

- **callsign**

  the callsign of the physical interface to bind to.

- **speed**

  this is the speed of interface, a value of zero means that no speed will be set by [kissattach(8)](/kissattach/8.md).

- **paclen**

  is the default maximum packet size for this interface.

- **window**

  the default window size for this interface.

- **description**

  a free format description of this interface, this field extends to the end of the line. This field may contain spaces.

## FILES

/etc/ax25/axports

## SEE ALSO

[**call**(1)](/call/1.md), [**ax25**(4)](/ax25/4.md), [**axparms**(8)](/axparms/8.md), [**kissattach**(8)](/kissattach/8.md).
