====== Using the jPC's Ethernet Link Local Address ======

The jPC's Ethernet port is configured by default with a static [[https://en.wikipedia.org/wiki/Link-local_address|link local IP address]] of 169.254.1.1. The link local address allows you to directly connect an Ethernet cable between a PC and the jPC without the need for additional hardware, such as a hub, switch, router, etc.

With just a PC (e.g. a notebook), an Ethernet cable, and with the SSH server enabled, the Ethernet Link Local address can be used to access and administer the jPC both at development time, and when deployed in the field.

Examples:
  * Use ''ssh admin@169.254.1.1'' to run commands on the jPC.
  * Use ''scp /path/to/file admin@169.254.1.1'' to copy files to the jPC.
  * Use ''scp admin@169.254.1.1:/path/to/file .'' to copy files from the jPC.

Use [[https://filezilla-project.org/|FileZilla Client]] if you prefer having a GUI to transfer files to and from the jPC over this link local address.

To change the link local address, or disable it entirely, see [[jpc:network_configuration:index|jPC Network Configuration]].