The following is the sixth part of a multipart series describing how I build
(software not hardware) my own Linux router from scratch, based on Debian 11.
* Part 1: Hardware [https://www.sherbers.de/diy-linux-router-part-1-hardware/]
* Part 2: Interfaces, DHCP and VLAN
[https://www.sherbers.de/diy-linux-router-part-2-interfaces-dhcp-and-vlan/]
* Part 3: PPPOE and