update lan, wan separation for o2 6431

Signed-off-by: Stefan Weil <sw@weilnetz.de>

The site.node_client_prefix6() is only used internally by the l3roamd
protocol. Therefore it is unnecessary to expose it to an administrator.

Instead, if node_client_prefix6 is unspecified in the site, generate an
IPv6 Unique Local Address prefix from the site domain_seed.

This updates the site documentation as well and marks this setting as
both optional and deprecated.

Note: If you had the node_client_prefix6 specified before and want to
use the new autogeneration from the domain_seed instead then this will
break compatibility and will need a gluon-scheduled-domain switch.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>

Signed-off-by: David Bauer <mail@david-bauer.net>

Co-authored-by: Jan-Niklas Burfeind <git@aiyionpri.me>
fixed commit title

follow-up on

commit 854fef4e ("docs: consistently indent .rst files with 2 spaces")

These devices use all LAN ports as a WAN bridge.

Closes #2721

Signed-off-by: David Bauer <mail@david-bauer.net>

Signed-off-by: David Bauer <mail@david-bauer.net>

as well as the target itself

Co-authored-by: Jan-Niklas Burfeind <github@aiyionpri.me>

Signed-off-by: Richard Fröhning <misanthropos@gmx.de>

affected:
- CPE510
- WBS210
- Archer C50

Gone due to
commit 45c84a11 ("ar71xx: drop target")

AVM Fritz!Box 7520 and Fritz!Box 7530 use the same hardware platform and can
only be distinguished by using the urlader partition or the fritz-tffs tools
and read the ProductID (Fritz_Box_HW247).

Upstream added a standalone SPI kernel-loader which fixes the unbootable
image for the WDR4900. Thus, we can re-introduce this device to Gluon.

Signed-off-by: David Bauer <mail@david-bauer.net>

Signed-off-by: David Bauer <mail@david-bauer.net>

Specification:

SoC: MediaTek MT7628AN
RAM: 64MiB
Flash: 8MiB
Wifi:
  - 2.4GHz: MT7628AN
  - 5GHz: MT7612EN
LAN: 1x 10/100 Mbps

Flash instructions:
Flash factory image through stock firmware WEB UI.
Back to stock is possible by using TFTP and stripping down the Firmware
provided by TP-Link to a initramfs.

The flash space between 0x650000 and 0x7f0000
is blank in the stock firmware so I left it out as well.

Co-authored-by: Christoph Krapp <christoph.krapp@power.cloud>

- explain what happens on gluon-reconfigure
- show workflow to alter the wired network config
- update examples
- update 'has changed in' section

resolves #2474

Co-authored-by: Tom Herbers <mail@tomherbers.de>
Co-authored-by: David Bauer <mail@david-bauer.net>
Co-authored-by: Andreas Ziegler <dev@andreas-ziegler.de>

Co-authored-by: Tom Herbers <mail@tomherbers.de>
Co-authored-by: David Bauer <mail@david-bauer.net>
Co-authored-by: Andreas Ziegler <dev@andreas-ziegler.de>

Gone due to
commit 45c84a11 ("ar71xx: drop target")

Note: Buffalo has introduced hardware changes without bumping the
revision number. 19.07 did not support the rb-variant so there's no need
to implement a migration for the rb-variant.
Every g300nh supported by Gluon should either be the s-variant or
been flashed wrongly.

Gone due to
commit 45c84a11 ("ar71xx: drop target")

Gone due to
commit 45c84a11 ("ar71xx: drop target")

Gone due to
commit 45c84a11 ("ar71xx: drop target")

Gone due to
commit 45c84a11 ("ar71xx: drop target")

Note that it was wrongly marked as device class tiny in
commit 7fd7116e ("targets: add device-class flags") in the past,
the device has 64MB RAM and not 32MB.

Also, the device has no "led-running" assigned in DTS. The device has
three LEDs: "green:vpn", "green:lan" and "green:wlan". The first LED,
"green:vpn", has a "V" icon and was used to show the VPN connection
status in the vendor firmware. This LED will be used via the newly
added "led-boot" fallback in gluon-setup-mode. But will be unused
during normal operation due to the unassigned "led-running" in DTS.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>

Gone due to
commit 45c84a11 ("ar71xx: drop target")

The CN/RU variant of the device has the same hardware
as the EU already supported, but contains a 16M flash chip.

Gone due to
commit 45c84a11 ("ar71xx: drop target")

ar71xx only supported the 8M variant

Specifications:
* SoC: AR7242 (Virian 400MHz)
* RAM: 64 MB DDR (W9751G6JB-25)
* Flash: 16MB SPI flash (S25FL129PIF)
* WiFi: AR9382 (2.4/5GHz) + 2x SE2595L
* LAN: 1x1000M (PEF7071V)

To install via EVA bootloader, a FTP connection need to be
established to 192.168.178.1 within the first seconds after power on:

  ftp> quote USER adam2
  ftp> quote PASS adam2
  ftp> binary
  ftp> debug
  ftp> passive
  ftp> quote MEDIA FLSH
  ftp> put lede-ar71xx-generic-fritz300e-squashfs-sysupgrade.bin mtd1

Co-Authored-By: J. Burfeind <github@aiyionpri.me>

Co-authored-by: Tim-Niklas Koch <info@tnkoch.de>
Co-authored-by: J. Burfeind <github@aiyionpri.me>