Migrate new file structure to crux (#435)

* order workflows and add submodule

* rename gitmodules file

* delete docs/.gitignore

* add vyos custom linter

* correct __pycache__ in gitignore

* add test-coverage.py

* move draw.io folder

* arrange changelog, install history and about

* arrange: firewall

* arrange: highavailability

* arrange: loadbalancing

* arrange: nat

* arrange: services

* sort configexamples and configuration interfaces

* wireles: rename wireless

* rearrange: Protocols and Policy

* rearrange: Firewall and Zone Policy

* rearrange: Interfaces

* rearrange: Interfaces

* rearrange: dynamic DNS

* hostinfo: add page to index

* rearrange: appendix

* venv: add Pipfile

* rearrange: contributing

* index: remove debugging

* rearrange: fix all figure and refs

* rearrange: commandtree

* fix: cli, openvpn, install headline level

* protocols: change headline

* firewall: move mss clamping

* ip: separate ipv4 and ipv6

* arp: move to static page

* igmp: rename multicast page

* Update to year 2021

1 files changed, 53 insertions, 0 deletions

diff --git a/docs/configuration/service/broadcast-relay.rst b/docs/configuration/service/broadcast-relay.rst
new file mode 100644
index 00000000..40f738e6
--- /dev/null
+++ b/docs/configuration/service/broadcast-relay.rst
@@ -0,0 +1,53 @@
+UDP broadcast relay
+-------------------
+
+Certain vendors use broadcasts to identify their equipemnt within one ethernet
+segment. Unfortunately if you split your network with multiple VLANs you loose
+the ability of identifying your equiment.
+
+This is where "UDP broadcast relay" comes into play! It will forward received
+broadcasts to other configured networks.
+
+Every UDP port which will be forward requires one unique ID. Currently we
+support 99 IDs!
+
+Example #1: To forward all broadcast packets received on `UDP port 1900` on
+`eth3`, `eth4` or `eth5` to all other interfaces in this configuration.
+
+.. code-block:: none
+
+  set service broadcast-relay id 1 description 'SONOS'
+  set service broadcast-relay id 1 interface 'eth3'
+  set service broadcast-relay id 1 interface 'eth4'
+  set service broadcast-relay id 1 interface 'eth5'
+  set service broadcast-relay id 1 port '1900'
+
+Example #2: To Forward all broadcasts packets received on `UDP port 6969` on
+`eth3` or `eth4` to the other interface in this configuration.
+
+.. code-block:: none
+
+  set service broadcast-relay id 2 description 'SONOS MGMT'
+  set service broadcast-relay id 2 interface 'eth3'
+  set service broadcast-relay id 2 interface 'eth4'
+  set service broadcast-relay id 2 port '6969'
+
+Disable Instance(s)
+^^^^^^^^^^^^^^^^^^^
+
+Each broadcast relay instance can be individually disabled without deleting the
+configured node by using the following command:
+
+.. code-block:: none
+
+  set service broadcast-relay id <n> disable
+
+In addition you can also disable the whole service without removing the
+configuration by:
+
+.. code-block:: none
+
+  set service broadcast-relay disable
+
+.. note:: You can run the UDP broadcast relay service on multiple routers
+   connected to a subnet. There is **NO** UDP broadcast relay packet storm!