Network options -> IPv4 Link Local Addressing (Zeroconf)

[drummerclint]

Hey Arjan!

Hope you are well. I was wondering if you make the following cases happen in the network configuration:

use_dhcp=0 ip_address=192.168.2.251

• If "use_dhcp=1" then

  • if dhcp server found, then use ip from dhcp (already the case)
  • if dhcp server not found, then
  • if ip_address is "ip_address=x.x.x.x" then use that IP
  • if ip_address is "#ip_address" or not found, then use APIPA IP

• If "use_dhcp=0" or "#use_dhcp" then

  • if ip_address is "ip_address=x.x.x.x", then use that IP
  • if ip_address is "#ip_address" or not found, then use default 2.x.x.x address that you have listed

I think it makes using the orangepi easier to use in many different network environments without having to always reconfigure networking

[vanvught]

Hi Clint,

I will implement the IP Addressing Modes as described in ANSI E1.37-2 – 2015, section 3.5 IP Addressing Modes:

Three IPv4 address configuration modes are provided: static configuration, DHCP [DHCPv4] and Zeroconf [IPv4LL]. The IP Addresses used for an interface shall be determined by: • If a static address is configured, it shall be used. • If no static address is configured, and DHCP mode is enabled, the device shall attempt to acquire an address for the interface using DHCP. • If no static address is configured, and DHCP failed to provide an address (or was disabled / unsupported) a link local address shall be used if Zeroconf mode is enabled. • If none of the above provided an address, the interface shall remain unconfigured.

[IPv4LL] RFC 3927– Dynamic Configuration of IPv4 Link-Local Addresses. 2005. [http://tools.ietf.org/html/rfc3927]

Then Zeroconf is always enabled.

And when "use_dhcp=0" AND (ip_address is "#ip_address" or ip_address=0), then defaulting to the 2.x.y.z (based on MAC address as specified in Art-Net 4 "IP address configuration – Static Addressing").

[drummerclint]

Hey Arjan,

That sounds great. Thank you!

[vanvught]

In order to assist in debugging Zeroconf -> https://github.com/ETCLabs/RDMnet/pull/35

[vanvught]

Added new menu option 'Broadcast' to example Java UI. This will make it easier to debug this enhancement request.

RemoteConfigUI.jar.zip

[vanvught]

Hi Clint, please find attached the build with full Zeroconf support. Please let me know how this new feature is working for you. Thanks, Arjan

[Removed zip file]

[vanvught]

Added flow chart -> http://www.orangepi-dmx.org/orange-pi-dmx512-rdm/network-configuration/ethernet

[drummerclint]

Hi Arjan,

It's fantastic! The broadcast feature is an indispensable touch! Is it possible that when you click the Enable DHCP, it only affects the use_dhcp value? Main reason is to not change the hostname parameter. The flowchart is also a nice addon.

Thank you!

Clint

[vanvught]

Hi Clint,

Is it possible that when you click the Enable DHCP, it only affects the use_dhcp value?

Such a function is possible with doing some MacOS/Linux shell scripting. First retrieving the 'network.txt' file, then doing a 'sed' for the 'use_dhcp'. And then sending back (unicast) the 'network.txt'. I will add on my ToDo list providing some more scripting examples. I have already one here -> https://github.com/vanvught/h3dmx512-zip/blob/master/do-tftp.sh

With the sample UI, I just do broadcasting , there are no queries. broadcast("#network.txt\nuse_dhcp=1"); I needed this simple reset in my debug and testing environment. I will rename the button to 'Reset to defaults'.

When your lighting software/desk is RDMNet LLRP enabled (or using the ETC llrp_manager_example), then you can do a selected 'Factory reset'. This one just enables DHCP and does not touch any other network configuration. And it enables the remote configuration.

Greetings, Arjan

[vanvught]

Update: there is now DHCP Release message when reboot is initiated with UDP or RDMNet LLRP message.

opi_emac_ltc_smpte.zip

[vanvught]

Published