(Dowse Raspberry image) fix IP breaks functionality

[christiansievers]

Hi, the Raspberry image we got from you a couple of days ago works fine on my home network. I plug it in, the Dowse box gets an IP from the router, and then I turn off DHCP on the router. So far so good. I ask for a new DHCP lease on my laptop, and bingo, I'm in.

But when I edit /etc/network/interfaces on the Dowse box to give it a fix IP, that breaks things somehow. Dowse's DHCP doesn't work any more. I was stumped and even re-flashed the Raspberry to revert to the original image, but still the same problem.

I reverted things back to Dowse getting an IP from the router's DHCP, and now everything works again. So right now I can't restart the Dowse box, because that would leave it without an IP (it still uses the IP given to it by the router right now)...

For your reference, the home network is 192.168.178.0
The router is at 192.168.178.1
The dowse box gets this IP from the router: 192.168.178.20

This is the part in /etc/network/interfaces that breaks things, if I uncomment it (basically I was thinking to give it the same IP that it received from the router):
#auto eth0
#iface eth0 inet static
#address 192.168.178.20
#netmask 255.255.255.0

[parazyd]

On Sat, 30 Sep 2017, Christian Sievers wrote: This is the part in /etc/network/interfaces that breaks things, if I uncomment it (basically I was thinking to give it the same IP that it received from the router): #auto eth0 #iface eth0 inet static address 192.168.178.20 netmask 255.255.255.0

You are also supposed to uncomment the two lines commented above. Also add `gateway 192.168.178.1` (or whatever your gateway ip is (your router)), and optionally `network 192.168.178.0`.

[christiansievers]

Yes, I saw the two lines to uncomment, I had done that. And after DHCP didn't work I added exactly those lines you mention:
'gateway 192.168.178.1'
'network 192.168.178.0'
Didn't help...

[parazyd]

This should most definitely work... Something wrong is happening. Can you paste your whole /etc/network/interfaces file? Also what happens if you do `/etc/init.d/networking restart` on the Pi once it boots without an IP?

[christiansievers]

Hi,
right now it's
interfaces_dhcp.txt

What didn't work was this:

interfaces_fixed_ip.txt

Also what happens if you do /etc/init.d/networking restart on the Pi once it boots without an IP?

It's headless so if that happens I can only do a hard restart. I don't have a spare monitor at home, but I guess if it's important to try this I could use a serial cable to log in to the Pi.

By the way, not sure if this is related or not, there is another issue with the ON-button not working properly. I can click it and it reloads the page, but the button stays off, and that particular phone is left without connection. Is there a shell command I could try? Or any other idea? I also wouldn't mind turning on party mode, but my version of Dowse doesn't seem to give me that option, at least in the web interface.
UPDATE: I ssh'd into the Dowse console and ran dowse-stop and then dowse-start, and now I can turn things on and off again

[kneibdev]

I have exactly the same problems. Tried for hours now but fixed IP doesn't seem to work. Also dhcp settings are ignored (see my other issue).

[jaromil]

Hi everyone!
have you tried to edit /etc/dowse/settings (starting from the template in /etc/dowse/settings.dist)?

[kneibdev]

Yes I did...
Status is now:
After booting the Dowse Pi it has no default gateway. I have it set in /etc/network/interfaces
After manually added it seems to work but Dowse is always dhcp-ing the range: 101 till 149, whatever I set in /etc/dowse/settings

[jaromil]

ACK, you are right (well, its 101-249, anyway yes) the dhcp range setting isn't converted into the configuration of the ISC DHCP daemon.

About the gateway, you mean also setting wan inside /etc/dowse/settings doesn't give a default gateway on boot? In this case we may want to fix this as well, however is good practice to use also /etc/network/interfaces

[kneibdev]

Correct: wan=192.168.100.102 is set in my /etc/dowse/settings but after booting I don't have a default gw. Have to add it manually.

Can i specify the range for DHCP for the time being somewhere else?
Tried als in ~dowse/dowse-src/daemons/dhcpd but no luck.

[jaromil]

I'm fixing that (dhcp range) right now and will do more tests on the wan.

the problem is generated by a transition to a smarter detection system, but indeed manual settings should always override all correctly.

To receive the fixes you need to use latest git master branch.

[kneibdev]

Okay thanks. Noob question: can I get to latest git master when I started with the downloadable sdcard image?

[jaromil]

Its actually a good question that we should include in the documentation.

I will try to sketch the procedure, but may be missing some detail:

• you log inside the box as user dowse
• cd dowse-src
• git pull
• make
  then login as root and
• cd /home/dowse/dowse-src
• make install
  it is rather important to not build it as root since during build the user is configured in some scripts.

[kneibdev]

This results in an error:

devuan% more dhcpd.conf                                                                                                        Dowse
option routers 192.168.100.101;
option domain-name "dowse.it";
option domain-name-servers 192.168.100.101;
authoritative;
db-time-format local;
ddns-domainname "dowse.it";
local-address 192.168.100.101;
omapi-port 7911;

subnet 192.168.100.0/24 netmask 255.255.255.0 {
  range 192.168.100.10 192.168.100.65;

  on commit {
    set clip = binary-to-ascii(10, 8, ".", leased-address);
    set clhw  = binary-to-ascii(16, 8, ":", substring(hardware, 1, 6));
    execute("/usr/local/dowse/bin/pendulum", "lease", clip, clhw, host-decl-name);
  }
}
devuan%

the /24 shouldn't be in the subnet I think...

  .  starting daemon: dhcpd
Internet Systems Consortium DHCP Server 4.3.4
Copyright 2004-2016 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
/home/dowse/.dowse/run/dhcpd.conf line 10: Expecting netmask
subnet 192.168.100.0/
                     ^
Configuration file errors encountered -- exiting

[stucksubstitute]

Hi!

have you tried to edit /etc/dowse/settings (starting from the template in /etc/dowse/settings.dist)?

The instructions in that file aren't very clear. So the actual, live settings file should be /etc/dowse/settings, not /etc/dowse/settings.dist ? Can you clarify please?