ip adress

[douwebakker]

Hi, Domoticz's ip address on raspberry changed spontaneously. What is the cause of this?
Douwe

[jvdz]

When it is using DHCP to acquire its IP address, it will get it from your DHCP server (likely your router).
So you either hardcode the IPaddress in the PI or set a fix IP address in your DHCP server for the PI's MAC address.

Jos

[douwebakker]

Thanks for the reply. I'm a digibeet.
I thought the ip address automatically would be a fixed address, but not so.

[jvdz]

When you want to fix it on your RPI you could follow this explanation in the WiKi:
https://www.domoticz.com/wiki/Preparing ... _ip-adress

Jos

[Lebo2d9]

Hi. I use an ip adress reservation in my router and leave the pi on dhch.

[TakeAway]

Hi. I use an ip adress reservation in my router and leave the pi on dhch.

I do it the same way, is this a good solution or is it better to fix your ip within your pi?

[EddyG]

I use fixed IP for all my 'fixed' eg. not mobile devices.
So Raspberry gets a fixed IPaddress.

[Lebo2d9]

When you give your RPI a fix IP address and your RPI is for some reason offline,
your router can distribute the IP address that you give to your RPI.

When your RPI comes then online you have an IP confict in your network.

When you did an IP reservation in your router, the router only distribute that IP address to the MAC you specified.

You can also created a smaller DHCP pool on your router. And give your "fixed" devices a FIX address that is not in the pool.

[jvdz]

That is indeed why I use the ip-addresses x.x.x.1-99 for fixed devices and DHCP uses the range x.x.x.100-244.
This ensures you never have these type of conflicts.
So you either do it this way of have the reserve the IP address when it is part of the DHCP scope.

Jos