No, you can't configure DHCP in that manner.
No, you can't configure DHCP in that manner.
Hey I just found out about AdGuard public DNS servers and I thought it would be nice to use them in my router so that all devices on my LAN see a decreased amount of ads (and also less tracking...). However, I realized that the router my ISP gave me doesn't allow me to specify the DNS servers I want to use. Apparently, this is a common thing... I was told, one way to circumvent that was to disable the DHCP server feature of my router and have another device be the DHCP server on my LAN, and select the DNS servers I want to use on that device. This sounds doable... I have 3 devices that are always powered on my LAN : 2 Synology NASes and a Rasperry Pi 4. I'm not so familiar with the Pi so I thought I could use one of the Synology to be the new DHCP server. There is an optional DHCP server package in DSM that should allow me to do just that. (there is also another available package called DNS server , but I believe it is not intended to do what I want to achieve. Let me know if I'm wrong. It not all so clear to me) Currently, my router has the IP 192.168.0.1 while the NASes and the Pi have fixed IPs (192.168.0.20 , 21 and 75, respectively). Also my printer has a fixed IP (15). All other clients get dynamic IPs. For some reason (peace of mind), I'd like to keep it like this. Would it be possible to have the new DHCP server (Synology NAS) be 192.168.0.20 and other devices also keep their current IP (including 192.168.0.1 for my router)? Or does it have to be that the DHCP server has the lowest IP of the range and assigns IPs with higher values to the clients? Also if you have any advice or links to tutorials, I'd be happy and grateful to benefit from your experience. Thanks a lot. -a- PS: I was thinking about having some redundant DHCP servers (maybe the 2 Synology) and Google pointed towards DHCP failover and similar stuff, but this looks pretty complicated and seems to require enterprise-grade hardware.
It seems Synology isn't the best option; using the Pi would be preferable. True, after a NAS reboot following an update, I need the DHCP server to stay active... reddit discussion
whichever device you have as your DHCP server is 'essential' for your local network to be functional. DHCP on your router makes sense, because when the router is unavailable there isnt much network to use anyways. the thing you can run into with running DHCP on your synology, is that if that for some reason doesnt work, you can get a situation where you cant access the synology to fix it.
Yes, it's possible. The DHCP server can assign an IP outside its standard range. You could have the server at 192.168.1.2 while the router stays at 192.168.1.1, and other devices use fixed IPs like 192.168.1.15 or lower. DHCP clients would receive addresses from the server in the 192.168.1.50–100 range using a 255.255.255.0 subnet.
The DHCP server is defined to operate outside its assigned address range. It may use any IP within the subnet, but it must not belong to the DHCP pool.
I'll keep my responses concise and focused. Let me know what you'd like to discuss about network settings.