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Forum Discussion
Edit/Add new IP reservations
I have an RBR50v2 Orbi router and 2 satellites with FW ver 2.7.5.6. I have entered 15, or so, reserved internal IP addresses using "Advanced > Security > Access Control". All works well. The is...
There are differing opinions on the best way to manage the "range" of the DHCP process.
My opinion is this:
- Reserved IP addresses should not be part of the DHCP "pool". Suppose a device with a reserved IP address is not currently connected to the network (perhaps a mobile phone) and some other random device connects and makes a DHCP request. These is a possibility that this device may be assigned the IP that was supposed to be reserved for that phone. What happens if the phone now appears and asks to connect? It cannot have the reserved IP because some other device already has it.
- The DHCP "pool" should be large enough to handle devices which connect to the network and do not have reserved IP addresses.
- In my case, IPs from 192.168.1.2 through 192.168.1.100 are set aside for reserved addresses and IPs from 192.168.1.101 to 192.168.1.150 are in the "pool". IPs from 192.168.1.151 through 192.168.1.254 are not defined.
- I definitely endorse reserving IP addresses for satellites, printers, NAS devices, etc.
(being a wee bit OCD) I reserve IP addresses for every device which is expected to be connected to the network and have set aside groups of IPs for types of devices (cameras, smart plugs, etc.)
My LAN Setup table currently has 59 devices.
Reserved IP addresses should not be part of the DHCP "pool".
FWIW, I also keep them out of the pool. But I'd consider it a bug if the router were to assign a reserved address to a different device - even if the reserved address is not connected at the time.
I definitely endorse reserving IP addresses for satellites, printers, NAS devices, etc.
You should reserve the IP address for any destination of a port forwarding rule.
I reserve NAS, printers, desktop PCs connected over ethernet, and smart/managed switches.
So the "pool" is defined by "Use Router as DHCP Server" with a Starting and Ending IP Address range? And the "undefined" range is not used at all, correct?
Yes. Though "undefined" just means that CrimpOn has chosen not to reserve those addresses. Note the last address in the subnet (.255) is a broadcast address, so should not be used for any client.