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Forum Discussion
Jmichaels001
Jul 13, 2020Aspirant
Orbi RBR850 IP Address reservations and DHCP address range
Im looking for direction related to using address reservations, and how to set the DHCP address range. I have an Orbi RBR850 and 2 satellites RBS850, a Synology NAS, and about 20 other devices attac...
FURRYe38
Jul 13, 2020Guru - Experienced User
Jmichaels001 wrote:Im looking for direction related to using address reservations, and how to set the DHCP address range. I have an Orbi RBR850 and 2 satellites RBS850, a Synology NAS, and about 20 other devices attached.(Laptops, iphones, Directv, etc.).
Assuming all devices are setup for DHCP and not fixed IP:
1) Should I set the IP address range for DHCP to start at 192.168.1.20, and reserve IP addresses for NAS and other critical devices between 192.168.1.2 and 192.168.1.19, or does the DHCP range need to include the all of the IP addresss including the reserved IP addresses?
Yes you can do that. I use a default IP address pool range of .100 to .200. Anything on ether side of this pool range can be used for static assigned devices. I would set static IP devices like, NAS, Controllers, Cameras, printers and anything that doesn't need much router management, set these devices to static outside the IP address pool
2) Should the Orbi satellites receive reserved IP addresses?
You can set up reservations for the RBS ON the RBR.
3) Does it matter if devices on reserved IP addresses are plugged into an Orbi satellite in some circumstances?
No. The RBS are just pass thru.
Jmichaels001
Jul 19, 2020Aspirant
An IP reservation as I understand it while having similarities to a static IP address, still has the individual device set as DHCP. So when using IP reservations for some devices, should they be included in the range of IP addresses (starting IP address range) or should they be excluded from the range of addresses in the DHCP pool?
- Chuck_MJul 19, 2020Mentor
You can reserve IP addresses outside of the range of DHCP assignments.
- FURRYe38Jul 19, 2020Guru - Experienced User
IP address reservation should be always with in the range of the default IP address pool. Static IPs are set on devices out side the default IP address pool so no need to assign any reservations for those.
Jmichaels001 wrote:
An IP reservation as I understand it while having similarities to a static IP address, still has the individual device set as DHCP. So when using IP reservations for some devices, should they be included in the range of IP addresses (starting IP address range) or should they be excluded from the range of addresses in the DHCP pool?- arlomikeJul 27, 2020Apprentice
I think Orbi's DHCP server is a mess. It doesn't seem to check if an IP is being used and dishes out a conflicting IP address. Ask me how I know this. Something this simple seems to create havoc. I've never experienced this w/ my Asus router... Upgrade to Orbi 2 days ago and issues with IP conflicts. Awesome.
- FURRYe38Jul 27, 2020Guru - Experienced User
What FW version are you using?
Someting I have not seen with my Orbi AX router.
arlomike wrote:I think Orbi's DHCP server is a mess. It doesn't seem to check if an IP is being used and dishes out a conflicting IP address. Ask me how I know this. Something this simple seems to create havoc. I've never experienced this w/ my Asus router... Upgrade to Orbi 2 days ago and issues with IP conflicts. Awesome.