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RAX50: Reserving an IP Address for AVRs
I have always used DHCP IP assignment in my home LAN and have some very basic questions about using IP address reservation instead. The issue I have with my two AVRs on DHCP is that when the rout...
Glad you got it working. You should be good to go with this configuration. Be sure to save off a back up configuration to file for safe keeping. Saves time if a reset is needed.
https://kb.netgear.com/24231/How-do-I-back-up-the-router-configuration-settings-on-my-Nighthawk-router
Enjoy. 📡
Many thanks for that quick and responsive reply.
You would change the default IP address range to something smaller. I use 192.168.1.100 to .200. This gives plenty of room on either side for static IP addressed devices while giving room for reservations inside this range.
I see; that explains my confusion about the DHCP range versus reservations. I did not realize that the user could change the router's DHCP range to free up addresses for reservation. Somehow I envisioned this to be a set range as I do not recall ever finding instructions to this effect in the user manuals for any of my routers to date. Is this procedure documented anywhere?
OTOH, I already have two dozen or more devices in my LAN with an assortment of DHCP IP addresses so that to avoid complications with the existing assignments I suppose it would be simpler just to make the change to fixed IP in the AVRs. Do you agree? BUT:
If you manually set a STATIC Ip address on the AVR, then you don't need to set a IP address RESERVATION ON the router. You can't do both. Also a Static IP address needs to be out side of a routers default IP address pool range.
So this implies that I can not simply change the network setting on the AVR from DHCP to fixed using the current IP address. First I MUST restrict the router's DHCP pool to a range that excludes whatever is assigned to both AVRs? But that would then potentially affect other devices with addresses adjacent to these such that I could not restrict the HDCP pool to a single range without excluding the addresses currently assigned to those other devices. Or if I did so, then the router would presumably simply reassign those devices to a new IP address within the newly restricted DHCP range?
If you manually set a STATIC Ip address on the AVR, then you don't need to set a IP address RESERVATION ON the router. You can't do both.
What would be the results if I tried to do this? What would be the repercussions or how would I recognize that I had done something wrong? Please forgive my ignorance; I am not new to networking but, as previously stated, have no experience with static IP assignments and have always been puzzled about the proper way to go about it.
Chi_Guy50 wrote:
Many thanks for that quick and responsive reply.
You would change the default IP address range to something smaller. I use 192.168.1.100 to .200. This gives plenty of room on either side for static IP addressed devices while giving room for reservations inside this range.
I see; that explains my confusion about the DHCP range versus reservations. I did not realize that the user could change the router's DHCP range to free up addresses for reservation. Somehow I envisioned this to be a set range as I do not recall ever finding instructions to this effect in the user manuals for any of my routers to date. Is this procedure documented anywhere?
Not that I know of.
OTOH, I already have two dozen or more devices in my LAN with an assortment of DHCP IP addresses so that to avoid complications with the existing assignments I suppose it would be simpler just to make the change to fixed IP in the AVRs. Do you agree? BUT:
If you manually set a STATIC Ip address on the AVR, then you don't need to set a IP address RESERVATION ON the router. You can't do both. Also a Static IP address needs to be out side of a routers default IP address pool range.
So this implies that I can not simply change the network setting on the AVR from DHCP to fixed using the current IP address. First I MUST restrict the router's DHCP pool to a range that excludes whatever is assigned to both AVRs? But that would then potentially affect other devices with addresses adjacent to these such that I could not restrict the HDCP pool to a single range without excluding the addresses currently assigned to those other devices. Or if I did so, then the router would presumably simply reassign those devices to a new IP address within the newly restricted DHCP range? Yes, the router will adjust the IPs that current devices already have. You may just need to reboot or power cycle some devices so the new addressing takes effect.
If you manually set a STATIC Ip address on the AVR, then you don't need to set a IP address RESERVATION ON the router. You can't do both.
What would be the results if I tried to do this? What would be the repercussions or how would I recognize that I had done something wrong? Please forgive my ignorance; I am not new to networking but, as previously stated, have no experience with static IP assignments and have always been puzzled about the proper way to go about it. You can change it back if something goes wrong. After you make the change on the router, its recommended to reboot or power cycle all of your devices to that everything starts fresh with the new configuration.