DHCP for /16 netmask (Legacy class B network)

[VincenzoV]

Hi all

I need a /16 (class B) network in my LAN (172.16.x.z/16). DHCP work fine, but I can't set byte 3 in DNS: it's grayed!

I need DHCP range from 172.16.1.0 to 172.16.255.254

Orbi RB50, firmware V2.3.1.60

Thanks

[CrimpOn]

 Most residential routers are designed to create at most 254 private IP addresses.  It is certainly creative to pick part of the 172 address space (most users appear to accept whatever Orbi suggests, usually 192.168 or 10.0).

I think this is not going to happen for you.

[FURRYe38]

"I need DHCP range from 172.16.1.0 to 172.16.255.254" This is not a valid networking range for home class routers. Or any networking router. 

172.16.1.1 thru .1.254 is valid or 172.16.255.1 thru .254 is valid. 

---

@VincenzoV wrote:

Hi all

I need a /16 (class B) network in my LAN (172.16.x.z/16). DHCP work fine, but I can't set byte 3 in DNS: it's grayed!

I need DHCP range from 172.16.1.0 to 172.16.255.254

Orbi RB50, firmware V2.3.1.60

Thanks

---

[VincenzoV]

---

@FURRYe38 wrote:

This is not a valid networking range for home class routers. Or any networking router. 

---

I need a /16 network (legacy class B), not a /24 (legacy class C)

- 172.16.0.0/16 is the network address

- 172.16.0.1/16 is the first valid address (tre Orbi gateway)

- up to 172.16.0.255/16 will be, in my network, static IPs

- from 172.16.1.0/16 to 172.16.255.254/16 will be under DHCP server control. This is my problem with Orbi: I can't set it!

- 172.16.255.255/16 is the broadcast address

[FURRYe38]

This is probaby not supported by Orbi. It's DHCP services are simple for home class networks. 

Sounds like you need a business calss router. 

[CaptainZack]

Really?  You need 65k addesses?  Do you have a clue what the ramifications are of using that large a subnet?  Do you even know what a broadcast domain is?  If you truly have a need for more than 200+ host addresses, then Orbi (or any other consumer-grade router/Wi-Fi system) is not the right class of network gear for you.