Cisco Support Community
Community Member

RV220W built-in DHCP server can't save class B IP address pool

I was trying to set a DHCP pool with with RV220W, however, RV220W UI can't save it. It displays "IP Address Range -"

Firmware (just downloaded from cisco)

Browser: IE 8 and Chrome

Step to reproduce: (it is 100% reproducible)

1. login into RV220W admin web

2. Create a VLAN, id 201

3. Go to "Multiple VLAN subnets", select the VLAN, click edit

4. Enter following info:

IP Address:

Subnet Mask:

DHCP Mode: DHCP Server

Domain Name: Cisco

Starting IP Address:

Ending IP Address:

Primary DNS Server:

Leave rest of settings with default value.

DNS proxy is enabled

5. Press Save button. The UI shows text "IP Address Range -".

Screenshot is attached (RV220W-DHCP-IP-POOL-ERROR.png)

Expected result: RV220W shall save the setting and make use of subnet in IP pool.

By the way, the error message "IP Address Range -" seems incomplete

I tried same setting on netgear FVS318N (very similar settings to RV220W), it accepts as DHCP IP pool and works.

RV220W has great feature set meets my needs. Its UI is slow and sometime dashboard freezes, which I can live with comparing to features. But DHCP server IP pool can't be class B is huge limitation to me. Any firmware could fix it?

Everyone's tags (5)
Community Member

RV220W built-in DHCP server can't save class B IP address pool

Hello Mkkk,

What you are getting here (IP Address Range) is a message showing that your address pool is too large. No matter what class you are choosing to use the router will only allow a pool of approx 254 addresses per subnet. Your address pool range will have to end at or there about.

Thank You,

Wesley S

CreatePlease to create content