Can you define subnets in allowed hosts setting

Obelisk · September 17, 2026, 8:36am

Version 4.0.20.3014
Package Version 4.0.20.3014-ls325 by linuxserver.io
.NET Yes (6.0.13)
Docker Yes
Database Sqlite 3.53.4
Database Migration 217

General question regarding the “Allowed Hosts” field under “Settings/General”. I would like to simply define a subnet, but it appears I must use explicit IP addresses. Is there a way to use a subnet definition such as 192.168.1.0/24? I tried that syntax, and it did not work.

Thirrian · September 18, 2026, 3:47am

github.com/Sonarr/Sonarr

Allow Subnets in CIDR format to be added to "Allowed Hosts" configuration

opened 08:03PM - 17 Sep 26 UTC

closed 08:06PM - 17 Sep 26 UTC

phitz-dev

needs-triage

### Is there an existing issue for this? - [x] I have searched the existing ope…n and closed issues ### Is your feature request related to a problem? Please describe After the last update the "Allowed Hosts" config has become required in some circumstances. Rather than individual IPs I would like to be able to allow subnets in CIDR format. (i.e. 192.168.0.0/24, 10.0.0.0/8). That way devices given an IP via DHCP can connect. Otherwise everything would need a static IP which isn't very scalable for home wifi networks and mobile devices (ios, android, etc). ### Describe the solution you'd like I would like to be able add subnets to the "Allowed Hosts" configuration in CIDR format. (i.e. 192.168.0.0/24, 10.0.0.0/8). <img width="830" height="688" alt="Image" src="https://github.com/user-attachments/assets/c47661a7-2676-48b2-9f05-c137e8949f2b" /> ### Describe alternatives you've considered Only alternatives is to configure individual IP address for every host on your network. Not scalable with DHCP assigned IPs. ### Anything else? _No response_