Installation guide

MyPBX U300 Administrator's Guide
www.yeastar.com Page149
Figure G-11 Enable IP Restriction
4. Setup Proper Firewall Rules
Note: Please backup the configurations on backup and restore page before you
go ahead. In the case that you lock the device, you can reset to factory default
and restore the previous configurations. The example rules below works with
MyPBX firmware version 2.15.xx.xx or higher versions.
Step1. Enable firewall on firewall page of MyPBX.
SystemFirewall SettingsFirewall RulesGeneral Settings
Figure G-12 Enable Firewall