User's Manual

- 105 -
 First of all make sure the Firewall option is enabled. Only consider disabling your firewall if your PLNAET
IPPBX is behind a router/firewall without any port forwarding from the Internet.
 Drop Ping will cause the system to ignore ping request. If enabled, you cannot ping the IPPBX system.
 Drop All will cause all packets sent to the IPPBX system being dropped, this will cause IPPBX system to block
all communication with the outside world. Except web UI still works in local network, other services will all be
terminated.
 Geo IP is a security policy which can be used to grant access of IP addresses from certain countries/regions,
all IP addresses from other countries/regions which are not specified will all be blocked. By default, web UI
will still be accessible. Enabling Geo IP requires Drop All to be enabled too.
To implement Geo IP please follow the steps below.
Step 1: Enable Geo IP and Drop All
Step 2: Select trusted countries/regions
Besides selecting the trusted IP addresses from certain countries/regions, you’ll still need to add a common
rule in the Common Rules section to grant access or the local network hosts/devices.
Step 3: Add a common rule to grant access of your local LAN.
 The Action of this rule needs to be set as Accept.
 Protocol should be set as TCP/UDP.