Yeastar Technology TG200 User Manual page 77

9. Click Save and Apply Changes.
Enable Firewall Function
Procedure
1. Navigate to System > Security Center > Firewall Rules, check the checkbox of Enable
Firewall.
2. Click Save and Apply Changes.
The web page will prompt you that the firewall is enabled.
Block Pings through Your TG Gateway
By default, users can use the ping command from other devices to check if the TG gateway is alive.
You can block the pings to place your TG gateway in a more secure environment.
Procedure
1. Navigate to System > Security Center > Firewall Rules, check the checkbox of Disable Ping.
2. Click Save and Apply Changes.
Block All Packets and Connections
You can add Accept firewall rules for the trusted IP addresses or devices, and block all the other
packets and connections.
Important: you must create Accept firewall rules for the HTTP port and SSH port before you block all
packets and connections, or you will be unable to access the TG gateway.
Procedure
1. Navigate to System > Security Center > Firewall Rules, check the checkbox of Drop All.
2. Click Save and Apply Changes.
Add an IP Blacklist Rule
The rules in IP Blacklist will help the system to add the IP address to the blacklist automatically if the
number of the packets it sends exceeds the rule you configured.
TG Series User Guide
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