Firewall Rules - Yeastar Technology TA3210 User Manual

Firewall Rules

Firewalls are used to prevent unauthorized Internet users from accessing private
networks connected to the Internet, especially intranets. All messages entering or
leaving the intranet pass through the firewall, which examines each message and
blocks those that do not meet the specified security criteria.
1) General Settings
Table 10-2 Description of Firewall General Settings
Item Description
Enable the firewall to protect the device.
Enable Firewall
Enable this item to drop net ping from remote hosts.
Disable Ping
When you enable "Drop All" feature, the system will drop all packets
or connection from other hosts if there are no other rules defined.
Drop All Note:
common rule must be created for port used for SSH access, port
used for HTTP access and port sued for CGI access.
Figure 10-7 Firewall Settings
To avoid locking the devices, at least one "TCP" accept
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