TA400/800 User Manual
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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.
Figure 10-7 Firewall Settings
1) General Settings
Table 10-2 Description of Firewall General Settings
Enable the firewall to protect the device.
Enable this item to drop net ping from remote hosts.
When you enable ―Drop All‖ feature, the system will drop all packets
or connection from other hosts if there are no other rules defined. To
avoid locking the devices, at least one ―TCP‖ accept common rule
must be created for port used for SSH access, port used for HTTP
access and port sued for CGI access.
2) Common Rules
There is no default rule; you can create one as required.
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