Port Filtering - Zte H108N Configuration Manual

3.3.3

Port filtering

When there is no private NAT in your network because all your computers have
public IP, like it may happen with IPv6, then there is no need to "port forwarding".
Instead you should allow the incoming traffic passing through the router, by the
"port filtering" function. By default no traffic is allowed to come into your network
for security reasons, but if you start creating rules this behavior may change.
For this reason we recommend you create a firewall filter to "drop" everything,
and then add any exception rule that you wish (like allow incoming traffic to some
public IP or to port 21). Currently only some operating systems fully support IPv6,
starting at Windows Vista.
Normally this scenario ("no-NAT / port filtering") does not happen at home
internet users yet, and you should not worry about this configuration.
If you cannot configure this function due to with an "invalid value!" error, please
use Internet Explorer in its latest version and repeat the operation.
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ZTE H108N V.2.1 Configuration manual
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