SmartFlex
4.9 Firewall Configuration
The first security element for incoming packets is a check of the enabled source IP ad-
dresses and destination ports. There is independent IPv4 and IPv6 firewall since there is dual
stack IPv4 and IPv6 implemented in the router. If you click the Firewall item in the Configura-
tion menu on the left, it will expand to IPv4 and IPv6 options and you can click IPv6 to enable
and configure the IPv6 firewall – see Figure below. The configuration fields have the same
meaning in the IPv4 Firewall Configuration and IPv6 Firewall Configuration forms.
Figure 31: Firewall Configuration – IPv6 Firewall
You can specify the rules for IP addresses, protocols and ports to allow or deny the access
to the router and internal network connected behind the router. To enable this function, tick the
Enable filtering of incoming packets check box located at the top of the IPv4 (IPv6) Firewall
Configuration page. Accessibility is chec ked against the IP address table. This means that
access is permitted only to addresses allowed in the table. It is possible to specify up to eight
remote IP addresses for access/denial. You can specify the following parameters:
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