VDSL/ADSL2+ Dual Band AC1600 Gigabit Gateway with VoIP – NF18ACV
UG01040 v 1.04 December 2018
Incoming IP Filtering
When the firewall is enabled on a WAN or LAN interface, all incoming IP traffic is BLOCKED. However, some IP traffic can be ACCEPTED by setting up ‘incoming’ filters.
The Incoming IP Filtering Setup page contains a table of all currently defined Incoming IP filters and their details.
To create a new Incoming IP filter, click Add. The Add-Incoming IP Filter page will be displayed.
Filters must contain at least one condition.
A rule will only be effective if all the conditions specified in the filter
rule are satisfied.
Enter a name to identify the filtering rule.
The name can have no spaces or special characters.
Select the IP version to apply the filter to: IPv4 or IPv6
Select the protocol type to block: UDP/TCP, UDP, TCP or ICMP
Source IP Address(/prefix length)
Enter the IP Address of the Remote Server/Host from which to allow connections.
Note that you must also enter the prefix length and not the subnet mask.
Source Port (port or port:port)
Enter the port number used by the application to allow or a range of ports that the
application to be allowed would be using.
Destination IP Address(/prefix
length)
Enter the IP Address of the Host on the LAN to which connections should be allowed.
Note that you must also enter the prefix length and not the subnet mask.
Destination Port (port or port:port)
Enter the destination port number used by the application to allow or a range of ports
that the application to be allowed would be using.
WAN/LAN Interfaces
(Configured in Routing mode and
with firewall enabled)
Select one or more (or Select All) WAN/LAN interfaces displayed below to apply this
rule:
Select All
ETH WAN/eth4.1
ADSL_8_35/pppoa0
br0/br0
Click to save and activate the new filter.
The new rule will then be displayed in the Incoming IP Filtering Setup table list.
To delete a rule from the Incoming IP Filtering Setup table click its Delete button.
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