D-Link DSL-X1852E - Ipv4;Ipv6 Filter

64D-Link DSL-X1852E User Manual
Section 4 - Conguration
IPv4/IPv6 Filter
The Firewall contains ltering functions to lter trac based on the network protocols and
source and destination IP addresses.
Go to Features > Firewall, then click the IPv4 Filter tab or the IPv6 Filter tab to congure
rules for trac ltering. To congure a rule to lter unwanted trac, rst enable this feature
by clicking Enable for either Upstream Port Filtering Rules for trac that is sent out of the
router (LAN to WAN) or Downstream Port Filtering Rules for trac that is received by the
router from an external network (WAN to LAN).
Congure the following settings
:
Filtering Mode:
Select either
Blacklist or Whitelist to deny or permit the following
ltering list.
Filter Name: Enter a name for the ltering rule.
Protocol: Select the network protocol for the trac: TCP/UDP, TCP, UDP, or
ICMP (or ICMPv6 for IPv6).
Source IP
Address/Port:
Enter the starting source IP address (e.g. 1.1.1.1 for IPv4 or 2001::1
for IPv6) and starting port that the rule will apply to. Depending on
whether it is a upstream or downstream trac, this can be either a
WAN or LAN IP address. Both a single IP address and a range of IP
addresses can be used.
End Source IP
Address/Port:
Enter the ending source IP address (e.g. 1.1.1.5 for IPv4 or 2001::5
for IPv6) and ending port that the rule will apply to. For a single
IP address assignment, enter the same address as the starting IP
address. Depending on whether it is a upstream or downstream
trac, this can be either a WAN or LAN IP address.
Source Subnet
Mask/Prex
Length:
Enter the subnet mask of the source IP address for IPv4 addressing
scheme (four 8-bit octets). Or enter the prefix length for IPv6
addressing scheme (1-128).