D-Link DSR-250N, User Manual

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Unified Services Router
User Manual
68

Service: ANY means all traffic is affected by this rule. For a specific
service the drop down list has common services, or you can select a
custom defined service.

Action & Schedule: Sel ect one of the 4 actions that this rule defines:
BLOCK always, ALLOW always, BLOCK by schedule otherwise
ALLOW, or ALLOW by schedule otherwise BLOCK . A schedule must
be preconfigured in order for it to be available in the dropdown list to
assign to this rule.

Source & Destination users: For each relevant category, select the users
to which the rule applies:

Any (all users)

Single Address (enter an IP address)

Address Range (enter the appropriate IP address range)

Log: traffic that is filtered by this rule can be logged; this requires
configuring the router‘s logging feature separately.

QoS Priority: Outbound rules (where To Zone = insecure WAN only)
can have the traffic marked with a QoS priority tag. Select a priority
level:

Normal-Service: ToS=0 (lowest QoS)

Minimize-Cost: ToS=1

Maximize-Reliability: ToS=2

Maximize-Throughput: ToS=4

Minimize-Delay: ToS=8 (highest QoS)
6.
Inbound rules can use Destination NAT (DNAT) for managing traffic from the WAN.
Destination NAT is available when the To Zone = DMZ or secure LAN.

With an inbound allow rule you can enter the internal server address
that is hosting the selected service.

You can enable port forwarding for an incoming service specific rule
(From Zone = WAN) by selecting the appropriate checkbox. This will
allow the selected service traffic from the internet to reach the
appropriate LAN port via a port forwarding rule.

Translate Port Number: With port forwarding, the incoming traffic to
be forwarded to the port number entered here.