D-Link DSL-2642B Router Manual PDF (Setup & Configuration Guide)

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Section 3 – Configuration

D-Link DSL-2642B User Manual

65

Outbound Filtering

To access Outbound Filtering, point to the

Filtering Options

on the left window and click

Outbound IP Filtering

submenu, or click the

Outbound

IP Filtering

button in the Filtering Options window.

The Outbound Filter allows you to create a filter rule to block outgoing IP

traffic by specifying a filter name and at least one condition on this

window. All of the specified conditions in this filter rule must be satisfied

for the rule to take effect. Filters are used to allow or deny LAN or WAN

users from accessing the Internet or your internal network.

Click the

Add

button to see the Add Outbound IP Filtering section, enter

the information in the section. Explanations of parameters are described

below. Click the

Apply

button to add the entry in the Active Outbound IP

Filtering table. To remove an entry in the table, click the

corresponding

button. To modify a table entry, click the

corresponding

button, make the desired changes, and then click the

Apply

button.

Page 67 / 109

Section 3 – Configuration

D-Link DSL-2642B User Manual

66

Filters

Description

Parameter

Filter Name

Enter a name for the new filter.

Protocol

Select the transport protocol (

TCP and UDP

,

TCP

,

UDP

,

ICMP

or

Any

) that will be used for the filter rule.

Select either

Single IP, Network IP

or

IP Range

to

show different items.

Source/Destination

IP Address

This is the single IP address

which you are creating the filter

rule.

Source/

Destination

IP Type

Source/Destination

IP Address &

Source/Destination

Subnet Mask

This is the Network IP address

and its associated subnet for

which you are creating the filter

rule.

Start/End

Source/Destination

IP Address

Enter the start and end IP address

for the range of IP addresses

which you are creating the filter

rule.

Source/

Destination

Port

The Source/Destination Port is the TCP/UDP port on

either the LAN or WAN depending on if you are

configuring an Outbound or Inbound Filter rule.

WAN

Interface

Select the WAN interfaces you want to apply for this

rule.

Page 68 / 109

Section 3 – Configuration

D-Link DSL-2642B User Manual

67

Bridge Filtering

To access Bridge Filtering, point to the

Filtering Options

on the left window and click

Bridge Filtering

submenu, or click the

Bridge Filtering

button in the Filtering Options window.

Bridge filters are used to block or allow various types of packets through

the WAN/LAN interface. This may be done for security or to improve

network efficiency. The rules are configured for individual devices based

on MAC address. Filter rules can be set up for source, destination or

both. You can set up filter rules and disable the entire set of rules without

loosing the rules that have been configured.

Select Bridge Filtering Global Policy:

ALLOW all packets but DENY

those matching any of the specific rules listed

or

DENY all packets

but ALLOW those matching any of the specific rules listed

for the

rules that configured below.

To remove an entry in the table, click the corresponding

button. To

modify a table entry, click the corresponding

button, make the

desired changes, and then click the

Apply

button.

Page 69 / 109

Section 3 – Configuration

D-Link DSL-2642B User Manual

68

Click the

Add

button to see the Add Bridge Filter section. Select a

protocol (PPPoE, IPv4, IPv6, IPX or IGMP) in the

Protocol Type

list,

type in a Source MAC, a Destination MAC or both in the entry fields.

Select a direction (LAN=>WAN, WAN=>LAN, or LAN<=>WAN) in the

Frame Direction

list. Select the WAN interface you want to apply for this

rule. Click the

Apply

button to add the entry in the Active Bridge Filters

table.

Page 70 / 109

Section 3 – Configuration

D-Link DSL-2642B User Manual

69

DNS Setup

To access the

DNS

window, click the

DNS

button in the

Advanced

directory.

The Router can be configured to relay DNS settings from your ISP or

another available service to workstations on your LAN. When using DNS

relay, the Router will accept DNS requests from hosts on the LAN and

forward them to the ISP’s, or alternative DNS servers. DNS relay can

use auto discovery or the DNS IP address can be manually entered by

the user. Alternatively, you may also disable the DNS relay and

configure hosts on your LAN to use DNS servers directly. Most users

who are using the Router for DHCP service on the LAN and are using

DNS servers on the ISP’s network, will leave DNS relay enabled (either

auto discovery or user configured).

If you have not been given specific DNS server IP addresses or if the

Router is not pre-configured with DNS server information, select the

Obtain DNS server address automatically

option. Auto discovery DNS

instructs the Router to automatically obtain the DNS IP address from the

ISP through DHCP. If your WAN connection uses a Static IP address,

auto discovery for DNS cannot be used.

If you have DNS IP addresses provided by your ISP, click the

Use the

following DNS server addresses

radio button and enter these IP

addresses in the available entry fields for the Preferred DNS Server and

the Alternative DNS Server. When you have configured the DNS

settings as desired, click the

Apply

button.

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