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rules per interface. If all six rules in an index are Next rules, the data will be sent to the next
index for filtering.
Filter Type:
You can select
IP/MAC Filter
,
Application
, and
URL Filter
type.
IP/MAC Filter Set Index:
The IP/MAC Filter Set Index from 1 to 12 and each index can set up
to 6 IP Filter.
Interface:
Choices from
PVC0
to
PVC7
and
LAN
.
60
Direction:
Choices are
Both
,
Incoming
and
Outgoing
. Select which direction of data flow
you wish to apply the filters to.
Note
that
Incoming and Outgoing
are from the point of view of
your router, relative to the interface you select.
For WAN
, data coming from outside your
system is considered Incoming and data leaving your system is Outgoing.
For LAN
, data
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leaving your system is considered Incoming and data entering your system is Outgoing.
IP/MAC Filter rule Index:
The IP/MAC Filter rule Index from 1 to 6.
IP/MAC Filter Rule Editing:
Select the IP/MAC Filter Rule Index you wish to modify.
Active:
Toggle this rule index on or off with Yes or No, respectively.
Source IP Address:
Enter the source IP address you wish to deny access to your system.
Subnet Mask:
Enter the subnet mask of the source IP address.
Port Number:
Enter the port number of the source IP address. Note that 0 means all that ports
are allowed.
Destination IP Address:
Enter the destination IP address that you wish to deny access to
your system.
Subnet Mask:
Enter the subnet mask of the destination IP address
Port Number:
Enter the port number of the destination IP address. Note that 0 means that all
ports are allowed
Protocol:
Select the protocol to filter. Choices are TCP, UDP, and ICMP.
Rule Unmatched:
Choices are
Forward
and
Next.
Select what happens to the data in
question if the rule you are currently editing is unmatched. Next means that the data is then
compared to the next IP filter rule. Forward means that the data will be allowed into your
system. Note that a Forward rule should be the last rule, as no data will be compared to rules
after a Forward rule.
IP/MAC Filter Set Index:
Select the IP/MAC filter set you wish to view.
61
For Example
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Please follow below steps to set your IP Filter:
1.
IP Filter Set Editing
:
Choose your
IP Filter Set Index
, Interface and Direction options.
Remember, Interface and Direction functions are affected with IP Filter Set Index
. EX: if
your 1
st
index set of IP filter set PVC0 as Interface and Outgoing as Direction, so the list of
1
st
IP Filter will be PVC0 and Outgoing as their settings.
2.
IP Filter Rule Editing:
Select the
IP Filter Rule Index
(up to 6 numbers for each set index)
and choose
Active
option.
As below example,
Source IP Address
is 192.168.1.4,
Subnet Mask
is 255.255.255.255,
Destination IP Address
&
Subnet Mask
is 0.0.0.0,
Port Number
is 80. And,
Protocol
sets TCP. From this setting, it filters 192.168.1.14, so it
cannot access the web.
Notice
, each IP Filter Set Index can has up to 6 filters IP. At “
Rule
Unmatched
” option, you must choose
NEXT
until the last filter IP choose
Forward
.
3.
After every setting is done, click
SAVE
to continue next IP Filter Editing.
62
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4.5.3
SNMP
The
Simple Network Management Protocol (SNMP)
is used for exchanging information
between network devices. It enables a host computer to access configuration, performance,
and other system data that resides in a database on the modem. The host computer is called a
management station
and the modem is called an
SNMP agent
. The data that can be accessed
via SNMP is stored in a
Management Information Database
(MIB) on the modem.
Get Community:
Select to set the password for incoming Get- and GetNext request from
management station.
Set Community:
Select to set the password for incoming Set request from management
station.
4.5.4
UPnP
UPnP (Universal Plug and Play)
is a distributed, open networking standard that uses
TCP/IP for simple peer-to-peer network connectivity between devices. An UPnP device can
dynamically join a network, obtain an IP address, convey its capabilities and learn about other
devices on the network. In turn, a device can leave a network smoothly an automatically when
it is no longer in use. UPnP broadcasts are only allowed on the LAN.
UPnP (Universal Plug and Play):
You can choose
“Activated”
or
“Deactivated”
option from
this session.
63
Auto-Configured (by UPnP Application):
UPnP network devices can automatically
configure network addressing, announce their presence in the network to other UPnP devices
and enable exchange of simple product and service descriptions. Choose
“Activated”
option
to allow UPnP-enabled applications to automatically configure the ADSL Router so that they
can communicate through the ADSL Router, for example by using NAT traversal, UPnP
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applications automatically reserve a NAT forwarding port in order to communicate with another
UPnP enabled device; this eliminates the need to manually configure port forwarding for the
UPP enabled application.
If you don’t want to make configuration changes through UPnP,
just choose
“Deactivated”
.
SAVE
: Click
SAVE
to save the setting to the ADSL Router.
4.5.5
DDNS
64
The
Dynamic Domain Name System
allows you to update your current dynamic IP address
with one or many dynamic DNS services so that anyone can contact you (in NetMeeting,
CU-SeeMe, etc.). You can also access your FTP server or Web site on your own computer
using a DNS-like address (for instance myhost.dhs.org, where my host is a name of your
choice) that will never change instead of using an IP address that changes each time you
reconnect. Your friends or relatives will always be able to call you even if they don't know your
IP address. First of all, you need to have registered a dynamic DNS account with
www.dyndns.org. This is for people with a dynamic IP from their ISP or DHCP server that
would still like to have a DNS name. The Dynamic DNS service provider will give you a
password or key.

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