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Operating Instruction
8.2 Filters (access control using IP address)
From the Main Menu, select the
Access Management
menu
item, and then the
Filter
sub-item.
A packet fi lter is an application for fi ltering the incoming and
outgoing data traffi c in a computer network. This is generally
used to protect the network from attackers, however the
fi lter also protects against unwanted outgoing packets. This
means, for example, that you can prevent your own computer
from spreading unwanted and undetected viruses on the
Internet.
Filter Type:
In this fi eld you can choose between two
different fi lters – the
Application Filter
and
the
URL Filter
.
IP/MAC Filter Set Editing:
IP/MAC Filter Set Index:
You can choose a setting from 1 to 12.
Interface:
Use the same setting as entered in the Virtual
Circuit fi eld on the Interface Setup page.
Direction:
Incoming:
Incoming packets are fi ltered
Outgoing:
Outgoing packets are fi ltered
Both:
Incoming and outgoing packets are
fi ltered using the preset rule.
IP/MAC Filter Rule Editing:
IP Rule Index:
You can set from 1 to 6 rules
Rule Type:
With this option you can choose between
IP
and
MAC.
This means that when you choose
IP
the fi lter applies to
a specifi c
IP address
, and for
MAC
, you have to enter the
MAC address
of the network card or WLAN adapter
of the computer to which the fi lter should apply.
Active:
Yes
means that Rule 1, for example, is switched on.
No
means that Rule 1, for example, is switched off. You can thus switch individual rules on or off, if required.
Source IP Add:
IP address of the source computer. If you enter 0.0.0.0 this setting is ignored.
Subnet Mask:
Subnet mask of the source computer.
Port:
Enter the number of the port to which the rule is to apply. If you enter 0, this setting is ignored.
Destination IP Add:
IP address of the destination computer. If you enter 0.0.0.0 this setting is ignored.
Subnet Mask:
Subnet mask of the destination computer.
Port:
Enter the number of the port to which the rule is to apply. If you enter 0, this setting is ignored.
Protocol:
Enter the IP protocol in this fi eld, e.g. TCP, UDP or ICMP.
Click ->
SAVE
at the bottom of the window to save your
settings.
8.2.1 Application fi lters
You use this option to block/allow Internet access for
predefi ned programs.
You have to activate the fi lter fi rst. To do so, select the
menu item Application Filter ->
Activated
. Only then will
the additional settings take effect.
Now select the program/protocol for which you want to
block/allow access.
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