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24. To enter a Static IP Route [double click] the IP Address/Mask Box and
enter the required IP address for the Static Route. In this instance enter
192.168.0.1/24.
25. [Click] the OK Button to submit the Static IP Route. The "IPPath"
window should now be displayed.
26. To add an IP Filter which is associated with the Account Users Path
[click] the Add Button to the right of the IP Filters Box. This will reveal
the "IP Address Filter" window. [Click] the IP Filters Add Button.
27. To enter an IP Address Filter firstly [double click] the IP Address1/Mask
Box and enter the required IP address of one of filter pair then [double
click] the IP Address2/Mask Box and enter the required IP address of the
other IP address of the filter pair. In this instance enter 192.168.0.0/24 for
IP Address1/Mask and 10.0.0.2/32 for IP Address2/Mask.
Note in the above example we are only allowing those packets coming from
the UNIX Host, 10.0.0.2, to Network 192.168.0.0/24 to create outgoing calls
on the ISDN line to the remote office.
The IP Filters work on a "Forward on Match" principle. Anything that
doesn't match the Address' configured in the IP Filters Table is discarded.
Source and Destination IP addresses on all packets entering the NAS Router
(on any port) destined for the remote Account User are checked for a match
before forwarding. For more information on IP Filtering refer to the Marlin
Router Reference Manual.
28. [Click] the OK Button to submit the IP Filter pair. The "IPPath" window
should now be displayed.
The "IPPath" window should now be exactly the same as that shown at the top
of the next page.
T
UTORIAL
3-19
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