Insys MoRoS ISDN 1.1.1 11-02-06-02-01.005 Benutzerhandbuch

MoRoS Modem/ISDN 

Functions 

June 06 

29 

trigger a dial-up connection. 
In the second line, all IP addresses of the machine may be entered which are not allowed 
to trigger a dial-up connection. 
Data packets sent to the IP addresses in the third line will result in a connection setup. 
Data packets sent to IP addresses in the fourth line will not result in a connection setup. 

Basically, the following applies:  

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  All rules allowing a connection are linked with “OR”. 

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  All rules not allowing a connection are linked with “AND”. 

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  If at least one line has a value, the rule for this line will come into effect. If no 

value is entered, the rule for this line is ignored completely. 

For clarification, please find an example with ports: A dial-up connection is established, if 

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  The sender port is specified in a column in the first line 

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  AND is NOT displayed in a column in the second line 

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  OR the sender port is specified in a column in the third line 

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  AND is NOT displayed in a column in the fourth line. 

For example, if a port is entered in the third line of the port table, connections to this 
destination port will be permitted. This explicit specification will now reject all 
connections to other ports. Vice versa applies as well: If a port is entered in the fourth 
line, all connections to this port are rejected; data packets at all other ports, however, will 
be permitted. 

These settings must be considered in combination with each other. Very complex 
combinations are possible. It is recommended to test the configuration thoroughly for 
logical errors. 

 

Click “OK” to store the above settings.