Kerio Tech KERIO WINROUTE FIREWALL 6, Руководство администратора

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6.2 Connection with a single leased link - dial on demand
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Figure 6.6 Configuration of interfaces — an on-demand dial link
The Internet interfaces group can include multiple dial-ups. However, only one of these links
can be set for on-demand dialing. If another link is dialed manually, WinRoute will route
packets to the corresponding destination network in accordance with the system routing table
(see also chapter 18.1 ) and perform IP address translation ( NAT ). However, such configuration
would be of any use. It is therefore recommended to keep only a single on-demand-dial link
in the Internet interfaces group.
To change the dial-on-demand link, use the corresponding option in the interface edit dialog
(see chapter 5 ) or use the context menu (by right-clicking on the link).
Warning
In the Dial on Demand mode, default gateway must NOT be set on any network interface of
the firewall! On-demand dialing is based on absence of the default gateway (if no route exist
in the routing table where a packet would be directed, WinRoute create a default gateway by
dialing an Internet link).
Dialing options
For dial-ups, the interface settings dialog (see chapter 5 ) includes also the Dialing settings tab
where specific parameters for dial-up connections can be set:
Login information
If login data for the particular dial-up connection change, it can be updated here or it is
also possible to use the data saved in the operating system (if saved there).
Time intervals for persistent connection and persistent hang-up
Under certain circumstances it may be needed that dial on demand works only within
a certain time period (typically in working hours) and that the link is hung-up outside
this range. With respect to cost rates of individual providers, it can sometimes be most