20.1.3 Options
Back Route Verify
The term Back Route Verify describes a very simple but powerful function. If a check is ac-
tivated for an interface, incoming data packets are only accepted over this interface if out-
going response packets are routed over the same interface. You can therefore prevent the
acceptance of packets with false IP addresses - even without using filters.
Fig. 171:
Networking
->
Routes
->
Options
The Networking->Routes->Optionsmenu consists of the following fields:
Fields in the Back Route Verify menu.
Field
Description
Mode
Select how the interfaces to be activated for Back Route Verify
are to be specified.
Possible values:
•
; = $ $=3-
: Back Route Verify is activ-
ated for all interfaces.
•
; = $ -.3=3 $=3-
(default value): A list
of all interfaces is displayed in which Back Route Verify is only
enabled for specific interfaces.
•
!-; = $ $=3-
: Back route verify is dis-
abled for all interfaces.
No.
Only for Mode =
; = $ -.3=3 $=3-
20 Networking
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elmeg hybird 120 / hybird 130
