Field
Description
the interface is "up". If the interface is "dormant", then dial and
wait until the interface is "up".
•
Authoritative
: The route can always be used.
•
Dialup and continue
: The route can be used if the inter-
face is "up". If the interface is "dormant", then select and use
the alternative route (rerouting) until the interface is "up".
•
Never dialup
: The route can be used if the interface is
"up".
•
Always dialup
: The route can be used if the interface is
"up". If the interface is "dormant", then dial and wait until the
interface is "up". In this case, an alternative interface with a
poorer metric is used for routing until the interface is "up".
9.1.2 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. 71:
Routing
->
Routes
->
Options
Funkwerk Enterprise Communications GmbH
9 Routing
bintec R200 Series
155
