Dynamic Routing Implementation; Ospf Process; Dynamic Routing Policy - D-Link DFL-1600 User Manual

10.5. Dynamic Routing Implementation

10.5 Dynamic Routing Implementation
In D-Link firewalls, the implementation of dynamic routing involves two
primary configuration tasks: OSPF process & dynamic routing policy.
OSPF functionality is only available in the D-Link firewall modules
DFL-800/1600/2500.
10.5.1

OSPF Process

OSPF process configured in the firewall groups OSPF participating
firewalls and routers into OSPF areas. Each process enabled on a router is
given a unique Router ID in an IP address format and an authentication
method is chosen.
The areas are defined on the basis of the firewall's interfaces. An interface
that belongs to an area has a Routing Priority to be used for the area's DR
election. The interface can either be used for broadcast, point-to-point, or
point-to-multipoint communication. The broadcast interface learns
neighboring routers automatically by flooding "Hello" packets, while for
point-to-point or point-to-multipoint interface, one or more specific
neighbors need to be configured for the interface manually. Routing metrics
used for OSPF can also be set or modified on an interface to interfere in the
OSPF path determination.
Once the OSPF process is properly configured for the firewall, it can begin
to talk with other firewalls/routers using OSPF algorithm, and learn the
link-state information of the network.
10.5.2

Dynamic Routing Policy

Based on the routing information learned by the OSPF process, dynamic
routing policy forms a filter to the information and tells the firewall what to
do with those knowledge by defined actions.
A Dynamic Routing Policy rule filters statically configured or OSPF
learned routes according to parameters like the origin of the routes,
destination, metric, and etc. The matched routes can be controlled by the
Note
D-Link Firewalls User's Guide
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