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Chapter 15 Routing Protocols
ISG50 User’s Guide
308
Click Configuration > Network > Routing > OSPF to open the following screen.
Figure 204 Configuration > Network > Routing > OSPF
The following table describes the labels in this screen. See Section 15.3.2 on page 309 for more
information as well.
Table 94 Configuration > Network > Routing Protocol > OSPF
LABEL DESCRIPTION
OSPF Router ID Select the 32-bit ID the ISG50 uses in the OSPF AS.
Default - the highest available IP address assigned to the interfaces is the
ISG50’s ID.
User Defined - enter the ID (in IP address format) in the field that appears
when you select User Defined.
Redistribute
Active RIP Select this to advertise routes that were learned from RIP. The ISG50
advertises routes learned from RIP to Normal and NSSA areas but not to
Stub areas.
Type Select how OSPF calculates the cost associated with routing information from
RIP. Choices are: Type 1 and Type 2.
Type 1 - cost = OSPF AS cost + external cost (Metric)
Type 2 - cost = external cost (Metric); the OSPF AS cost is ignored.
Metric Type the external cost for routes provided by RIP. The metric represents the
“cost” of transmission for routing purposes. The way this is used depends on
the Type field. This value is usually the average cost in the OSPF AS, and it
can be between 1 and 16777214.
Active Static
Route
Select this to advertise routes that were learned from static routes. The
ISG50 advertises routes learned from static routes to all types of areas.
Type Select how OSPF calculates the cost associated with routing information from
static routes. Choices are: Type 1 and Type 2.
Type 1 - cost = OSPF AS cost + external cost (Metric)
Type 2 - cost = external cost (Metric); the OSPF AS cost is ignored.