Chapter 13 Routing Protocols

Table 73 Network > Routing Protocol > OSPF (continued)

LABEL

DESCRIPTION

Active

Select this check box to advertise routes that were learned from the indicated

 

source.

 

• If you select this for RIP, the ZyWALL advertises routes learned from RIP to

 

Normal and NSSA areas but not to Stub areas.

 

• If you select this for static routes, the ZyWALL advertises routes learned from

 

static routes to all types of areas.

 

 

Route

This field displays other sources of routing information that the ZyWALL can

 

advertise in the OSPF AS.

 

 

Type

Select how OSPF calculates the cost associated with routing information from the

 

indicated source. 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 the indicated source. 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.

 

 

Area

This section displays information about OSPF areas in the ZyWALL.

 

 

#

This field is a sequential value, and it is not associated with a specific area.

 

 

Area

This field displays the 32-bit ID for each area in IP address format.

 

 

Type

This field displays the type of area. This type is different from the Type field above.

 

 

Authentication

This field displays the default authentication method in the area.

 

 

Add icon

This column provides icons to add, edit, and remove areas.

 

To add an area, click the Add icon at the top of the column. The OSPF Area Add/

 

Edit screen appears.

 

To edit an area, click the Edit icon next to the area. The Area Add/Edit screen

 

appears.

 

To delete an area, click on the Remove icon next to the area. The web

 

configurator confirms that you want to delete the area before doing so.

 

 

13.4.2 OSPF Area Add/Edit

The OSPF Area Add/Edit screen allows you to create a new area or edit an existing one. To access this screen, go to the OSPF summary screen (see Section 13.4.1 on page 241), and click either the Add icon or an Edit icon.

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ZyWALL USG 300 User’s Guide