Chapter 13 Routing Protocols

Figure 204 Network > Routing > OSPF > Edit

The following table describes the labels in this screen.

Table 97 Network > Routing > OSPF > Edit

LABEL

DESCRIPTION

Area ID

Type the unique, 32-bit identifier for the area in IP address format.

 

 

Type

Select the type of area.

 

Normal - This area is a normal area. It has routing information about the OSPF AS

 

and about networks outside the OSPF AS.

 

Stub - This area is an stub area. It has routing information about the OSPF AS but

 

not about networks outside the OSPF AS. It depends on a default route to send

 

information outside the OSPF AS.

 

NSSA - This area is a Not So Stubby Area (NSSA), per RFC 1587. It has routing

 

information about the OSPF AS and networks that are outside the OSPF AS and

 

are directly connected to the NSSA. It does not have information about other

 

networks outside the OSPF AS.

 

 

Authentication

Select the default authentication method used in the area. This authentication

 

protects the integrity, but not the confidentiality, of routing updates.

 

None uses no authentication.

 

Text uses a plain text password that is sent over the network (not very secure).

 

MD5 uses an MD5 password and authentication ID (most secure).

 

 

Text

This field is available if the Authentication is Text. Type the password for text

Authentication

authentication. The key can consist of alphanumeric characters and the

Key

underscore, and it can be up to 8 characters long.

 

 

MD5

This field is available if the Authentication is MD5. Type the default ID for MD5

Authentication ID

authentication in the area. The ID can be between 1 and 255.

 

 

MD5

This field is available if the Authentication is MD5. Type the default password for

Authentication

MD5 authentication in the area. The password can consist of alphanumeric

Key

characters and the underscore, and it can be up to 16 characters long.

 

 

Virtual Link

This section is displayed if the Type is Normal. Create a virtual link if you want to

 

connect a different area (that does not have a direct connection to the backbone)

 

to the backbone. You should set up the virtual link on the ABR that is connected to

 

the other area and on the ABR that is connected to the backbone.

 

 

#

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

 

 

Peer Router ID

Type the 32-bit ID (in IP address format) of the other ABR in the virtual link.

 

 

294

 

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