3com 8807 Reference Guide

C

HAPTER

 25: OSPF C

ONFIGURATION

 C

OMMANDS

ip-mask: IP address wildcard (similar to the complement of the IP address mask), 
which also supports IP address mask input.

Use the network command to configure the interfaces running OSPF.

Use the undo network command to cancel the interfaces running OSPF.

By default, interfaces do not belong to any OSPF area.

With the two parameters, ip-address and ip-mask, one or more interfaces can be 
configured as an area. To run the OSPF protocol on one interface, the main IP 
address of this interface must belong to the network segment specified by this 
command. If only the secondary IP address of the interface is in the range of the 
network segment specified by this command, this interface will not run OSPF.

Related command: ospf.

# Specify the interfaces whose main IP addresses are in the segment range of 
10.110.36.0 to run OSPF and specify the number of the OSPF area (where these 
interfaces are located) as 6.

[3Com-ospf-1] area 6

 

[3Com-ospf-1-area-0.0.0.6] network 10.110.36.0.0 0.0.0.255 

nssa [ default-route-advertise ] [ no-import-route ] [ no-summary ]*

OSPF area view

default-route-advertise: Imports default route to NSSA area.

no-import-route: Configures not to import route to NSSA area.

no-summary: ABR is disabled to transmit Summary_net LSAs to the NSSA area.

Use the nssa command to configure the type of an OSPF area as a NSSA area.

Use the undo nssa command to cancel the function.

By default, NSSA area is not configured.

For all the routers connected to the NSSA area, the command nssa must be used 
to configure the area as the NSSA attribute.

The default-route-advertise keyword is used to generate default type-7 LSA. No 
matter whether there is route 0.0.0.0 in routing table on ABR, type-7 LSA default