Dual Trunk E1 Router

AREAID=A.B.C.D<0-4294967295>

A.B.C.D= The IPv4 specification of the address for the stub. <0-4294967295>= The area identification number for the stub. NAME The name of the configured access list.

Command Mode: Router mode

Usage

In conjunction with IP access list, this command is used to configure routes outside the area that will be advertised into this area. This command is only applied when generating summary LSAs (type 3).

Examples

ospfd# configure terminal

ospfd(config)# access-list list1 deny 172.22.0.0/8 ospfd(config)# router ospf 100 ospfd(config-router)#area 1 import-list list1

Related Commands

access list

area range

Use the area range command to summarize OSPF routes at an area boundary.

Use the no form of this command to disable this function.

Command Syntax

area AREAID range ADDRESS (advertisenot-advertiseSUBSTITUTE) no area AREAID range

AREAID= A.B.C.D<0-4294967295>

A.B.C.D= The IPv4 address specification of the address for the stub. <0-4294967295>= The area identification number for the stub. ADDRESS= A.B.C.D/M The area range prefix and length. advertise Advertises this range.

not-advertise Does not advertise this range.

SUBSTITUTE = substitute A.B.C.D/M Announce area range as another prefix. A.B.C.D/M = Network prefix to be announced instead of range.

Default

Disabled

Command Mode

Router mode

Usage

The area range command is used to summarize intra-area routes for an area. The single summary route is then advertised to other areas by the Area Border Routers (ABRs). Routing information is condensed at area boundaries and outside the area. If the network numbers in an area are assigned in a way such that they are contiguous, the ABRs can be configured to advertise a summary route that covers all the individual networks within the area that fall into the specified range.

Examples

ospfd# configure terminal ospfd(config)# router ospf 100 ospfd(config-router)# area 1 range 192.16.0.0/24

Related Commands

area shortcut

Use the area shortcut command to configure the short-cutting mode of an area.

Use the no form of this command to disable this function.

Command Syntax

area AREAID shortcut (defaultenabledisable) no area AREAID shortcut (enabledisable) AREAID= A.B.C.D<0-4294967295>

A.B.C.D= The IPv4 address specification of the address for the stub.

Dual Trunk E1 Router User’s Guide

TECHNICAL: 0118 96 56 000

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Black Box LRU4240 Area range, Command Mode, Area shortcut, Dual Trunk E1 Router User’s Guide Technical 0118 96 56 163