Allied Telesis AT-WR4500 manual Submenu level /routing ospf network, Name AREA-ID, Network Area

AT-WR4500 Series - IEEE 802.11abgh Outdoor Wireless Routers	101
RouterOS v3 Configuration and User Guide

However, areas do not need to be physical connected to backbone. It can be done with virtual link. The name and area-id for this area can not be changed

authentication (none simple md5; default: none) - specifies authentication method for OSPF protocol messages

none - do not use authentication simple - plain text authentication

md5 - keyed Message Digest 5 authentication

default-cost(integer; default: 1) - specifies the default cost used for stub areas. Applicable only to area boundary routers

name (name; default: "") - OSPF area's name

type (default stub; default: default) - a stub area is an area which is out from part with no routers or areas beyond it. A stub area is configured to avoid AS External Link Advertisements being flooded into the Stub area. One of the reason to configure a Stub area is that the size of the link state database is reduced along with the routing table and less CPU cycles are used to process. Any router which is trying access to a network outside the area sends the packets to the default route.

Example

To define additional OSPF area named local_10 with area-id=0.0.10.5, do the following:

[admin@WiFi] routing ospf area> add area-id=0.0.10.5 name=local_10

[admin@WiFi] routing ospf area> print
Flags: X - disabled, I - invalid
#	NAME	AREA-ID	STUB DEFAULT-COST AUTHENTICATION
0	backbone	0.0.0.0		none
1	local_10	0.0.10.5	no 1	none

[admin@WiFi] routing ospf area>

5.3.4 Networks

Submenu level: /routing ospf network

Description

There can be Point-to-Point networks or Multi-Access networks. Multi-Access network can be a broadcast network (a single message can be sent to all routers)

To start the OSPF protocol, you have to define the networks on which it will run and the area ID for each of those networks

Property Description

area (name; default: backbone) - the OSPF area to be associated with the specified address range

network (IP address mask; default: 20) - the network associated with the area. The network argument allows defining one or multiple interfaces to be associated with a specific OSPF area. Only directly connected networks of the router may be specified

￿

You should set the network address exactly the same as the remote point IP address for point-to-point links. The right netmask in this case is /32

Example

To enable the OSPF protocol on the 10.10.1.0/24 network, and include it into the backbone area, do the following:

[admin@AT-WR4562] routing ospf network> add area=backbone network=10.10.1.0/24

[admin@AT-WR4562] routing ospf network> print Flags: X - disabled

#	NETWORK	AREA
0	10.10.1.0/24	backbone

[admin@AT-WR4562] routing ospf>