Ubiquiti EdgeRouter [21/57] Configure the ospf area

Ubiquiti EdgeRouter [21/57] Configure the ospf area
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Chapter 4: Routing Tab EdgeOS
User Guide
Ubiquiti Networks, Inc.
Areas
To enhance scalability, an OSPF network is comprised of
smaller sections called areas. At the minimum, there is the
backbone area, called Area 0.
Add Area To create a new area, click Add Area.
The Create OSPF Area screen appears.
Complete the following:
Area ID This is the number that identifies an area. It can
be an integer or use a format similar to an IPv4 address.
Area Type This defines the routes that are acceptable
inside the area. Select the appropriate option:
- Normal/sec The default type accepts all routes.
- NSSA A NSSA (Not So Stubby Area) network is a
variation of a stub network. It can import external
routes from type 7 Link State Advertisements, which
are NSSA-specific.
- Stub The network has no external routes. Typically, it
has a default route for outbound traffic.
Auth Type Authentication helps secure communication
between routers. Select the appropriate option:
- Off No authentication is used.
- MD5/sec Each router uses a key (password) and key
ID. This is the most secure option because the key is
never transmitted.
- Plain text Each router uses a key. This provides
minimal security because the key is transmitted in
plain text format.
Network Enter the IP address and subnet mask using
slash notation:
<network_IP_address>/<subnet_mask_number>
(example: 192.0.2.0/24).
Click Add New to enter more network addresses.
Click Save to apply your changes.
A table displays the following information about each
OSPF Area. Click a column heading to sort by that
heading.
Area ID The identification number of the area is
displayed.
Area Type The type of area is displayed.
Auth Type The authentication type of the area is
displayed.
Network The network address of the area is displayed.
Actions Click the Actions button to access the following
options:
Config To configure the OSPF Area, click Config. Go to
the Configure the OSPF Area section.
Delete Delete the OSPF Area.
Configure the OSPF Area
After you click Config, the OSPF Area Configuration screen
appears.
Make changes as needed.
Area ID This is the number that identifies an area. It can
be an integer or use a format similar to an IPv4 address.
Area Type This defines the routes that are acceptable
inside the area. Select the appropriate option:
- Normal/sec The default type accepts all routes.
- NSSA A NSSA (Not So Stubby Area) network is a
variation of a stub network. It can import external
routes from type 7 Link State Advertisements, which
are NSSA-specific.
- Stub The network has no external routes. Typically, it
has a default route for outbound traffic.
Auth Type Authentication helps secure communication
between routers. Select the appropriate option:
- Off No authentication is used.
- MD5/sec Each router uses a key (password) and key
ID. This is the most secure option because the key is
never transmitted.
- Plain text Each router uses a key. This provides
minimal security because the key is transmitted in
plain text format.

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