HP-UX Routing Services Administrator's Guide HP-UX 11i v2, HP-UX 11i v3 (B2355-91153, November 2011)

10. Determine if routing packets are authenticated for each area. See “Authentication” (page 37)
for more information
11. Identify AS boundary routers. See “AS External Routes (AS Boundary Routers Only)” (page 39)
for more information.
Enabling OSPF
The default router identifier used by OSPF is the address of the first interface on the router
encountered by gated. To set the router identifier to a specific address, specify the routerid
interface statement in the Definition class of the /etc/gated.conf file.
NOTE: You must enable the OSPF protocol only for routers. When the OSPF protocol is enabled
for a system, the system is treated as a router, and not a host, by other hosts.
You can enable the OSPF protocol using the ospf statement in the Protocol class of the
/etc/gated.conf file. The clause yes (or on) informs gated to enable the OSPF protocol at
this node and to process all OSPF packets arriving from other nodes. If you do not specify an OSPF
line in your configuration file, ospf no is assumed. The clause no (or off) informs gated to
disable the OSPF protocol on this node.
The following is an example to enable OSPF:
ospf yes { ... }
The following sections explain other statements defined for the OSPF protocol configuration.
Defining Areas
Each OSPF router is associated with one or more areas. The area statement identifies an OSPF
area. The value is in the form of a dotted quad, or a number between 1 and 4294967295. To
define an area, you must specify the following:
• The addresses of the networks that make up the area.
• The router interfaces used to communicate with the area.
The configuration of an area border router contains multiple area definitions; a different router
interface is defined for each area. Figure 7 shows an example of an area border router that is
connected to area 0.0.0.1 through interface 193.2.1.33 and to area 0.0.0.2 through interface
193.2.1.17.
Figure 7 Area Border Router Configuration Example
The following is an example of the area definitions in the router’s /etc/gated.conf file:
ospf yes {
area 0.0.0.1 {
interface 193.2.1.33 {
...
} ;
} ;
area 0.0.0.2 {
interface 193.2.1.17 {
...
} ;
} ;
} ;
30 Configuring gated