3Com 4007, Implementation Manual, Page: 460 / 684

460 C
HAPTER
19: O
PEN
S
HORTEST
P
ATH
F
IRST
(OSPF) R
OUTING
The ASBR then generates external link state advertisements for these IP
interfaces.
A router also becomes an ASBR if you have configured either of the
following on the box:
■
A default route metric
■
Any static routes, including configuring a default route
A router never becomes an ASBR if all of the router’s interfaces reside in a
stub area.
This last rule overrides all other cases where a router can become an
ASBR.
You create IP interfaces with the
ip interface
option.
You configure RIP on IP interfaces with the
ip rip
options.
You configure OSPF on IP interfaces with the
ip ospf
options.
You create default route metrics with the
ip ospf defaultRouteMetric
define
option.
You create static routes with the
ip ospf policy
options.