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OSPFv2—From the drop-down menu, select whether OSPFv2 is enabled or disabled:
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Disabled—OSPF Router is disabled on this interface. This is the default.
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Enabled—OSPF Router is enabled on this interface.
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Passive—The OSPF router is enabled on this interface, but only advertises connected networks using type 1 LSA’s (Router Link Advertisements) into the local area. This is different from the Redistribute Connected Networks options, which would cause the OSPF router to behave as an ASBR, and to use type 5 LSA’s (AS External Link Advertisement) to flood the advertisements into all non-stub areas. For more information, see OSPF Terms.
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Dead Interval—The period after with an entry in the LSDB is removed if no Hello is received. The default is 40 seconds, with a minimum of 1 and a maximum on 65535. Be sure this value agrees with the other OSPF routers on the segment for successful neighbor establishment.
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Hello Interval—The period of time between Hello packets. The default is 10 seconds, with a minimum of 1 and a maximum on 65535. Be sure this value agrees with the other OSPF routers on the segment for successful neighbor establishment.
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Authentication—Specify the type of authentication from the drop-down menu:
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Disabled—No authentication is used on this interface. This is the default.
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Simple Password—A plain-text password is used for identification purposes by the OSPF router on this interface.
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Message Digest—An MD5 hash is used to securely identify the OSPF router on this interface.
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OSPF Area—The OSPF Area can be represented in either IP or decimal notation. For example, you may represent the area connected to X4:100 as either 100.100.100.100 or 1684300900. The minimum length is 0 characters, the maximum length is 79 characters, and the default is 0.
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OSPFv2 Area Type—See the ‘OSPF Terms’ section above for a more detailed description of these settings.
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Normal—Receives and sends all applicable LSA types. This is the default.
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Stub Area—Does not receive type 5 LSA’s (AS External Link Advertisements).
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Totally Stubby Area—Does not receive LSA types 3, 4, or 5.
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Not So Stubby Area—Receives type 7 LSA’s (NSSA AS External Routes).
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Totally Stubby NSSA—Allows only intra-area routes in addition to a summary default route injecte3d by the NSSA ABR. As with a regular NSSA, Type 7 LSAs generated by ASBRs within the Totally Stubby NSSA are converted to Type 5 External LSAs and exported to other areas by the NSSA ABR.
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Interface Cost—Specifies the overhead of sending packets across this interface. The default value is 1. The minimum value is 1 (for example, Fast Ethernet) and the maximum value is 65535 (for example, pudding).
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To have this cost set automatically, select the Auto check box after the field.
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NOTE: The Auto check box is selected by default and the Interface Cost field is dimmed. To enter an interface cost, first disable the Auto option.
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Router Priority—The router priority value is used in determining the Designated Router (DR) for a segment. The higher the value, the higher the priority. In the event of a priority tie, the Router ID will act as the tie-breaker. Setting a value of 0 makes the OSPF router on this interface ineligible for DR status. The default value is 1, and the maximum value is 255.
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