What is the command to enter OSPF configuration prompt?

Initial IP Configuration

How do I enter OSPF config mode?

To enable OSPF on a Cisco router and advertise interfaces, the following tasks are required:

1. Use the command router ospf process ID to start OSPF.
2. Use the network command to enable the interfaces.
3. Identify area assignments.
4. (Optional) Assign the router ID.

Which command can be used for configuring an OSPF router ID?

command ospf router-id
To set the router-id, use the command ospf router-id in your OSPF configuration. If your Firebox has multi-WAN enabled, you can configure a loopback interface, and use the IP address of the loopback interface instead of the IP address of the physical interfaces in the dynamic routing configuration.

Which of the following commands can be used to query OSPF configuration of a device?

The show ip ospf database command can be used to display the OSPF LSDB. The show ip route [ospf | subnet mask] command can be used to display OSPF routes in the current routing table. The show ip protocols and show ip ospf interface [brief] commands can be used to display which areas are configured on a device.

Which two commands are used to configure a basic OSPF configuration?

A number of different Cisco IOS OSPF configuration commands are available, but at its most basic, OSPF configuration uses three commands: the router ospf, network, and router-id commands. The router ospf process-id command is the beginning of any Cisco IOS OSPF configuration.

How OSPF works step by step?

When configured, OSPF will listen to neighbors and gather all link state data available to build a topology map of all available paths in its network and then save the information in its topology database, also known as its Link-State Database (LSDB). Using the information from its topology database.

What is the OSPF process ID?

The process ID is the ID of the OSPF process to which the interface belongs. The process ID is local to the router, and two OSPF neighboring routers can have different OSPF process IDs.

How do I manually configure an OSPF router ID?

If you want to change the router ID setting, do the following:

1. Go to the global config context; the CLI prompt appears similar to the following:
2. If OSPF is not enabled, go to Step 3; if OSPF is enabled, use no router ospf to disable OSPF operation.
3. Use ip router-id ip-addr to specify a new router ID.

Which command should be used in OSPF to provide detailed information about every OSPF enabled interface?

The quickest way to verify OSPF interface settings is to use the #show ip(v6) ospf interface command. This command provides a detailed list for every OSPF-enabled interface.

Which of the following commands can be used to check whether OSPF has correctly established?

ping command
Run the ping command to check whether the two switches that need to establish an OSPF neighbor relationship can ping each other successfully and whether packets are lost during a long ping test.

What 4 things in order can be used to configure an OSPF router ID?

OSPF uses the following criteria to select the router ID:

• Manual configuration of the router ID.
• Highest IP address on a loopback interface.
• Highest IP address on a non-loopback interface.

What is OSPF process?

Open Shortest Path First (OSPF) is a routing protocol for Internet Protocol (IP) networks. It uses a link state routing (LSR) algorithm and falls into the group of interior gateway protocols (IGPs), operating within a single autonomous system (AS). It is defined as OSPF Version 2 in RFC 2328 (1998) for IPv4.