Chapter 3 Basic Router Configuration

Configuring Static Routes

Verifying Configuration

To verify that you have properly configured the loopback interface, enter the show interface loopback command. You should see verification output similar to the following example.

Router# show interface loopback 0 Loopback0 is up, line protocol is up

Hardware is Loopback

Internet address is 200.200.100.1/24

MTU 1514 bytes, BW 8000000 Kbit, DLY 5000 usec, reliability 255/255, txload 1/255, rxload 1/255

Encapsulation LOOPBACK, loopback not set

Last input never, output never, output hang never Last clearing of "show interface" counters never Queueing strategy: fifo

Output queue 0/0, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

0 packets input, 0 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 0 packets output, 0 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 output buffer failures, 0 output buffers swapped out

Another way to verify the loopback interface is to ping it:

Router# ping 200.200.100.1 Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 200.200.100.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

Configuring Static Routes

Static routes provide fixed routing paths through the network. They are manually configured on the router. If the network topology changes, the static route must be updated with a new route. Static routes are private routes unless they are redistributed by a routing protocol.

To configure static routes perform these steps, beginning in global configuration mode:

SUMMARY STEPS

1.ip route prefix mask {ip-address interface-type interface-number [ip-address]}

2.end

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Cisco Systems CISCO881SECK9 manual Configuring Static Routes, Verifying Configuration

CISCO881SECK9 specifications

The Cisco Systems CISCO881SECK9 is a robust and flexible router designed to cater to the needs of small to medium-sized businesses and branch offices. It is part of the Cisco 8800 series, known for its powerful performance, security features, and advanced functionalities, making it suitable for various networking applications.

One of the standout features of the CISCO881SECK9 is its integrated security capabilities. With a built-in Cisco IOS Firewall and comprehensive security features such as intrusion prevention systems (IPS), secure virtual private network (VPN) services, and support for advanced encryption protocols, businesses can confidently protect their data and communications. This level of security is crucial in today’s cyber threat landscape, where data breaches and cyberattacks can have severe implications.

Another key characteristic of the CISCO881SECK9 is its support for multiple WAN connectivity options, including Ethernet, DSL, and 3G/4G cellular connections. This versatility allows organizations to choose their preferred internet connection method, providing reliable and continuous connectivity. The device also supports load balancing across multiple WAN links, which helps optimize bandwidth utilization and enhance the overall network performance.

The router also features a range of integrated services, including voice, video, and data services, which are essential for modern business operations. With support for Voice over IP (VoIP) and video conferencing, the CISCO881SECK9 ensures that organizations can maintain effective communication and collaboration among employees, partners, and clients. This dual functionality enhances productivity while simplifying network management.

In terms of performance, the CISCO881SECK9 is equipped with advanced Quality of Service (QoS) features that prioritize critical applications and ensure optimal performance even during peak traffic periods. This capability is particularly important for businesses that rely on real-time applications such as video conferencing and VoIP, ensuring high-quality service delivery.

Moreover, the router's scalability allows organizations to grow without needing to overhaul their entire network infrastructure. It supports various expansion modules, providing flexibility to add additional features and capabilities as business needs evolve.

With its combination of security, performance, and integrated services, the Cisco Systems CISCO881SECK9 stands out as a reliable choice for enterprises looking to enhance their networking capabilities while ensuring a secure and scalable infrastructure. Its thoughtful design, robust features, and adaptability make it suitable for a wide range of business applications, enabling companies to thrive in a fast-paced digital landscape.