Chapter 5 CLI Tips, Techniques, and Shortcuts

CLI Tips and Shortcuts

F I N A L D R A F T — C i s c o C o n f i d e n t i a l

Note

The number ranges (within the angle brackets) are inclusive ranges.

 

 

 

 

Step 2

Type the access list name list1, followed by a space and another question mark, to display the arguments

 

 

 

that apply to the keyword and brief explanations:

 

 

 

RP/0/RSP0/CPU0:router(config)# ipv4 access-list list1 ?

 

 

 

<1-2147483646> Sequence number for this entry

 

 

 

deny

Specifies packets to reject

 

 

 

permit

Specifies packets to forward

 

 

 

remark

Comment for access list

 

 

 

<cr>

 

 

 

 

RP/0/RSP0/CPU0:router(config)#ipv4 access-list list1

Step 3

Type the deny option and a question mark to see more command options:

 

 

 

RP/0/RSP0/CPU0:router(config)# ipv4 access-list list1 deny ?

 

 

 

<0-255>

An IPv4 Protocol Number

 

 

 

A.B.C.D

Source IP address or prefix

 

 

 

ahp

Authentication Header Protocol

 

 

 

any

Any source host

 

 

 

eigrp

Cisco's EIGRP Routing Protocol

 

 

 

esp

Encapsulation Security Payload

 

 

 

gre

Cisco's GRE Tunneling

 

 

 

host

A single source host

 

 

 

icmp

Internet Control Message Protocol

 

 

 

igmp

Internet Gateway Message Protocol

 

 

 

igrp

Cisco's IGRP Routing Protocol

 

 

 

ipinip

IP in IP tunneling

 

 

 

ipv4

Any IPv4 Protocol

 

 

 

nos

KA9Q NOS Compatible IP over IP Tunneling

 

 

 

ospf

OSPF Routing Protocol

 

 

 

pcp

Payload Compression Protocol

 

 

 

pim

Protocol Independent Multicast

 

 

 

sctp

Stream Control Transmission Protocol

 

 

 

tcp

Transport Control Protocol

 

 

 

udp

User Datagram Protocol

 

 

 

RP/0/RSP0/CPU0:router(config)#ipv4 access-list list1 deny

Step 4

Type an IP address, followed by a space and a question mark (?), to list additional options:

 

 

 

RP/0/RSP0/CPU0:router(config)# ipv4 access-list list1 deny 172.31.134.0 ?

 

 

 

A.B.C.D

Wildcard bits

 

 

 

log

Log matches against this entry

 

 

 

log-input

Log matches against this entry, including input interface

 

 

 

<cr>

 

 

 

 

RP/0/RSP0/CPU0:router(config)# ipv4 access-list list1 deny 172.31.134.0

 

 

 

The <cr> symbol by itself indicates that there are no more keywords or arguments.

Step 5

Press Enter to execute the command:

 

 

 

RP/0/RSP0/CPU0:router(config)# ipv4 access-list list1 deny 172.31.134.0

 

 

 

 

Note

The configuration does not become active until you type the commit command to add the target

 

 

 

configuration to the running configuration.

 

 

 

 

 

Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide

 

OL-17502-01

5-3

 

 

 

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Cisco Systems ASR 9000, A9K24X10GETR That apply to the keyword and brief explanations, Press Enter to execute the command
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A9KMOD80TR, A9K24X10GETR, ASR 9000 specifications

Cisco Systems has long been a leader in networking technology, providing cutting-edge solutions for service providers and enterprise organizations alike. Among their standout products is the Cisco ASR 9000 Series Aggregation Services Routers, notably the A9K24X10GETR and the A9KMOD80TR models. These routers are engineered to deliver unmatched performance, scalability, and versatility for networks that require high bandwidth and low latency.

The Cisco ASR 9000 Series is built for the needs of today's complex service provider and enterprise networks. A significant feature of the A9K24X10GETR is its 24-port 10-Gigabit Ethernet module. This functionality allows for high-density connectivity, making it ideal for aggregating numerous connections to different parts of a network while maintaining optimal performance. Whether used for Internet service providers delivering high-speed connectivity or for enterprises looking to connect multiple branches, the A9K24X10GETR provides robust and reliable data transmission.

Further enhancing the capabilities of the ASR 9000 is the A9KMOD80TR module, which supports an extensive range of services. This module is designed to run a variety of technologies, including Layer 2 and Layer 3 services, MPLS (Multiprotocol Label Switching), and IPv6. Its ability to integrate seamlessly into existing infrastructures while providing the advanced features customers demand makes it an invaluable asset for network engineering teams.

Another cutting-edge technology present in the ASR 9000 Series is its support for eBGP (External Border Gateway Protocol), which plays a critical role in managing traffic across multiple networks. The routers are equipped with advanced telemetry features, empowering operators with real-time insights into network performance and health. Additionally, they come with integrated security features that protect against DDoS threats and other vulnerabilities.

In summary, Cisco's ASR 9000 Series, particularly the A9K24X10GETR and A9KMOD80TR, combines high-density connections, extensive service support, and advanced security and telemetry capabilities. These routers are perfect for demanding environments where reliable performance and adaptability are crucial. With their focus on innovation and performance, Cisco continues to shape the future of networking technology.
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