Todd Lammle's CCNA/CCENT IOS Commands Survival Guide: Exams 100-101, 200-101, and 200-120

Todd Lammle's CCNA/CCENT IOS Commands Survival Guide: Exams 100-101, 200-101, and 200-120

Todd Lammle

Language: English

Pages: 264

ISBN: 1118820045

Format: PDF / Kindle (mobi) / ePub

Your Guide to CCENT and CCNA IOS Commands

This book is an ideal supplement to Todd Lammle’s CCENT and CCNA Study Guides, and a great quick reference for any Cisco networking administrator. Covering IOS version 15, each chapter begins with a short introduction, explaining what tasks will be discussed, followed by detailed explanations of and examples of the commands. The book includes an easy-to-navigate table of commands broken into the following topic areas:

  • Internetworking and TCP/IP  
  • Cisco command line interface (CLI) and Security Device Manager (SDM) 
  • Router Configuration 
  • LAN Switch Configuration 
  • Advanced IOS and Troubleshooting 
  • Access Lists 
  • Network Address Translation 
  • Wireless 
  • Wide Area Networks 
  • Security 
  • IPv6 

Whether you are studying for your CCENT or CCNA certification, or are a seasoned Cisco networking administrator, this IOS Commands Survival Guide is the perfect reference to help you achieve your goals.

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15:39:02.818: %CLEAR-5-COUNTERS: Clear counter on interface Serial0/0/0 by console Todd#sh ip interface s0/0/0 Serial0/0/0 is up, line protocol is up Internet address is Broadcast address is Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is disabled Secondary address Secondary address Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Local.

Protocol is up 100 Chapter 4    Enhanced IGRP (EIGRP) and Open Shortest Path First (OSPF) ■ Internet Address, Area 0 Process ID 132, Router ID, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID), Interface address No backup designated router on this network Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:01 Supports Link-local Signaling (LLS).

Link. The interface becomes a nontrunk interface regardless of whether the neighboring interface is a trunk interface. This port would be a dedicated layer-2 port. switchport mode dynamic auto    This mode makes the interface able to convert the link to a trunk link. The interface becomes a trunk interface if the neighboring interface is set to trunk or desirable mode. This is now the default switchport mode for all Ethernet interfaces on all new Cisco switches. Configuring VLANs 133.

VLAN is present—if it is, it’ll be listed in the display. Before you enable the voice VLAN, it’s recommend you enable QoS on the switch by entering the mls qos global configuration command and set the port trust state to trust by entering the mls qos trust cos interface configuration command. You must make sure that CDP is enabled on the switch port connected to the Cisco IP Phone to send the configuration. This is on by default, so unless you disabled it, you shouldn’t have a problem. The.

Inside your firewall while denying other ICMP traffic. Authentication proxy    This is a feature that makes users authenticate any time they want to access the network’s resources through HTTP, HTTPS, FTP, and Telnet. It keeps personal network access profiles for users, and it automatically gets them for you from a RADIUS or TACACS+ server and applies them as well. Destination URL policy management    This is a buffet of features that’s commonly referred to as URL filtering. Per-user firewalls.

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