Official Lammle User Forum

Results 1 to 3 of 3
  1. #1
    Join Date
    May 2011
    Middlesbrough, UK

    Default 7th Ed - Page 336 a note about step 4


    Just incase anyone else hits this. Step 4 at the top of page 336 asks you to ping routerb. In my case this failed as I had done the command 'no ip domain-lookup' mentioned in Step 2. This command appears in my situation to disable any form of domain lookup, it won't even look in the HOST file on the router.

    Tested with Packet Tracer 5.3.1. I expect this is the correct behaviour of using this command. Can anyone else confirm that no ip domain-lookup is meant to do this?

  2. #2
    Join Date
    Nov 2007


    "no ip domain-lookup" simply stops the router from trying to telnet to anything you accidentally type in at the command line, I think.

    It doesn't affect ping, I think.

    (I think, therefore I might be confused.)
    I thought I was wrong once. But, of course, I was wrong.

  3. #3
    Join Date
    Dec 2006

    Default no ip domain-lookup

    That sounds like a PT issue.

    The command is enabled by default and will try and resolve what it thinks is a host name to a DNS server.

    If you disable it, then the hosts table can be used.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Collision/broadcast domain note
    By rthreshier in forum CCENT Chapter 1: Internetworking
    Replies: 3
    Last Post: 12-01-2013, 01:47 AM
  2. question 8 page 648 and its answer page page 652
    By Maged in forum Chapter 12: Security
    Replies: 1
    Last Post: 03-09-2013, 04:45 AM
  3. Replies: 1
    Last Post: 08-17-2010, 08:38 PM
  4. What is the critical first step in BCP
    By CISSP_Candidate in forum CISSP Information
    Replies: 1
    Last Post: 08-29-2006, 10:45 AM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts