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21669 Views 4 Replies Latest reply: Jun 19, 2010 12:01 PM by CCNA24968 RSS

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ip domain lookup

Jun 17, 2010 2:00 AM

CCNA24968 149 posts since
Mar 25, 2010

Hi all


What is the difference between


R(config)#no ip domain lookup


R(config)#no ip domain-lookup



  • rosscourtnell 104 posts since
    Jun 30, 2008
    Currently Being Moderated
    1. Jun 17, 2010 2:34 AM (in response to CCNA24968)
    Re: ip domain lookup

    Hi CCNA


    There is no difference in the two commands, they both achieve the same thing. I believe it was changed to no ip domain lookup in a later version of the IOS so the no ip domain-lookup is an old version of the command.



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  • Scott Morris - CCDE/4xCCIE/2xJNCIE 8,428 posts since
    Oct 7, 2008
    Currently Being Moderated
    3. Jun 18, 2010 5:59 AM (in response to CCNA24968)
    Re: ip domain lookup

    because there are more options now.  Both exist.


    Uber-Geek-R1(config)#ip domain?
    domain  domain-list  domain-lookup  domain-name


    Uber-Geek-R1(config)#ip domain ?
      list         Domain name to complete unqualified host names
      lookup       Enable IP Domain Name System hostname translation
      multicast    Define the domain name for multicast address lookups
      name         Define the default domain name
      retry        Specify times to retry sending a DNS query
      round-robin  Round-robin multiple IP addresses in cache
      timeout      Specify timeout waiting for response to a DNS query


    Uber-Geek-R1(config)#ip domain look ?
      nsap              Enable IP DNS queries for CLNS NSAP addresses
      source-interface  Specify source interface for DNS resolver





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