[lug] Switching IP's

[John Hernandez]

It will cause the router to rebuild it's arp table from scratch, but 
that's nothing to be concerned about.  This should be practically 
instantaneous and unnoticeable on a healthy network.  It's normal 
behavior for a station that joins the network.

Greg Horne wrote:

> Ah, that sounds juicy.  I'll look into that one.  Will it do anything
> else that I should be aware of?  More importantly, if I do issue this
> command how long will it take for my other servers (DNS, SMTP, ...) to
> be recognized by the router?
> 
> Thanks for the help,
> Greg
> 
> 
>>-----Original Message-----
>>From: lug-admin at lug.boulder.co.us [mailto:lug-admin at lug.boulder.co.us]
>>
> On
> 
>>Behalf Of John Hernandez
>>Sent: Monday, January 07, 2002 4:06 PM
>>To: lug at lug.boulder.co.us
>>Subject: Re: [lug] Switching IP's
>>
>>Get the router's enable password and issue:
>>
>>clear arp-cache
>>
>>-John
>>
>>Greg Horne wrote:
>>
>>
>>>That's what I figured too, but I wasn't sure if there was a
>>>
> different
> 
>>>solution.  Uptime at my company is very important though.  Would it
>>>
> be
> 
>>>possible for me to make the necessary changes without rebooting?
>>>
> (I'm
> 
>>>hoping :) )
>>>
>>>Thanks,
>>>Greg
>>>
>>>
>>>
>>>>-----Original Message-----
>>>>From: lug-admin at lug.boulder.co.us
>>>>
> [mailto:lug-admin at lug.boulder.co.us]
> 
>>>On
>>>
>>>
>>>>Behalf Of D. Stimits
>>>>Sent: Monday, January 07, 2002 3:52 PM
>>>>To: lug at lug.boulder.co.us
>>>>Subject: Re: [lug] Switching IP's
>>>>
>>>>Greg Horne wrote:
>>>>
>>>>
>>>>>  Part 1.1    Type: Plain Text (text/plain)
>>>>>          Encoding: 7bit
>>>>>
>>>>>
>>>>Perhaps the cisco has the mac address memorized and does not believe
>>>>
>>>>
>>>the
>>>
>>>
>>>>linux machine is correct. Try cycling the power on the cisco with
>>>>
> the
> 
>>>NT
>>>
>>>
>>>>box disconnected or off.
>>>>
>>>>D. Stimits, stimits at idcomm.com
>>>>_______________________________________________
>>>>Web Page:  http://lug.boulder.co.us
>>>>Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
>>>>
>>>>
>>>_______________________________________________
>>>Web Page:  http://lug.boulder.co.us
>>>Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
>>>
>>>
>>
>>--
>>
>>   - John Hernandez - Network Engineer - 303-497-6392 -
>>  |  National Oceanic and Atmospheric Administration   |
>>  |  Mailstop R/OM12. 325 Broadway, Boulder, CO 80305  |
>>   ----------------------------------------------------
>>
>>_______________________________________________
>>Web Page:  http://lug.boulder.co.us
>>Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
>>
> _______________________________________________
> Web Page:  http://lug.boulder.co.us
> Mailing List: http://lists.lug.boulder.co.us/mailman/listinfo/lug
> 


-- 

   - John Hernandez - Network Engineer - 303-497-6392 -
  |  National Oceanic and Atmospheric Administration   |
  |  Mailstop R/OM12. 325 Broadway, Boulder, CO 80305  |
   ----------------------------------------------------