[NTLUG:Discuss] philosophical dhcpcd question
Paul Drew
solarcurve at msn.com
Thu Aug 15 10:35:28 CDT 2002
Not over the internet, but you can internally on the same subnet. I find
that quite handy sometimes when a machine is acting up.
>From: Fred James <fredjame at concentric.net>
>Reply-To: discuss at ntlug.org
>To: discuss at ntlug.org
>Subject: Re: [NTLUG:Discuss] philosophical dhcpcd question
>Date: Thu, 15 Aug 2002 09:48:41 -0500
>
>But you cannot ping a private range IP over the Internet, can you?
>
>Richard Geoffrion wrote:
>
>>Fred James wrote:
>>
>>>OK, but why? Please understand that this is not a question of how it
>>>is, or what happens, nor am I suggesting the world change to fit my
>>>current whim. It fairly is easy to understand why we might want a
>>>DHCP client to try to retain a single IP for the duration of its
>>>connection, or possibly even upon reestablishing a failed connection,
>>>as long as it is connected to the same DHCP sever. But is there any
>>>reason to want that DHCP client to try to keep the same IP it had
>>>before power down, when it is powered up connected to a different
>>>DHCP server?
>>>
>>
>>In my case, when users have the same ip address it makes it easy for me as
>>an administrator to ping x.x.x.x to test this that or the other.
>>Sometimes
>>I want the flexibility of automatically setting someone's IP settings
>>(gateway, dns, domain name...etc) but I want the address to be permenant
>>for
>>reasons like using VNC for remote control support purposes. That's why I
>>like dhcp and why I like people to keep the same address -- Network
>>administration becomes MUCH easier.
>>
>>However, DHCP can be made to be more 'dynamic'. All I have to do is setup
>>a
>>lease time of 5 minutes and as long as a workstation is turned on and
>>logged
>>in, they will continually renew their IP address. Turn off the
>>workstation
>>and take it home and the lease is expired. Of course it will try to
>>re-lease the same IP address.....so we're back to the issue of having to
>>tell the client to release it's IP address.
>>
>>A short lease time DOES cause much more traffic, but can also be a help
>>when
>>you are preparing to switch out network resources...like say a dhcp server
>>or gateway change.
>>
>>/dev/rtcg
>>
>>
>>_______________________________________________
>>http://www.ntlug.org/mailman/listinfo/discuss
>>
>>
>
>--
>small is beautiful
>
>
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