You are exactly right.
Perhaps your previous statement did not come out on paper as it did in your
head...I quote "I suppose there are situations where you may want
lookups -such as when you are using a host file so you can telnet to
different routers using a pneumonic rather than an ip address"
Lookups refers to DNS lookups I presume. Typically, one uses either hosts
files or DNS to find name to address mappings, just not both at the same
time. That said, I have used both methods simultaneously when
troubleshooting various problems. The ip domain-lookup command will force
your IOS to use DNS for name resoution. Your router will use the entries in
the internal hosts file regardless of whether you have lookups enabled or
not.
----- Original Message -----
From: Chuck Larrieu <[EMAIL PROTECTED]>
To: whatshakin <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Saturday, November 25, 2000 10:45 AM
Subject: RE: annoying line after config t
> Hhhmmm...... interesting food for thought.........
>
> Coming from a background in small networks, I suppose my view is a bit
> limited. So let's see if I can discern why the domain lookup function even
> exists in the IOS.
>
> In reasonably well organized larger networks, folks run their own DNS
> internally. Network guys take advantage of the command ip name-server
> a.b.c.d to point the router to their DNS server, which in turn has been
> configured with router names and ip addresses. Makes telnetting around a
> bit easier, particularly when router names follow some logical convention.
> E.g. telnet BranchOffice or telnet 3rdfloor rather than the non-intuitive
ip
> addresses
>
> Can you folks who work/have worked in such environments offer an opinion?
>
> Chuck
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
> whatshakin
> Sent: Saturday, November 25, 2000 10:12 AM
> To: [EMAIL PROTECTED]
> Subject: Re: annoying line after config t
>
> The whole point of a hosts file is so you don't need lookups!
>
> ----- Original Message -----
> From: Chuck Larrieu <[EMAIL PROTECTED]>
> To: Dennis Laganiere <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Saturday, November 25, 2000 9:27 AM
> Subject: RE: annoying line after config t
>
>
> > Another one I recently have come across is the ip tcp synwait-time,
which
> > allows one to manually set the time the router waits for a tcp
connection
> to
> > become established. While the documentation states that the purpose is
to
> > allow for long wait times because of slow links, congestion, or slow
> > response from hosts, and can also adjust the wait downwards, limiting
the
> > wait time for those domain lookups.
> >
> > Of course the no ip domain-lookup accomplishes the same thing.....on the
> > other hand, I suppose there are situations where you may want lookups -
> such
> > as when you are using a host file so you can telnet to different routers
> > using a pneumonic rather than an ip address.
> >
> > Chuck
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
> > Dennis Laganiere
> > Sent: Thursday, November 23, 2000 10:40 AM
> > To: '[EMAIL PROTECTED]'
> > Subject: annoying line after config t
> >
> > Isn't there a command to suppress the annoying "00:01:35:
%SYS-5-CONFIG_i:
> > Configured from console by console" line and dramatic pause every time
you
> > exit the config term? I was so happy to learn the "no ip domain-lookup"
> > command to suppress the pause every time you mistype a command, but this
> one
> > still stumps me. You help is appreciated. Thanks...
> > - Dennis
> >
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