Chuck,
This should help.
I currently work in a reasonable size network (for a private network any way) of some
200 network devices and remembering numbers or looking them up is a real pain. DNS
lookups is MUCH easier on the grey matter.
Also, if you use the following on all vty/console lines, the line you are typing will
be
immediately rewritten after a log line on the screen. This has the benifit of still
seeing any debug lines or whatever, but still being able to read your commands.
Router (config-line)# logging synchronous
Robert O'Brien
CCNA
Canberra, Australia
whatshakin wrote:
> 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
> > >
> > > _________________________________
> > > FAQ, list archives, and subscription info:
> > > http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> > >
> > > _________________________________
> > > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> > >
> >
> > _________________________________
> > FAQ, list archives, and subscription info:
> > http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
> >
>
> _________________________________
> FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
