I had this huge post typed out ready to flame you for your response, but I
don't want to lower myself to that level. I would hope that you are not an
indication of the quality of people that Qwest hires. What an ass!
Mike W.
"kevin jones" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Can you explain to me how you can telnet into the router if "all
> interfaces fail" with the exception of the loopback interface? If ALL
> interfaces fail, the only way you can get to the router is via console or
> AUX. And you call yourself a CCNP. No wonder the value of Cisco
> certification value (with the exception of the CCIE) is becoming less
> desirable these days.
>
> Kevin
>
> Juniper Network Certified Internet Expert (JNCIE)
>
> Qwest Communiations
>
>
>
> >From: "Inno. Ama" >Reply-To: "Inno. Ama" >To: [EMAIL PROTECTED]
> >Subject: Re: what is loopback interface for ? [7:9493] >Date: Fri, 22
> Jun 2001 14:57:53 -0400 > >Sue, > >In addition to what ER had to say, the
> main purpose of >loopback address is actually contained in your
> >question.....loopback interface is always up/up, and >this helps you to
> possibly get into the router when >there is problem and all interfaces
> fail, now you can >see what is going on and troubleshoot after you have
> >telneted into the router.... > >inno/ccnp >--- Ednilson Rosa wrote: > >
> Sorry, > > > > Just a correction: the mask usually used for a > >
> loopback intf is /32 > > (255.255.255.255) and not /24 (255.255.255.0). >
> > > > Rgards, > > > > ER > > CCNA > > > > ----- Original Message ----- >
> > From: "Ednilson Rosa" > > To: > > Sent: Friday, June 22, 2001 1:20 PM >
> > Subject: Re: what is loopback interface for ? > > [7:9493] > > > > > >
> A loopback interface may be used for many purposes. > > You may use it as
> the > > end of a tunnel on a VPN configuration or you may > > configure
> it just to have > > a stable router-id for OSPF, for instance. > > > >
> You don't need to configure it. They are optional > > and you may use any
> > > address you want. If loopback intfs are following a > > specific
> address scheme > > in your network, then they must be planned for some >
> > specific function by who > > designed the network. You should not
> change it > > before knowing what function > > is this (what may be
> achieved by analyzing your > > configuration carefully). > > > > The
> subnet mask used on a loopback intf isn't also > > necessarily /24. This
> is > > frequently used though, to economize address space, > > since you
> don't need to > > differentiate network and host on this segment. In > >
> this case, host and > > network are the same and routing is performed
> with > > no problem. > > > > ER > > CCNA > > > > ----- Original Message
> ----- > > From: "Susan Stone" > > To: > > Sent: Friday, June 22, 2001
> 7:22 AM > > Subject: what is loopback interface for ? [7:9493] > > > > >
> > Hi, > > > > I always wonder what is loopback interface for? Can > >
> anyone explained its > > function? Can we don't configure the loopback >
> > interface. Our WAN Lookback > > always start with 192.168.X.X why? Must
> we use > > private IP? I found I can > > telnet to a remote router using
> its loopback IP. > > But I wonder How I route > > as it always have the
> subnet mask of > > 255.255.255.255. Then which is the > > network and
> which the host > > > > Susan > >
> >_________________________________________________________________________
> > > Get Your Private, Free E-mail from MSN Hotmail at > >
> http://www.hotmail.com. >[EMAIL PROTECTED] > >
> >__________________________________________________ >Do You Yahoo!? >Get
> personalized email addresses from Yahoo! Mail
> misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
> ------------------------------------------------------------------------
>
> Get your FREE download of MSN Explorer at http://explorer.msn.com
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=9584&t=9493
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
