From: ccie2be (ccie2be@nyc.rr.com)
Date: Mon Jul 19 2004 - 10:31:52 GMT-3
Whoops, you're right. I need to refain from posting emails before I've had
my morning coffee. Sorry for dumb question.
----- Original Message -----
From: "CCIE" <ccie@gmx.net>
To: "'ccie2be'" <ccie2be@nyc.rr.com>
Cc: <ccielab@groupstudy.com>
Sent: Monday, July 19, 2004 9:11 AM
Subject: AW: Put the loopback in appropriate Area or Routing Domains .....
No, the Loopback Address has a special Network Type in OSPF( network type
loopback). It will be always a host /32 mask
-----Urspr|ngliche Nachricht-----
Von: nobody@groupstudy.com [mailto:nobody@groupstudy.com] Im Auftrag von
ccie2be
Gesendet: Montag, 19. Juli 2004 15:04
An: Geert Nijs; jb; Kenneth Wygand; James; diptish doshi
Cc: ccielab@groupstudy.com
Betreff: Re: Put the loopback in appropriate Area or Routing Domains .....
What about the standard way?
network x.x.x.x 0.0.0.0 area 0
Won't the loopback retain it's original mask if this is done?
----- Original Message -----
From: "Geert Nijs" <geert.nijs@simac.be>
To: "jb" <barrerj1@hotmail.com>; "Kenneth Wygand"
<KWygand@customonline.com>; "James" <james@towardex.com>; "diptish doshi"
<diptishdoshi007@yahoo.com>
Cc: <ccielab@groupstudy.com>
Sent: Monday, July 19, 2004 8:43 AM
Subject: RE: Put the loopback in appropriate Area or Routing Domains .....
> :-)
>
> There are three ways to advertise a loopback into OSPF with its original
mask.....
> Do you know all three of them ?
> 1) ip ospf network point-to-point
> 2) redistribute connected (appears as an external network, may not be
allowed)
> 3) ??? rarara
> put the loopback into a seperate area
> summarize the loopback address into the backbone :-)
>
> network x.x.x.x 0.0.0.0 area 20
> area 20 range x.x.x.x 255.255.255.0 (assuming /24 mask)
>
> Regards,
> Geert
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> jb
> Sent: zondag 18 juli 2004 20:28
> To: Kenneth Wygand; James; diptish doshi
> Cc: ccielab@groupstudy.com
> Subject: Re: Put the loopback in appropriate Area or Routing Domains
> .....
>
>
> Kenneth,
>
>
> Original mask for loopback is /32
>
> the IP OSPF NETWORK point to point change this to /24
>
> I'm wondenring
> How can I do the same without utilizing the mentioned above command?
>
> Thanks
> Jojo
>
>
>
> ----- Original Message -----
> From: "Kenneth Wygand" <KWygand@customonline.com>
> To: "James" <james@towardex.com>; "diptish doshi"
> <diptishdoshi007@yahoo.com>
> Cc: <ccielab@groupstudy.com>
> Sent: Sunday, July 18, 2004 12:53 PM
> Subject: RE: Put the loopback in appropriate Area or Routing Domains .....
>
>
> > I agree with James. However, when they say "most appropriate area", you
> > must also consider other criteria as well. For example, maybe they want
> > you to advertise a loopback with the original mask, but they prohibit
> > you from using the "ip ospf network" statement. You are also required
> > to enter this network into OSPF with the "network" command (cannot
> > "redistribute connected"). In this case, what other consideration
> > should you keep in mind when choosing the most appropriate area?
> >
> > Kenneth E. Wygand
> > Systems Engineer, Project Services
> > CISSP #37102, CCNP, CCDP, ACSP, Cisco IPT Design Specialist, MCP, CNA,
> > Network+, A+
> > Custom Computer Specialists, Inc.
> > "The only unattainable goal is the one not attempted."
> > -Anonymous
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> > James
> > Sent: Sunday, July 18, 2004 1:17 PM
> > To: diptish doshi
> > Cc: ccielab@groupstudy.com
> > Subject: Re: Put the loopback in appropriate Area or Routing Domains
> > .....
> >
> > On Sun, Jul 18, 2004 at 08:34:42AM -0700, diptish doshi wrote:
> > > hi all ,
> > >
> > > Many a times in ospf configurations it is written
> > > " Put the loopback in the appropriate area " ... im a
> > > bit confused with it ... as i dont understand as to on
> > > what criteria and what scenario should i consider
> > > while taking that decision ....
> > > Same is the case when there are various routing
> > > domain in the router and we have to put the loopback
> > > in the " APPROPRIATE " domain ...
> > > Can anybody guide me ... how to select this so
> > > called APPROPRIATE thing .????
> >
> > To me, I usually interpret this statement as:
> >
> > "Put the loopback in the backbone area, or in an area that is closer
> > toward
> > the Backbone."
> >
> > -J
> >
> > --
> > James Jun TowardEX
> > Technologies, Inc.
> > Technical Lead Network Design, Consulting, IT
> > Outsourcing
> > james@towardex.com Boston-based Colocation & Bandwidth
> > Services
> > cell: 1(978)-394-2867 web: http://www.towardex.com , noc:
> > www.twdx.net
> >
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