From: shiran guez (shiranp3@gmail.com)
Date: Mon Sep 24 2007 - 11:32:20 ART
no offence taken but what you just now did is give an explanation, and this
mean that behind this 2 cent advice there is a explanation and not just "do
..." and it will work there is a reason and my guess is that as a
professional you need to know the reason and not just the list of 2 cent
advice.
again I all for a quick solution but with understanding that this quick
solution is not from something you saw some where, and you are doing like a
dummy from this day on without knowing why!
On 9/24/07, Andris Zarins <a.zarins@lattelecom.lv> wrote:
>
> Shiran, I think you are talking bullshit, my friend, no offence. There
> are a lot of 'just my 2 cent' advices, and here goes another one.
>
> Either loopbacks, or physical/logical addreses will work just fine.
> Final conclusion depends of either you have just one link/route traffic
> can flow, or there are several (like backup links and so on) and if
> there are some additional issues you have to deal with. One thing (proly
> - the most important) you must keep in mind - both tunnel endpoint
> addresses (tunnel destination and source) address must be reachable. So
> if you arent using directly connected interface addresses, you will need
> some static/dynamic routing to make far end address reachable, so I'd
> advice to avoid it by using directly connected interface addresses on
> both ends.
>
> If you have some backup links, and you want the tunnel to be UP at all
> times - interface addresses wont work, as interface might be DOWN at
> some moment, in that case - use loopbacks and make sure they are
> reachable via primary and backup link at all times. If you dont have to
> save address space, or dont have some technical reasons why you have to
> use 'unnumbered' on Tunnel interface, dont use 'unnumbered', as it will
> ease troubleshooting in case you need it.
>
>
>
> Hope it helps,
> Andris
> #17473
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> shiran guez
> Sent: Monday, September 24, 2007 4:08 PM
> To: Alexander Belov
> Cc: Tandou Mohamed; ccielab@groupstudy.com
> Subject: Re: Tunnel Config
>
> guys although every opinion count here I think that to give this "2 cent
> advice" is the worse we can do, if we want to consider our self Experts
> then
> we need to act like it and understand that there are very few 2 cent
> advice
> and mostly are focused on tricks like making the status prompt on the
> IOS
> disappear.
>
> but as far as technology there are no "2 cent advice" it is either you
> understand or you do not, and if you do not understand then your "2 cent
> advice" will work may be 90% if you lucky but in case you get a question
> that need your full understand it will not work and you will not know
> why.
>
>
> I hope that more will agree with me on that view
>
> On 9/24/07, Alexander Belov <abelov@technoserv.ru> wrote:
> >
> > Hi mate!
> >
> > I'd say - Loopback IPs for tunnel source/dest and /30 network on
> tunnel
> > (ip
> > address 192.168.x.1/30 vs ip address 192.168.x.2/30)...
> >
> > My 2 cents
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Tandou Mohamed
> > Sent: Monday, September 24, 2007 4:12 PM
> > To: ccielab@groupstudy.com
> > Subject: Tunnel Config
> >
> > GS,
> > When configuring a tunnel interface, what is the best option to use
> for
> > tunnel source and tunnel destination if no direction is given? i
> always
> > use
> > the loopback interface for tunnel source and destination and also for
> > tunnel
> > ip address using ip unnumbered. Some of the vendor workbooks sometimes
> use
> > loopback or physical ip addresses. Can someone explain if i am doing
> > something wrong ?
> >
> > Thanks,
> >
> > TM
> >
> >
> > ---------------------------------
> > Moody friends. Drama queens. Your life? Nope! - their life, your
> story.
> > Play Sims Stories at Yahoo! Games.
> >
> >
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> >
>
>
>
> --
> Shiran Guez
> MCSE CCNP NCE1
> http://cciep3.blogspot.com
>
> _______________________________________________________________________
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> http://www.groupstudy.com/list/CCIELab.html
>
-- Shiran Guez MCSE CCNP NCE1 http://cciep3.blogspot.com
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