Re: OSPF Authentication Methods - (3)

My job title has always been engineer, so my thinking is the glass is twice
the size it needs to be :)

On Fri, May 20, 2011 at 2:00 PM, Ronnie Angello <ronnie.angello_at_gmail.com>wrote:

> Is the glass half empty or half full?
>
> On Fri, May 20, 2011 at 2:45 PM, Marko Milivojevic <markom_at_ipexpert.com
> >wrote:
>
> > It's a perfectly valid point and I stated that in my first sentence.
> > It depends on the point of view. For me "no authentication" means that
> > "no information pertaining to the presence or absence of
> > authentication is present". In OSPF, when using NULL authentication,
> > information that this authentication type is used is present, hence my
> > agreement with 3 methods.
> >
> > In large scheme of things, it's not really that relevant is
> > authentication type 0 an authentication or not, as long as we know
> > it's there.
> >
> > --
> > Marko Milivojevic - CCIE #18427
> > Senior Technical Instructor - IPexpert
> >
> > FREE CCIE training: http://bit.ly/vLecture
> >
> > Mailto: markom_at_ipexpert.com
> > Telephone: +1.810.326.1444
> > Web: http://www.ipexpert.com/
> >
> > On Fri, May 20, 2011 at 11:40, Narbik Kocharians <narbikk_at_gmail.com>
> > wrote:
> > > I always saw it as a two step process as well, you enable
> authentication
> > and
> > > then, apply. When you enable authentication it needs to be enabled on
> > both
> > > ends of the link. So i guess we are saying the same thing.
> > >
> > > But i still have problems with OSPF having three authentication
> methods.
> > > Especially when they say type "0" is one type of authentication and
> when
> > you
> > > look it up, it states that "0" means NO Authentication.
> > >
> > > But i see everyones point here.
> > >
> > > On Fri, May 20, 2011 at 11:07 AM, Marko Milivojevic <
> markom_at_ipexpert.com
> > >
> > > wrote:
> > >>
> > >> On Fri, May 20, 2011 at 10:50, Narbik Kocharians <narbikk_at_gmail.com>
> > >> wrote:
> > >> > So OSPF can not work without authentication.
> > >>
> > >> If you consider "null authentication" as "no authentication", then it
> > >> can. However, if you consider it as authentication, then no, it can't
> > >> :-).
> > >>
> > >> I always approached OSPF authentication as a two-stage authentication
> > >> - one stage is type-match, the other one is password match. From that
> > >> perspective, I would agree with the statement above that OSPF cannot
> > >> work without the authentication, as the first-stage is always present
> > >> in the packets.
> > >>
> > >> --
> > >> Marko Milivojevic - CCIE #18427
> > >> Senior Technical Instructor - IPexpert
> > >>
> > >> FREE CCIE training: http://bit.ly/vLecture
> > >>
> > >> Mailto: markom_at_ipexpert.com
> > >> Telephone: +1.810.326.1444
> > >> Web: http://www.ipexpert.com/
> > >
> > >
> > >
> > > --
> > > Narbik Kocharians
> > > CCSI#30832, CCIE# 12410 (R&S, SP, Security)
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>
> --
> Ronald Angello
> Senior Network Architect
> CCIE 17846
> CCDP, CCIP, CCNP
>
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Received on Fri May 20 2011 - 14:05:15 ART