Re: OSPF null authenication VS no ospf authentication

From: shiran guez (shiranp3@gmail.com)
Date: Sun Oct 14 2007 - 13:35:54 ART


the syntax of the "most secure" Authentication Type in OSPF

under the routing proccess:

*area* *area-id* *authentication* [*message-digest*]
and under the interface:

*ip ospf message-digest-key key-id encryption-type md5 key *

http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hirp_r/rte_osph.htm#wp998738

On 10/14/07, RRC <ronnieroshan@gmail.com> wrote:
>
> I have a doubt , so if i were to be asked for the MOST SECURE
> Authentication let say in an area , would it be both authentication
> message-digest & MD5 key ,,,,,,,,,,,,,,,
>
>
> Regards
>
> RRC
>
>
> On 10/14/07, Scott Morris <smorris@ipexpert.com> wrote:
>
> > There's also a NULL key (key 0) by default when you enable message
> > digest
> > authentication.
> >
> > So if you see any reference to null, figure out whether it's the
> > authentication type or a key.
> >
> > HTH,
> >
> >
> > Scott Morris, CCIE4 (R&S/ISP-Dial/Security/Service Provider) #4713,
> > JNCIE-M
> > #153, CISSP, et al.
> > CCSI/JNCI-M/JNCI-ER
> > VP - Technical Training - IPexpert, Inc.
> > IPexpert Sr. Technical Instructor
> >
> > A Cisco Learning Partner - We Accept Learning Credits!
> >
> > smorris@ipexpert.com
> >
> > Telephone: +1.810.326.1444
> > Fax: +1.810.454.0130
> > http://www.ipexpert.com
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto: nobody@groupstudy.com] On Behalf Of
> > shiran guez
> > Sent: Saturday, October 13, 2007 2:31 PM
> > To: Julio Carrasco
> > Cc: ccielab@groupstudy.com
> > Subject: Re: OSPF null authenication VS no ospf authentication
> >
> > if you look into the RFC then you will see that the OSPF always use
> > Authentication and the default type is Null so there is no difference,
> > if
> > you say that the Authentication is Null or you live it with out pointing
> > it
> > both are the same.
> >
> > On 10/13/07, Julio Carrasco <julio.carrasco@ya.com> wrote:
> > >
> > > Hello group,
> > >
> > > Does you know what is the diference between configuring OSPF null
> > > authentication on an interface, and no configurin any authentication
> > > method ?
> > >
> > > Thank you,
> > > Julio.
> > >
> > > ______________________________________________________________________
> >
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> >
> >
> >
> > --
> > Shiran Guez
> > MCSE CCNP NCE1
> > http://cciep3.blogspot.com
> > http://www.linkedin.com/in/cciep3
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
> > _______________________________________________________________________
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> >
>
>

-- 
Shiran Guez
MCSE CCNP NCE1
http://cciep3.blogspot.com
http://www.linkedin.com/in/cciep3


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