From: Marius Venter (marius@aict.co.za)
Date: Thu May 11 2006 - 11:53:53 ART
If you really wanted to get technical you could filter the EIGRP packets on
the switch that interconnects the routers.
One would only do this if the question stipulates that you may use neither
the passive interface nor the neighbor statement.
In this case I would build an Access-list and apply it appropriately to the
ports connected to the other routers.
Just a thought
Marius Venter
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Petr
Lapukhov
Sent: Thursday, May 11, 2006 4:39 PM
To: Schulz, Dave
Cc: JB; ccielab@groupstudy.com
Subject: Re: EIGRP - Advertising from specific interface
There is a difference between neighbor command in RIP and EIGRP.
With eigrp, you should _not_ issue "passive-interface" command -
EIGRP will not establish unicast adjacency over passive interface.
At the same time, RIP requires that command, because it still continue
to send multiacst/broadcast updates over interface, even with neighbor
configured.
HTH
Petr
2006/5/11, Schulz, Dave <DSchulz@dpsciences.com>:
>
> That is correct. My understanding is, that when you configure the
> neighbor command that all updates are then "unicast" to only configured
> neighbors, not taking the passive interface into to consideration. I
> believe that your lab had the requirement of not using the passive
> interface and restricting updates to a particular interface. I would be
> interested if there is another way to do this.
>
>
> Dave Schulz,
> Email: dschulz@dpsciences.com
>
>
>
> -----Original Message-----
> From: JB [mailto:jellyboy@gmail.com]
> Sent: Thursday, May 11, 2006 10:18 AM
> To: Schulz, Dave
> Cc: ccielab@groupstudy.com
> Subject: Re: EIGRP - Advertising from specific interface
>
> The neighbor command will unicast advertise to a particular neighbor,
> but I don't think it will tell the router what interface to advertise
> the update out of.
>
> JB
>
> On 5/11/06, Schulz, Dave <DSchulz@dpsciences.com> wrote:
> > JB - Take a look at the neighbor command. This may help you.
> >
> > Dave Schulz
> > Email: dschulz@dpsciences.com
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > JB
> > Sent: Thursday, May 11, 2006 2:22 AM
> > To: ccielab@groupstudy.com
> > Subject: EIGRP - Advertising from specific interface
> >
> > The lab I am redoing asks for EIGRP updates to be restricted to a
> > particular interface without using the passive-interface command. The
> > interface address is, for example, 1.1.1.1/24. The WB solution is
> > using #network 1.1.1.1 0.0.0.0
> > I am just wondering if the line #network 1.1.1.0 0.0.0.255 would also
> > be acceptible if none of the other interface on that particular router
> > falls within that 1.1.1.0/24 range? I know the #network 1.1.1.0
> > 0.0.0.255 is not the best solution, but I believe it still does
> > fulfill the requirements..... Any thoughts???
> >
> > Cheers,
> >
> > JB
> >
> >
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