From: George Roman (georgeroman@gmail.com)
Date: Tue Jul 10 2007 - 10:50:06 ART
Dan,
I completely agree with you, but i assumed that in case you want to
advertise some other interfaces into eigrp and you do not want to send eigrp
packets on that interfaces, just adding the 0.0.0.0 for those ip addresses,
will not stop eigrp from sending hellos on them so you have to filter
eigrp.
Let me give you an example:
You have router R1 with the following interfaces:
s0: 1.1.1.1
s1: 2.2.2.2
R2:
s0:1.1.1.2
s1:3.3.3.3
You enable eigrp between R1 and R2 and on r1 you want to advertise network
2.2.2.2 so you put into router eigrp : network 2.2.2.2 0.0.0.0
this last command does not stop R1 from sending eigrp packets on the s1
interface so if you want to filter this hellos, you have to specify
"passive-interface serial1", which is not an option in this case, or
filter with an extended acl the eigrp protocol. Am i right?
George
On 7/10/07, Dan C <cdan2154@gmail.com> wrote:
>
> Hi George,
>
> If you need to add any other interfaces into eigrp you will need just to
> use 0.0.0.0 for them again eg:
>
> router ei 100
> net 1.1.1.1 0.0.0.0
> net 1.1.2.1 0.0.0.0
>
> this way no hellos will be sent out but on those 2 interfaces.... You can
> verify using debug eigrp packets hello
> Cheers,
> Dan
>
> On 7/10/07, George Roman <georgeroman@gmail.com> wrote:
>
> > You are right about that. if you put the wildcard mask of 0.0.0.0 only
> > that
> > interface will participate in eigrp process, but if you want some other
> > networks (on other interfaces) to get advertised into eigrp, i think the
> >
> > only solution is to put those interfaces in eigrp and use ACLs so you
> > will
> > not send hellos on them (ACLs because as Cristian said, the
> > passive-interface command is forbidden).
> >
> > George
> >
> > On 7/10/07, Mark Mckillop (mmckillo) < mmckillo@cisco.com> wrote:
> > >
> > > I think the point is to use the 0.0.0.0 in the network statement to
> > > specify just the precise interfaces that you want enabled in the EIGRP
> >
> > > process.
> > >
> > > i.e. network 150.1.1.1 0.0.0.0 -> Just the interface with that
> > specific
> > > address
> > >
> > > Mark.
> > >
> > > -----Original Message-----
> > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> > Of
> > > George Roman
> > > Sent: 10 July 2007 12:32
> > > To: Cristian Ionescu; ccielab@groupstudy.com
> > > Subject: Re: do not send Eigrp Hello on interfaces
> > >
> > > I think one of the options that you have to filter eigrp is extended
> > acl
> > > (specify the protocol eigrp)
> > >
> > > George
> > >
> > > On 7/10/07, Cristian Ionescu <cristian.ionescu@omnilogic.ro> wrote:
> > > >
> > > > Hi
> > > >
> > > > I have a task where it says to not send eigrp hello on interfaces
> > that
> > >
> > > > are not part of the eigrp domain but not to use passive-interface.
> > > > It is ok to use neighbor?
> > > > I have 4 routers on domain. I need to put in one router all 3 other
> > > > routers?
> > > >
> > > > If i put under the router eigrp x menu, network y.y.y.y 0.0.0.0 will
> > > > have the same result?
> > > >
> > > > Thanks
> > > >
> > > >
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