From: Jason Gardiner (gardiner@xxxxxxxxxx)
Date: Tue Apr 23 2002 - 10:12:45 GMT-3
No. You have no mapping to the remote IP address, only the local. You would
also need
frame-relay map ip 155.10.123.1 102 broadcast
on router 1
and
frame-relay map ip 155.10.123.2 102 broadcast
on router 2.
On Monday 22 April 2002 22:24, Alex Paulino wrote:
> Hi there.
>
> It means that if I configure 2 routers like the following I should have
> adjacencies?
> Router 1
> !
> interface serial 2/0
> ip add 155.10.123.1 255.255.255.0
> encap frame-relay
> frame-relay map ip 155.10.123.2 102 broadcast
> !
> router eigrp 12
> neighbor 155.10.123.1 serial 2/0
> !
>
> Router 2
> !
> interface serial 2/0
> ip add 155.10.123.1 255.255.255.0
> encap frame-relay
> frame-relay map ip 155.10.123.1 201 broadcast
> !
> router eigrp 12
> neighbor 155.10.123.2 serial 2/0
> !
>
> Are those basic configs ok or did I miss anything?
>
> -----Original Message-----
> From: Jason Gardiner [mailto:gardiner@sprint.net]
> Sent: Mon 4/22/2002 10:58 PM
> To: Alex Paulino
> Cc: ccielab@groupstudy.com
> Subject: Re: Eigrp Unicast over NBMA
>
>
>
> Okay, I tried this and this is what I found:
>
> Side 1 does not have a paasive interface or a neighbor. Debug shows
> EIGRP
as multicasts:
>
> 2d00h: IP: s=155.100.15.1 (Ethernet0/0), d=224.0.0.10, len 60, rcvd 2
> 2d00h: IP: s=155.100.15.5 (local), d=224.0.0.10 (Ethernet0/0), len 60,
> sending broad/multicast
> 2d00h: IP: s=155.100.56.5 (local), d=224.0.0.10 (Serial1/0), len 60,
> sending bro
>
>
> Side 2 has a neighbor statement but does not have a passive interface:
>
> 10w1d: IP: s=155.100.6.6 (local), d=224.0.0.10 (Loopback0), len 60,
> sending broad/multicast
> 10w1d: IP: s=155.100.6.6 (Loopback0), d=224.0.0.10, len 60, rcvd 2
> 10w1d: IP: s=155.100.56.6 (local), d=155.100.56.5 (Serial0), len 60,
> sending
>
> Notice how EIGRP is multicast over the non-neighbor interfaces and
> unicast
over the neighbor interface.
>
>
> Now, side 2 with passive interface on serial 0:
>
> 10w1d: IP: s=155.100.56.5 (Serial0), d=224.0.0.10, len 60, rcvd 2
> 10w1d: IP: s=155.100.56.5 (Serial0), d=224.0.0.10, len 60, rcvd 2
> 10w1d: IP: s=155.100.6.6 (local), d=224.0.0.10 (Loopback0), len 60,
> sending broad/multicast
>
> It's receiving multicast hellos from 155.100.56.5, but is not sending a
ny
> packets out that interface.
>
>
> Conclusion:
>
> Neighbor causes the EIGRP packets to use unicast.
>
> Passive-interface works like OSPF and prevents hellos from being
> propagated on the interface in question. THus, adjacencies will not
> form.
>
>
> Thanks,
>
> Jason Gardiner
> Supervisor, Engineering Services
> Sprint Internet Backbone Operations
>
> "You can swim all day in the Sea of Knowledge and
> still come out completely dry. Most people do."
>
> Norton Juster
>
> On Mon, 22 Apr 2002, Alex Paulino wrote:
>
>
> > Hi all, how to configure the unicast neighbor over nbma with Eigrp?
> >
> > I'm using:
> >
> > RA)
> > router eigrp 30
> > no auto-summary
> > neighbor 10.1.1.2 interface serial 0.1
> > passive-interface serial 0.1
> >
> > RB)
> > router eigrp 30
> > no auto-summary
> > neighbor 10.1.1.1 interface serial 1.1
> > passive-interface serial 1.1
> >
> > All Frame-relay maps are created, but the neighbor never up.
> >
> > Thanks for help...
> >
> > alex
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