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Re: Subnets on Diff IP's posted 11/05/2008
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Omkar,

You are correct, guys the initial file sets the ground work for the Eigrp
Stub to be tested, and we test every option there, if the initial setup is
not done correctly, you won't be able to test the "Eigrp stub" lab.

On Tue, Nov 4, 2008 at 9:50 PM, Omkar Tambalkar
<omkar.groupstudy@xxxxxxxxx>wrote:

> Which is why the initial configuration on Soup to Nuts work mentions you to
> configure the switchports on the connected switch in different VLANs. This
> will happen because you are sending out hello packets out the Ethernet
> interfaces intending to form adjacency with other routers, because of the
> physical/Layer 2 topology of the racks AND the router has joined the
> multicast group for EIGRP it will process the hello and log an error
> becasue
> it is not in the same subnet.
> One of the criterias of forming EIGRP adjacencies is that the mask of the
> neighbor in the hello packet must match the mask of the interface on which
> it was received.
>
> On Tue, Nov 4, 2008 at 8:33 PM, Hobbs <deadheadblues@xxxxxxxxx> wrote:
>
> > you are getting that message because they are on different subnets on the
> > ethernet side yet you have them physically connected to the same switch.
> > They are forming an adjacency over the frame connection.
> >
> > when you advertise the ethernet segments, you are also sending hellos out
> > those interfaces...
> >
> > if you want to get rid of the error, put the ports in different vlans on
> > the
> > switch. or put passive interface for ethernet interfaces.
> >
> >
> >
> > On Tue, Nov 4, 2008 at 9:26 PM, Raghav Bhargava
> > <raghavbhargava12@xxxxxxxxx>wrote:
> >
> > > Alright Experts,
> > >
> > > here i go again
> > >
> > > R1 is connected to R2 via FRame relay cloud on serial Interfaces. And
> > > also there Ethernet interfaces are connected via a switch.
> > >
> > > but my point is that when I advertise the ethernet Ip's which are on
> > > different subnet i get that message which is correct coz the ip's are
> > > on different subnet.
> > >
> > > R2#
> > > *Mar 30 17:22:39.531: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:22:53.707: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:23:07.991: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:23:22.087: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:23:35.491: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:23:48.987: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:24:02.867: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:24:17.515: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:24:31.907: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:24:45.031: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:24:59.371: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > > *Mar 30 17:25:13.311: IP-EIGRP(Default-IP-Routing-Table:100): Neighbor
> > > 200.1.1.1 not on common subnet for Ethernet1/0
> > >
> > > thanks
> > > /raghav
> > >
> > > On Tue, Nov 4, 2008 at 8:20 PM, Hobbs <deadheadblues@xxxxxxxxx> wrote:
> > > > they are on the same subnet 131.1.12.1 and 131.1.12.2, right? the
> 200
> > > > networks are the opposite ends...
> > > >
> > > > am i missing something? what is the actual physical topology? do you
> > have
> > > > these routers plugged into the same switch as well as connected via
> > > > frame-relay?
> > > >
> > > > On Tue, Nov 4, 2008 at 9:05 PM, Raghav Bhargava <
> > > raghavbhargava12@xxxxxxxxx>
> > > > wrote:
> > > >>
> > > >> Hey buddy,
> > > >>
> > > >> This is from Narbik's Soup to nuts Lab6 Eigrp Stub. and I have
> > > >> implemented it on my lab.
> > > >>
> > > >> here is the output on R1
> > > >>
> > > >>
> > > >> R1#sh ip ro
> > > >> Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
> > > >>       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
> > > >>       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
> > > >>       E1 - OSPF external type 1, E2 - OSPF external type 2
> > > >>       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
> > > >> level-2
> > > >>       ia - IS-IS inter area, * - candidate default, U - per-user
> > static
> > > >> route
> > > >>       o - ODR, P - periodic downloaded static route
> > > >>
> > > >> Gateway of last resort is not set
> > > >>
> > > >>     1.0.0.0/24 is subnetted, 4 subnets
> > > >> C       1.1.0.0 is directly connected, Loopback0
> > > >> C       1.1.1.0 is directly connected, Loopback1
> > > >> C       1.1.2.0 is directly connected, Loopback2
> > > >> C       1.1.3.0 is directly connected, Loopback3
> > > >> D    2.0.0.0/8 [90/2297856] via 131.1.12.2, 00:53:51, Serial0/0.1
> > > >> C    200.1.1.0/24 is directly connected, Ethernet1/0
> > > >> D    200.2.2.0/24 [90/2195456] via 131.1.12.2, 00:00:32,
> Serial0/0.1
> > > >>     131.1.0.0/24 is subnetted, 1 subnets
> > > >> C
> > > >> *Mar 30 18:11:00.903: IP-EIGRP(Default-IP-Routing-Table:100):
> Neighbor
> > > >> 200.2.2.2 not on common subnet for Ethernet1/0   131.1.12.0 is
> > > >> directly connected, Serial0/0.1
> > > >>
> > > >>
> > > >> thanks
> > > >> /raghav
> > > >>
> > > >>
> > > >>
> > > >> On Tue, Nov 4, 2008 at 7:49 PM, Atlanta CCIE <atlantaccie@xxxxxxxxx
> >
> > > >> wrote:
> > > >> > Why don't you lab it up and let us all know?
> > > >> >
> > > >> > On Tue, Nov 4, 2008 at 10:19 PM, Raghav Bhargava
> > > >> > <raghavbhargava12@xxxxxxxxx> wrote:
> > > >> >>
> > > >> >> Hi Expert,
> > > >> >>
> > > >> >> This is my topology :-
> > > >> >>
> > > >> >> R1------------------------FR--------------------------R2
> > > >> >>
> > > >> >> Now I have to run Eigrp and the Ip Addressing is as follows:-
> > > >> >>
> > > >> >> Fast ethernet on R1:- 200.1.1.1/24
> > > >> >> Fast ethernet on R2:- 200.2.2.2/24
> > > >> >>
> > > >> >> My query is can the interfaces be on different subnets. If yes
> then
> > > >> >> can someone explain how  the EIGRP neighbor Adjacency will come
> up
> > > >> >> ...???
> > > >> >>
> > > >> >>
> > > >> >> --
> > > >> >> Warm Regards
> > > >> >> Raghav
> > > >> >>
> > > >> >>
> > > >> >> Blogs and organic groups at http://www.ccie.net
> > > >> >>
> > > >> >>
> > > _______________________________________________________________________
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> > > >> >>
> > > >> >>
> > > >> >>
> > > >> >>
> > > >> >>
> > > >> >
> > > >> >
> > > >>
> > > >>
> > > >>
> > > >> --
> > > >> Warm Regards
> > > >> Raghav
> > > >>
> > > >>
> > > >> Blogs and organic groups at http://www.ccie.net
> > > >>
> > > >>
> > _______________________________________________________________________
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> > > >>
> > > >>
> > > >>
> > > >>
> > > >
> > > >
> > >
> > >
> > >
> > > --
> > > Warm Regards
> > > Raghav
> >
> >
> > Blogs and organic groups at http://www.ccie.net
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
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>
> _______________________________________________________________________
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-- 
Narbik Kocharians
CCSI#30832, CCIE# 12410 (R&S, SP, Security)
www.MicronicsTraining
www.Net-Workbooks.com
Sr. Technical Instructor