From: Jack Heney (jheneyccie@xxxxxxxxxxx)
Date: Wed Sep 13 2000 - 16:40:00 GMT-3
I think I've isolated the problem....
pvc enet
4700----------LANE module-----------2600
The multicast EIGRP hello packets are making it from the 4700 to the 2600,
but not from the 2600 to the 4700. Since the 2600 has acquired the 4700 as
a neighbor, it starts sending update messages to the 4700. The 4700 ignores
these messages because it hasn't received a hello message from the 2600
first.....I figured the best way to solve this was through neighbor
statements in my EIGRP configuration, because I know unicast messages can
make it from one router to the other. When I added a neighbor statement to
the config on the 2600, the EIGRP messages make it to the 4700 and the 4700
adds the 2600 to its neighbor table, but the 2600 then starts ignoring the
"multicast hellos" from the 4700. I then added a neighbor statement to the
4700, figuring they could just unicast back and forth, but this doesn't seem
to help.
I'm beginning to wonder if heaving my 4700 into the Potomac might be my best
solution.
Jack Heney
>From: Kevin Baumgartner <kbaumgar@cisco.com>
>To: "Jack Heney" <jheneyccie@hotmail.com>
>Subject: Re: Cat5500 Lane question
>Date: Wed, 13 Sep 2000 10:11:58 -0700
>
>Well it's time for me to try to this out on my routers. I really don't know
>what
>could be the problem.
>
> Kevin
>
>At 05:05 PM 9/13/00 +0000, you wrote:
> >There are other routers that are connected to the 4700 via Ethernet that
>the 4700 is learning routes from...I added ip routing just to be safe, but
>it doesn't seem to help.
> >
> >
> >>From: Kevin Baumgartner <kbaumgar@cisco.com>
> >>To: "Jack Heney" <jheneyccie@hotmail.com>
> >>Subject: Re: Cat5500 Lane question
> >>Date: Wed, 13 Sep 2000 09:57:36 -0700
> >>
> >>So have you tried adding "ip routing" to the configuration on 4700.
> >>Only thing I can think of. Looks like I need to try this on my routers.
> >>
> >> Kevin
> >>
> >>At 04:30 PM 9/13/00 +0000, you wrote:
> >> >That was the first thing I thought of, but the 4700 doesn't have
>enough memory to support IOS version 12, so it's running 11.3....The
>broadcast keyword doesn't work in 11.3.....Does it matter if the
>subinterface is point-to-point or multipoint? I'm using point-to-point
>(that seemed logical), but I'm not too comfortable with non-LANE ATM
>inplementations.
> >> >Thanks,
> >> >Jack
> >> >
> >> >
> >> >>From: "carl commander" <carl_commander@hotmail.com>
> >> >>Reply-To: "carl commander" <carl_commander@hotmail.com>
> >> >>To: jheneyccie@hotmail.com, kbaumgar@cisco.com
> >> >>CC: ccielab@groupstudy.com
> >> >>Subject: Re: Cat5500 Lane question
> >> >>Date: Wed, 13 Sep 2000 09:04:49 GMT
> >> >>
> >> >>Have you forgot to append the broadcast statement to the end of the
>atm pvc
> >> >>statements on your rfc 1483 atm routers.
> >> >>
> >> >>interface atm0.3 point-point
> >> >>atm pvc 3 4 44 aal5snap inarp 'broadcast'
> >> >>
> >> >>Carl.
> >> >>CCIE #5934
> >> >>
> >> >>
> >> >>>From: "Jack Heney" <jheneyccie@hotmail.com>
> >> >>>Reply-To: "Jack Heney" <jheneyccie@hotmail.com>
> >> >>>To: kbaumgar@cisco.com
> >> >>>CC: ccielab@groupstudy.com
> >> >>>Subject: Re: Cat5500 Lane question
> >> >>>Date: Wed, 13 Sep 2000 04:42:01 GMT
> >> >>>
> >> >>>Yeah...but now I have another strange problem.....
> >> >>>
> >> >>>------ ------------- -------- ------
> >> >>>|2600|-----|LANE Module|-----|LS1010|-----|4700|
> >> >>>------ ------------- -------- ------
> >> >>>
> >> >>>The 2600 has 172.16.2.1/24 on the ethernet int that connects to the
>lane
> >> >>>module, and the 4700 has 172.16.2.2/24 on the BVI interface that is
>linked
> >> >>>to the ATM subinterface. I am running EIGRP (both routers have
>others
> >> >>>attached). The strange part is that the 2600 has acquired the
>4700's BVI
> >> >>>interface as an EIGRP neighbor, but the 4700 cannot acquire the 2600
>as an
> >> >>>EIGRP neighbor even though it can ping it. When I debug EIGRP on
>the 4700,
> >> >>>I keep getting an "EIGRP:Neighbor not yet found" message. I tried
>entering
> >> >>>neighbor commands in the EIGRP configuration thinking that it was a
> >> >>>multicast-related problem, but that didn't seem to help. Any ideas?
> >> >>>
> >> >>>Thanks,
> >> >>>Jack
> >> >>>
> >> >>>
> >> >>>>From: Kevin Baumgartner <kbaumgar@cisco.com>
> >> >>>>To: jheneyccie@hotmail.com (Jack Heney)
> >> >>>>Subject: Re: Cat5500 Lane question
> >> >>>>Date: Tue, 12 Sep 2000 20:22:34 -0700 (PDT)
> >> >>>>
> >> >>>> So it works?
> >> >>>>
> >> >>>> >
> >> >>>> > Silly oversight...Thanks...You are clearly the man
> >> >>>> >
> >> >>>> >
> >> >>>> > >From: Kevin Baumgartner <kbaumgar@cisco.com>
> >> >>>> > >Reply-To: Kevin Baumgartner <kbaumgar@cisco.com>
> >> >>>> > >To: "Jack Heney" <jheneyccie@hotmail.com>
> >> >>>> > >CC: ccielab@groupstudy.com
> >> >>>> > >Subject: Re: Cat5500 Lane question
> >> >>>> > >Date: Tue, 12 Sep 2000 16:10:24 -0700
> >> >>>> > >
> >> >>>> > >Missing some configuration on 4700
> >> >>>> > >should add
> >> >>>> > >
> >> >>>> > >bridge 1 protocol ieee
> >> >>>> > >bridge 1 route ip
> >> >>>> > >
> >> >>>> > >- Kevin
> >> >>>> > >
> >> >>>> > >At 10:16 PM 9/12/00 +0000, you wrote:
> >> >>>> > > >This seems to make sense, and it resolved my ARP problem when
>I
> >> >>>>tried
> >> >>>>it
> >> >>>> > >(my 2600 and my 4700 learned each other's MAC addresses), but I
>still
> >> >>>>don't
> >> >>>> > >have IP connectivity...Here's my configs....
> >> >>>> > > >
> >> >>>> > > >---- ------- ------
> >> >>>>-----
> >> >>>> > >
> >2600-E0-------CAT5500-----ATM12/1/0-LS1010-ATM12/1/2------ATM0-4700
> >> >>>> > > >---- ------- ------
> >> >>>>-----
> >> >>>> > > >
> >> >>>> > > >CAT5500 Lane Module:
> >> >>>> > > >interface ATM0
> >> >>>> > > >atm preferred phy A
> >> >>>> > > >atm clock INTERNAL
> >> >>>> > > >atm pvc 1 0 5 qsaal
> >> >>>> > > >atm pvc 2 0 16 ilmi
> >> >>>> > > >atm pvc 3 3 33 aal5snap
> >> >>>> > > >atm bind pvc vlan 3 3
> >> >>>> > > >
> >> >>>> > > >LS1010:
> >> >>>> > > >interface ATM12/1/2
> >> >>>> > > >no ip address
> >> >>>> > > >no ip directed-broadcast
> >> >>>> > > >atm pvc 4 44 interface ATM12/1/0 3 33
> >> >>>> > > >
> >> >>>> > > >(the lane module is on atm 12/1/0, the 4700 is on 12/1/2)
> >> >>>> > > >
> >> >>>> > > >4700:
> >> >>>> > > >interface ATM0
> >> >>>> > > >no ip address
> >> >>>> > > >atm max-paks-vc 40
> >> >>>> > > >atm pvc 1 0 5 qsaal
> >> >>>> > > >atm pvc 2 0 16 ilmi
> >> >>>> > > >!
> >> >>>> > > >interface ATM0.3 point-to-point
> >> >>>> > > >atm pvc 3 4 44 aal5snap inarp
> >> >>>> > > >bridge-group 1
> >> >>>> > > >!
> >> >>>> > > >interface BVI1
> >> >>>> > > >ip address 172.16.2.2 255.255.255.0
> >> >>>> > > >!
> >> >>>> > > >bridge irb
> >> >>>> > > >
> >> >>>> > > >2600:
> >> >>>> > > >interface fastethernet 0/0
> >> >>>> > > > ip address 172.16.2.1 255.255.255.0
> >> >>>> > > >
> >> >>>> > > >Thanks again,
> >> >>>> > > >Jack Heney
> >> >>>> > > >
> >> >>>> > > >
> >> >>>> > > >
> >> >>>> > > >>From: "Scott F. Robohn" <sfr@mentortech.com>
> >> >>>> > > >>To: Jack Heney <jheneyccie@hotmail.com>
> >> >>>> > > >>CC: ccielab@groupstudy.com
> >> >>>> > > >>Subject: Re: Cat5500 Lane question
> >> >>>> > > >>Date: Tue, 12 Sep 2000 17:42:46 -0400
> >> >>>> > > >>
> >> >>>> > > >>Jack,
> >> >>>> > > >>
> >> >>>> > > >>Here's the problem: Your PVC on the LANE module is an
> >> >>>> > > >>RFC1483 *bridged* PVC and the PVC on your 4700 is an RFC1483
> >> >>>> > > >>*routed* PVC. tThe encapsulations must match, and the LANE
> >> >>>> > > >>module only supports the bridged mode.
> >> >>>> > > >>
> >> >>>> > > >>You need to put the 4700 subinterface in a bridge group to
> >> >>>> > > >>make that an RFC1483 bridged PVC, matching the encap on the
> >> >>>> > > >>LANE module. Then you can bridge that subinterface to
> >> >>>> > > >>another ethernet port on the 4700 with a PC plugged in, or
> >> >>>> > > >>you can do IRB on the 4700 and put an IP address on a BVI
> >> >>>> > > >>interface.
> >> >>>> > > >>
> >> >>>> > > >>You might want to check the archives and CCO on this; I
> >> >>>> > > >>think we've covered it before.
> >> >>>> > > >>
> >> >>>> > > >>Scott
> >> >>>> > > >>
> >> >>>> > > >>Jack Heney wrote:
> >> >>>> > > >> >
> >> >>>> > > >> > I have a Cat5500 with a LANE module (that doesn't support
>an IP
> >> >>>> > >address
> >> >>>> > > >> > assignment) and a 4700 with an ATM interface. Besides
>using
> >> >>>>LANE, is
> >> >>>> > >there
> >> >>>> > > >> > any way to connect these two devices? I tried creating a
>virtual
> >> >>>> > >circuit on
> >> >>>> > > >> > my ls1010, which I then bound to a VLAN on the LANE
>module.
> >>I
> >> >>>>then
> >> >>>> > >created
> >> >>>> > > >> > a subinterface (I tried both point-to-point and
>multipoint) on
> >> >>>>the
> >> >>>> > >router
> >> >>>> > > >> > and configured the pvc on the subinterface. I think my
>problem
> >> >>>>is
> >> >>>> > > >> > ARP-related, because the router learns MAC addresses
>across the
> >> >>>> > >virtual
> >> >>>> > > >> > circuit, but the pc's plugged into the switch (via
>ethernet)
> >> >>>>can't
> >> >>>> > >learn the
> >> >>>> > > >> > router's mac address. Am I trying to do something
>impossible,
> >> >>>>or
> >> >>>>am
> >> >>>> > >I
> >> >>>> > > >> > missing something? Any help would be greatly
>appreciated.
> >> >>>> > > >> >
> >> >>>> > > >> > Jack Heney
> >> >>>> > > >> >
> >> >>>> >
> >> >>>>
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