From: Justin Menga (Justin.Menga@xxxxxxxxxxxxxxxxxx)
Date: Tue Dec 12 2000 - 08:21:48 GMT-3
Apple local routing has nothing to do with EIGRP/RTMP. It does not affect
routing updates at all.
Apple local-routing IS the solution to this problem. IP and IPX 'locally'
route by default. Appletalk does not. All that is happening is that R3
sends an apple packet destined for R2 to R5 (as this is the hub router).
When R5 processes this packet, it will reroute that packet out the PVC to R2
ONLY if appletalk local-routing is enabled (or of course if R2 was on a
different cable range) and it has a frame map to R2. THe same applies vice
versa.
When R3 sends routing updates, they are broadcast to R5. R5 processes
these, then will re-broadcast these out to R2, as long as split-horizon is
DISABLED. Thus R2 learns about R3 routes and vice versa. R5 is not
rerouting the packets locally in this case - it is accepting route updates
and then genrating new updates to the other spoke based on these.
:) Justin
-----Original Message-----
From: watsonf [mailto:watsonf@gte.net]
Sent: Tuesday, December 12, 2000 8:29 PM
To: Steve Clubb; ccielab@groupstudy.com
Subject: Re: Appletalk Routing Issue
Steve,
This looks like a Frame Relay map issue at your spoke routers (r3 & r2). If
it were an "apple local routing" issue, you wouldn't see r3's routes at r2.
Caslow's book is an excellent reference for this.
Resolution is static frame map statements at each spoke. r3 needs a map to
r5 AND r2, and vice versa.
Fred Watson
CCIE #6561
----- Original Message -----
From: "Steve Clubb" <sclubb@cattech.com>
To: <ccielab@groupstudy.com>
Sent: Monday, December 11, 2000 2:20 PM
Subject: Appletalk Routing Issue
> I have an Appletalk Routing Issue that I haven't been able to resolve.
>
> Here's the layout:
>
> r5
> / \
> r3 r2
>
> R2, R3 and R5 are on the same frame ip subnet.
>
> All of IP is working. Apple eigrp-splithorizon is disabled on R5's
> subinterface to R2 & R3.
>
> R3 is getting all of R5 routes and R2 routes as shown in its routing
table.
> R2 is getting all of R5 routes and R3 routes as shown in its routing table
> (below)
> R5 is getting all of R2 and R3's routes.
>
> R5 can ping all of R2 and R3.
>
> R2 can ping all of R5 but NOT R3
> R3 can ping all of R5 but NOT R2
>
> I've added frame map statements in all combonations without any success
(but
> have taken them off as shown below)
>
> Any suggestions?
>
> Thanks!
>
> Config below
>
> ***********
>
> r5#
> appletalk routing eigrp 5
> appletalk route-redistribution
> !
> interface Serial0.23 multipoint
> ip address 137.20.23.5 255.255.255.224
> ip ospf network point-to-multipoint
> appletalk cable-range 5023-5023 5023.5
> appletalk zone frame
> appletalk protocol eigrp
> no appletalk protocol rtmp
> no appletalk eigrp-splithorizon
> ipx network 5023
> no ipx split-horizon eigrp 1
> frame-relay de-group 1 102
> frame-relay map ipx 5023.0010.7b81.a377 103 broadcast
> frame-relay map ip 137.20.23.2 102 broadcast
> frame-relay map ip 137.20.23.3 103 broadcast
> frame-relay map ipx 5023.0010.7b81.a35b 102 broadcast
>
> r3#
> appletalk routing eigrp 3
> appletalk route-redistribution
> !
> interface Serial0
> ip address 137.20.23.3 255.255.255.224
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> keepalive 15
> appletalk cable-range 5023-5023 5023.3
> appletalk zone frame
> appletalk protocol eigrp
> no appletalk protocol rtmp
> ipx network 5023
> no fair-queue
> frame-relay map ipx 5023.00d0.58ad.ad32 203 broadcast
> frame-relay map ip 137.20.23.2 203 broadcast
> frame-relay map ip 137.20.23.5 203 broadcast
> frame-relay map ipx 5023.0010.7b81.a35b 203 broadcast
>
> r2#
> appletalk routing eigrp 2
> appletalk route-redistribution
> !
> interface Serial0
> ip address 137.20.23.2 255.255.255.224
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> keepalive 15
> appletalk cable-range 5023-5023 5023.2
> appletalk zone frame
> appletalk protocol eigrp
> no appletalk protocol rtmp
> ipx network 5023
> no fair-queue
> frame-relay map ipx 5023.0010.7b81.a377 202 broadcast
> frame-relay map ipx 5023.00d0.58ad.ad32 202 broadcast
> frame-relay map ip 137.20.23.3 202 broadcast
>
> r2#sar
> Codes: R - RTMP derived, E - EIGRP derived, C - connected, A - AURP
> S - static P - proxy
> 8 routes in internet
>
> The first zone listed for each entry is its default (primary) zone.
>
> C Net 200 directly connected, Ethernet0, zone r2ether
> E Net 569-569 [1/G] via 5023.5, 2074 sec, Serial0, zone r5r6r10
> E Net 900-900 [3/G] via 5023.5, 2074 sec, Serial0, zone r9ether
> E Net 1009-1009 [2/G] via 5023.5, 2074 sec, Serial0, zone r9r10
> E Net 2003-2003 [2/G] via 5023.5, 593 sec, Serial0, zone r2r3zone
> E Net 3000-3000 [2/G] via 5023.5, 2033 sec, Serial0, zone r3ether
> E Net 5006-5006 [1/G] via 5023.5, 2075 sec, Serial0, zone r5r6zone
> C Net 5023-5023 directly connected, Serial0, zone framer5#
> appletalk routing eigrp 5
> appletalk route-redistribution
> !
> interface Serial0.23 multipoint
> ip address 137.20.23.5 255.255.255.224
> ip ospf network point-to-multipoint
> appletalk cable-range 5023-5023 5023.5
> appletalk zone frame
> appletalk protocol eigrp
> no appletalk protocol rtmp
> no appletalk eigrp-splithorizon
> ipx network 5023
> no ipx split-horizon eigrp 1
> frame-relay de-group 1 102
> frame-relay map ipx 5023.0010.7b81.a377 103 broadcast
> frame-relay map ip 137.20.23.2 102 broadcast
> frame-relay map ip 137.20.23.3 103 broadcast
> frame-relay map ipx 5023.0010.7b81.a35b 102 broadcast
>
> r3#
> appletalk routing eigrp 3
> appletalk route-redistribution
> !
> interface Serial0
> ip address 137.20.23.3 255.255.255.224
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> keepalive 15
> appletalk cable-range 5023-5023 5023.3
> appletalk zone frame
> appletalk protocol eigrp
> no appletalk protocol rtmp
> ipx network 5023
> no fair-queue
> frame-relay map ipx 5023.00d0.58ad.ad32 203 broadcast
> frame-relay map ip 137.20.23.2 203 broadcast
> frame-relay map ip 137.20.23.5 203 broadcast
> frame-relay map ipx 5023.0010.7b81.a35b 203 broadcast
>
> r2#
> appletalk routing eigrp 2
> appletalk route-redistribution
> !
> interface Serial0
> ip address 137.20.23.2 255.255.255.224
> encapsulation frame-relay
> ip ospf network point-to-multipoint
> keepalive 15
> appletalk cable-range 5023-5023 5023.2
> appletalk zone frame
> appletalk protocol eigrp
> no appletalk protocol rtmp
> ipx network 5023
> no fair-queue
> frame-relay map ipx 5023.0010.7b81.a377 202 broadcast
> frame-relay map ipx 5023.00d0.58ad.ad32 202 broadcast
> frame-relay map ip 137.20.23.3 202 broadcast
>
> r2#sar
> Codes: R - RTMP derived, E - EIGRP derived, C - connected, A - AURP
> S - static P - proxy
> 8 routes in internet
>
> The first zone listed for each entry is its default (primary) zone.
>
> C Net 200 directly connected, Ethernet0, zone r2ether
> E Net 569-569 [1/G] via 5023.5, 2074 sec, Serial0, zone r5r6r10
> E Net 900-900 [3/G] via 5023.5, 2074 sec, Serial0, zone r9ether
> E Net 1009-1009 [2/G] via 5023.5, 2074 sec, Serial0, zone r9r10
> E Net 2003-2003 [2/G] via 5023.5, 593 sec, Serial0, zone r2r3zone
> E Net 3000-3000 [2/G] via 5023.5, 2033 sec, Serial0, zone r3ether
> E Net 5006-5006 [1/G] via 5023.5, 2075 sec, Serial0, zone r5r6zone
> C Net 5023-5023 directly connected, Serial0, zone frame
>
>
> ********************
>
> Steve
>
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