From: Fong, Eddy (Eddy.Fong@xxxxxx)
Date: Thu Aug 22 2002 - 01:03:46 GMT-3
>From your diagram, the EIGRP neighbors are formed via serial links only. And t
otally agree with Jim that the
EIGRP hello (via multicast) is sending and receiving in only one broadcast doma
in with three subnets.
Try to passive the ethernet interface since you don't need neighbor there, if y
ou are only using switch where VLAN is
no configurable, or you are just using a hub.
Best Regards,
Eddy Fong
-----Original Message-----
From: Jim Brown [mailto:Jim.Brown@caselogic.com]
Sent: Thursday, August 22, 2002 11:35 AM
To: 'Jason Cash'; ccielab@groupstudy.com
Subject: RE: EIGRP / common subnet error msg
Are the routers connected to a switch? Are the interfaces connected to the
switch in different VLANs? I would bet you have each routers Ethernet
interfaces connected to a switch and the all interfaces are in the same
default VLAN.
Each router is seeing the hellos from every interface and they are
complaining about different subnets in the hellos than what is configured
for the receiving interface.
Try segregating the interfaces into separate VLANs and see if the messages
disappear.
-----Original Message-----
From: Jason Cash [mailto:cash2001@swbell.net]
Sent: Wednesday, August 21, 2002 7:28 PM
To: ccielab@groupstudy.com
Subject: EIGRP / common subnet error msg
Running the EIGRP lab (pg.732) in the Solie book and keep receiving the
following EIGRP errors on:
BARNEYs router :
00:25:49: IP-EIGRP: Neighbor 172.16.60.1 not on common subnet for
Ethernet0 (172.16.3.1 255.255.255.0)
00:26:01: IP-EIGRP: Neighbor 172.16.50.5 not on common subnet for
Ethernet0 (172.16.3.1 255.255.255.0)
00:26:13: IP-EIGRP: Neighbor 172.16.60.1 not on common subnet for
Ethernet0 (172.16.3.1 255.255.255.0)
00:26:25: IP-EIGRP: Neighbor 172.16.50.5 not on common subnet for
Ethernet0 (172.16.3.1 255.255.255.0)
On Solar Bucks:
00:26:26: IP-EIGRP: Neighbor 172.16.60.1 not on common subnet for
Ethernet0 (172.16.50.5 255.255.255.0)
00:26:37: IP-EIGRP: Neighbor 172.16.3.1 not on common subnet for
Ethernet0 (172.16.50.5 255.255.255.0)
00:26:49: IP-EIGRP: Neighbor 172.16.60.1 not on common subnet for
Ethernet0 (172.16.50.5 255.255.255.0)
My question is this. I can stop the error msgs with 'no eigrp
log-neighbor-warnings' but I am concerned that this is not the best
workaround. I am running 12.2 code. Should I find another way or is
this to be expected with interface in different subnets? Here are the
configs. Also, are small attachments allowed on this group as I have a
scanner and would like to attach the topology map:
Solar_Bucks
/ \
/ \
G_and_S ----------------- Barney's
G_S
hostname r1
!
logging rate-limit console 10 except errors
!
ip subnet-zero
no ip finger
no ip domain-lookup
!
no ip dhcp-client network-discovery
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
interface Ethernet0
ip address 172.16.60.1 255.255.255.0
no ip route-cache
no ip mroute-cache
!
interface Serial0
no ip address
encapsulation frame-relay
no ip route-cache
no ip mroute-cache
no fair-queue
!
interface Serial0.1 point-to-point
ip address 172.16.128.2 255.255.255.252
no ip route-cache
frame-relay interface-dlci 102
!
interface Serial0.2 point-to-point
ip address 172.16.128.9 255.255.255.252
no ip route-cache
frame-relay interface-dlci 103
!
interface Serial1
no ip address
no ip route-cache
no ip mroute-cache
shutdown
!
router eigrp 1
network 172.16.0.0
auto-summary
no eigrp log-neighbor-changes
Solar Bucks
hostname r2
!
logging rate-limit console 10 except errors
!
ip subnet-zero
no ip finger
no ip domain-lookup
!
no ip dhcp-client network-discovery
!
interface Loopback0
ip address 2.2.2.2 255.255.255.0
!
interface Ethernet0
ip address 172.16.50.5 255.255.255.0
no ip route-cache
no ip mroute-cache
!
interface Serial0
no ip address
encapsulation frame-relay
no ip route-cache
no ip mroute-cache
!
interface Serial0.1 point-to-point
ip address 172.16.128.1 255.255.255.252
no ip route-cache
frame-relay interface-dlci 201
!
interface Serial0.2 point-to-point
ip address 172.16.128.5 255.255.255.252
no ip route-cache
frame-relay interface-dlci 203
!
interface Serial1
no ip address
no ip route-cache
no ip mroute-cache
shutdown
!
router eigrp 1
network 172.16.0.0
auto-summary
no eigrp log-neighbor-changes
!
Barney's
Current configuration : 1270 bytes
hostname r3
!
logging rate-limit console 10 except errors
!
ip subnet-zero
no ip finger
no ip domain-lookup
!
no ip dhcp-client network-discovery
!
interface Loopback0
ip address 172.16.20.1 255.255.255.0
!
interface Ethernet0
ip address 172.16.3.1 255.255.255.0
no ip route-cache
no ip mroute-cache
!
interface Serial0
no ip address
encapsulation frame-relay
no ip route-cache
no ip mroute-cache
no fair-queue
!
interface Serial0.1 point-to-point
ip address 172.16.128.6 255.255.255.252
no ip route-cache
frame-relay interface-dlci 302
!
interface Serial0.2 point-to-point
ip address 172.16.128.10 255.255.255.252
no ip route-cache
frame-relay interface-dlci 301
!
interface Serial1
no ip address
no ip route-cache
no ip mroute-cache
shutdown
!
router eigrp 1
network 172.16.0.0
auto-summary
no eigrp log-neighbor-changes
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:48:32 GMT-3