From: alsontra@hotmail.com
Date: Wed Feb 04 2004 - 01:36:36 GMT-3
Group,
As always, I'm assuming that some major misconception is keeping me
from figuring out a problem I'm having with a GRE tunnel configuration. The
configuration is extremely simple, but I can't figure out why I am unable to
ping the local tunnel interface on SW1.
Topology
R5---------R2------------SW1
- -
--------tunnel0---------
On R5 I can ping the local and remote tunnel interface, but on SW1 I can only
ping the remote tunnel interface. I've double checked the IGP and everything
looks ok. I can ping all interfaces from R5. However, for some reason on SW1 I
can not ping the local tunnel interface. What have missed?
R5_CONFIG_abbreviated
__________________________________________
#
R5#sh run
!
ip subnet-zero
ip tcp synwait-time 5
no ip domain-lookup
!
ip multicast-routing
ip dvmrp route-limit 20000
!
!
interface Tunnel0
ip address 10.1.2.5 255.255.255.0
no ip directed-broadcast
tunnel source Serial0/2
tunnel destination 150.1.1.47
!
interface Serial0/2
ip address 141.1.1.5 255.255.255.0
ip directed-broadcast
ip pim nbma-mode
ip pim sparse-mode
encapsulation frame-relay
no ip split-horizon eigrp 100
no fair-queue
cdp enable
frame-relay map ip 141.1.1.2 130 broadcast
frame-relay map ip 141.1.1.6 120 broadcast
frame-relay lmi-type cisco
!
router eigrp 100
network 128.1.0.0
network 141.1.0.0
network 171.1.0.0
network 223.1.1.0
no auto-summary
!
ip classless
no ip http server
ip pim send-rp-announce Loopback1 scope 16
ip pim send-rp-discovery Loopback1 scope 16
!
R5#
R5#sh ip route
Gateway of last resort is not set
1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.5 is directly connected, Loopback0
223.1.1.0/32 is subnetted, 4 subnets
D 223.1.1.6 [90/2297856] via 141.1.1.6, 02:21:25, Serial0/2
C 223.1.1.5 is directly connected, Loopback1
D 223.1.1.2 [90/2297856] via 141.1.1.2, 02:41:38, Serial0/2
D 223.1.1.47 [90/2323456] via 141.1.1.2, 00:04:45, Serial0/2
191.1.0.0/24 is subnetted, 1 subnets
C 191.1.1.0 is directly connected, Loopback2
141.1.0.0/24 is subnetted, 1 subnets
C 141.1.1.0 is directly connected, Serial0/2
128.1.0.0/24 is subnetted, 1 subnets
C 128.1.1.0 is directly connected, Ethernet0/1
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.2.0 is directly connected, Tunnel0
180.1.0.0/24 is subnetted, 1 subnets
C 180.1.1.0 is directly connected, Ethernet0/0
150.1.0.0/24 is subnetted, 1 subnets
D 150.1.1.0 [90/2195456] via 141.1.1.2, 02:41:42, Serial0/2
R2_CONFIG(not really important)
SW1_CONFIG_abbreviated
__________________________________________
hostname SW1
!
interface Loopback1
ip address 223.1.1.47 255.255.255.255
!
interface Tunnel0
ip address 10.1.2.47 255.255.255.0
tunnel source Vlan13
tunnel destination 141.1.1.5
!
interface Vlan13
ip address 150.1.1.47 255.255.255.0
ip pim sparse-dense-mode
!
router eigrp 100
network 150.1.0.0
network 223.1.1.0
no auto-summary
no eigrp log-neighbor-changes
!
SW1#sh ip route
Gateway of last resort is not set
223.1.1.0/32 is subnetted, 4 subnets
D 223.1.1.6 [90/2810112] via 150.1.1.2, 00:00:19, Vlan13
D 223.1.1.5 [90/2298112] via 150.1.1.2, 00:00:19, Vlan13
D 223.1.1.2 [90/130816] via 150.1.1.2, 00:00:19, Vlan13
C 223.1.1.47 is directly connected, Loopback1
141.1.0.0/24 is subnetted, 1 subnets
D 141.1.1.0 [90/2170112] via 150.1.1.2, 00:00:19, Vlan13
128.1.0.0/24 is subnetted, 1 subnets
D 128.1.1.0 [90/2195712] via 150.1.1.2, 00:00:19, Vlan13
160.1.0.0/24 is subnetted, 1 subnets
C 160.1.1.0 is directly connected, Vlan12
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.2.0 is directly connected, Tunnel0
150.1.0.0/24 is subnetted, 1 subnets
C 150.1.1.0 is directly connected, Vlan13
Thanks,
Alsontra
This archive was generated by hypermail 2.1.4 : Fri Mar 05 2004 - 07:13:45 GMT-3