From: Jongsoo.Kim@Intelsat.com
Date: Sun Mar 06 2005 - 12:05:46 GMT-3
Try to use real ip address instead of unnumbered.
I sort of remember real ip address works better.
-----Original Message-----
From: k c [mailto:jwongccie@yahoo.com.hk]
Sent: Sunday, March 06, 2005 6:56 AM
To: ccielab@groupstudy.com
Subject: Multicast GRE Problem
Hi Group,
R1(hub), R2 and R3 are spokes. All interfaces including tunnels configured
in dense mode. I have created a GRE tunnel between R2 amd R3, but PIM
neighbor cannot form using GRE tunnels between R2 and R3. R3 can send and
receive hello from to and from R2 (via tunnel), but R2 cannot receive hello
from R3. Any hints?
R2#sh run int tu 1
interface Tunnel1
ip unnumbered FastEthernet2/0
ip pim dense-mode
tunnel source 172.16.20.5
tunnel destination 172.16.30.3
R2# sh ip pim nei
PIM Neighbor Table
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
172.16.123.1(R1) Serial4/0 01:30:11/00:01:32 v2 1 / S
*Mar 7 02:28:02.475: PIM(0): Send periodic v2 Hello on Tunnel1
*Mar 7 02:28:04.671: PIM(0): Send periodic v2 Hello on Serial4/0
*Mar 7 02:28:11.091: PIM(0): Send periodic v2 Hello on FastEthernet2/0
*Mar 7 02:28:17.551: PIM(0): Send periodic v2 Hello on Loopback1
*Mar 7 02:28:17.551: PIM(0): Received v2 hello on Loopback1 from
172.16.20.5
*Mar 7 02:28:23.699: PIM(0): Received v2 hello on Serial4/0 from
172.16.123.1
R3-r1#sh run int tu 1
interface Tunnel1
ip unnumbered Loopback0
ip pim dense-mode
tunnel source 172.16.30.3
tunnel destination 172.16.20.5
ip mroute 172.16.25.5 255.255.255.255 Tunnel1
R3-r1#sh ip pim neighbor
PIM Neighbor Table
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
172.16.123.1(R1) Serial2/0 00:03:46/00:01:25 v2 1 / S
172.16.25.2(R2) Tunnel1 00:06:35/00:01:34 v2 1 / S
R3-r1#
R3-r1#
Mar 6 02:54:30.222: PIM(0): Received v2 hello on Serial2/0 from
172.16.123.1
Mar 6 02:54:30.410: PIM(0): Send periodic v2 Hello on Loopback1
Mar 6 02:54:30.410: PIM(0): Received v2 hello on Loopback1 from 172.16.30.3
Mar 6 02:54:31.006: PIM(0): Send periodic v2 Hello on Serial2/0
Mar 6 02:54:38.326: PIM(0): Send periodic v2 Hello on Tunnel1
Mar 6 02:54:39.242: PIM(0): Received v2 hello on Tunnel1 from 172.16.25.2
Mar 6 02:54:59.653: PIM(0): Send periodic v2 Hello on Loopback1
Mar 6 02:54:59.653: PIM(0): Received v2 hello on Loopback1 from 172.16.30.3
Mar 6 02:55:00.121: PIM(0): Received v2 hello on Serial2/0 from
172.16.123.1
---------------------------------
Yahoo! $u(c&C - $:8m(>$n<u%X5x5!$u/`!I
This archive was generated by hypermail 2.1.4 : Sun Apr 03 2005 - 17:56:42 GMT-3