DMVPN NHRP problem

From: Bozhidar Batev (b.batev@mobiltel.bg)
Date: Mon Nov 06 2006 - 06:01:42 ART


Hi,

I have 1 Cisco 7609 with IPSec VPN SPA modul which is my DMVPN hub
router and approximately 30 spokes 1841 routers. The spoke routers are
with the same config and IOS version.

I can't see 3 of them in NHRP table.

HUB

interface Tunnel30

 ip vrf forwarding innet

 ip address 192.168.65.65 255.255.255.224

 no ip redirects

 ip mtu 1470

 ip pim sparse-mode

 ip nhrp authentication GRE+nhrp

 ip nhrp map multicast dynamic

 ip nhrp network-id 6666

 ip nhrp holdtime 700

 ip ospf network broadcast

 ip ospf cost 5

 ip ospf priority 20

 tunnel source Vlan547

 tunnel mode gre multipoint

 tunnel key 200

 tunnel protection ipsec profile VPN

 crypto engine subslot 7/0

interface Vlan547

 description Inside Interface vlan for VPN SPA

 ip address 172.20.1.2 255.255.255.128

 ip access-group ACL_MAN in

 no mop enabled

 crypto engine subslot 7/0

SPOKE

interface Tunnel20

 ip address 192.168.65.72 255.255.255.224

 no ip redirects

 ip mtu 1470

 ip pim sparse-mode

 ip nhrp authentication GRE+nhrp

 ip nhrp map multicast 172.20.1.2

 ip nhrp map 192.168.65.65 172.20.1.2

 ip nhrp network-id 6666

 ip nhrp holdtime 700

 ip nhrp nhs 192.168.65.65

 ip tcp adjust-mss 1360

 ip ospf network broadcast

 ip ospf cost 5

 ip ospf priority 0

 qos pre-classify

 tunnel source FastEthernet0/1

 tunnel destination 172.20.1.2

 tunnel key 200

 tunnel protection ipsec profile VPN

interface FastEthernet0/1

 bandwidth 10000

 ip address 172.20.1.9 255.255.255.128

 duplex auto

 speed auto

 no cdp enable

 max-reserved-bandwidth 100

 service-policy output queueing-CE2PE

__________________________________________
HUB________________________________________

main-gw#sh ip nhrp

192.168.65.66/32 via 192.168.65.66, Tunnel30 created 2d19h, expire
00:09:01

  Type: dynamic, Flags: authoritative unique registered

  NBMA address: 172.20.1.3

192.168.65.67/32 via 192.168.65.67, Tunnel30 created 2d19h, expire
00:09:22

  Type: dynamic, Flags: authoritative unique registered used

  NBMA address: 172.20.1.4

192.168.65.68/32 via 192.168.65.68, Tunnel30 created 01:03:46, expire
00:09:38

  Type: dynamic, Flags: authoritative unique registered

  NBMA address: 172.20.1.5

192.168.65.70/32 via 192.168.65.70, Tunnel30 created 2d19h, expire
00:11:30

  Type: dynamic, Flags: authoritative unique registered used

  NBMA address: 172.20.1.7

192.168.65.71/32 via 192.168.65.71, Tunnel30 created 11:43:58, expire
00:10:29

  Type: dynamic, Flags: authoritative unique registered used

  NBMA address: 172.20.1.8

192.168.65.72/32, Tunnel30 created 00:01:12, expire 00:01:52

  Type: incomplete, Flags: negative

  Cache hits: 7

192.168.65.73/32 via 192.168.65.73, Tunnel30 created 20:35:48, expire
00:10:26

  Type: dynamic, Flags: authoritative unique registered

  NBMA address: 172.20.1.10

192.168.65.74/32 via 192.168.65.74, Tunnel30 created 2d19h, expire
00:07:53

  Type: dynamic, Flags: authoritative unique registered used

  NBMA address: 172.20.1.11

192.168.65.75/32 via 192.168.65.75, Tunnel30 created 2d19h, expire
00:10:23

  Type: dynamic, Flags: authoritative unique registered

  NBMA address: 172.20.1.12

192.168.65.76/32 via 192.168.65.76, Tunnel30 created 2d19h, expire
00:11:08

  Type: dynamic, Flags: authoritative unique registered used

  NBMA address: 172.20.1.13

192.168.65.77/32 via 192.168.65.77, Tunnel30 created 01:17:10, expire
00:11:38

  Type: dynamic, Flags: authoritative unique registered used

  NBMA address: 172.20.1.14

192.168.65.78/32 via 192.168.65.78, Tunnel30 created 2d19h, expire
00:11:11

  Type: dynamic, Flags: authoritative unique registered used

  NBMA address: 172.20.1.16

Debug NHRP

Nov 6 10:53:04 BG: NHRP: Checking for delayed event
0.0.0.0/192.168.65.72 on list (Tunnel30).

Nov 6 10:53:04 BG: NHRP: No node found.

Nov 6 10:53:04 BG: NHRP: Attempting to send packet via DEST
192.168.65.72

Nov 6 10:53:04 BG: NHRP: Send Resolution Request via Tunnel30, packet
size: 84

Nov 6 10:53:04 BG: src: 192.168.65.65, dst: 192.168.65.72

Nov 6 10:53:04 BG: NHRP: Encapsulation failed for destination
192.168.65.72 out Tunnel30



This archive was generated by hypermail 2.1.4 : Fri Dec 01 2006 - 08:05:45 ART