Hi Team,
I’ve been interested in learning Dynamic Multipoint VPN (DMVPN). So i tried configuring NHRP between two routers. One as the Hub router with a staic IP and the other is a spoke with dynamic IP. The GRE tunnel is up and i can ping the other end of the tunnel. But my issue is i can't ping any LAN interface on the Spoke router. I enabled debugging on the Hub and i am getting the below message when i tried to ping the LAN IP 192.168.1.253 [Spoke router etherent interafce Ip address]. I am not sure what is the issue, any assistance much appreciated.
Jan 20 04:43:07.964: NHRP: Encapsulation failed for destination 192.168.1.253 out Tunnel1111
Jan 20 04:43:08.784: NHRP: MACADDR: if_in null netid-in 0 if_out Tunnel1111 netid-out 1111
Jan 20 04:43:08.784: NHRP: Checking for delayed event /192.168.1.253 on list (Tunnel1111).
Jan 20 04:43:08.784: NHRP: No node found.
Jan 20 04:43:10.785: NHRP: MACADDR: if_in null netid-in 0 if_out Tunnel1111 netid-out 1111
Jan 20 04:43:10.785: NHRP: Checking for delayed event /192.168.1.253 on list (Tunnel1111).
Jan 20 04:43:10.785: NHRP: No node found.
Please find my config below:
Hub Router:
interface Tunnel1111
ip address 10.0.0.2 255.255.255.252
no ip redirects
ip mtu 1400
ip nhrp authentication xxxx
ip nhrp map multicast dynamic
ip nhrp network-id 1111
ip nhrp holdtime 600
delay 1000
tunnel source Dialer1
tunnel mode gre multipoint
tunnel key 2222
ip route 192.168.1.0 255.255.255.0 Tunnel1111
sh dmvpn
Legend: Attrb --> S - Static, D - Dynamic, I - Incomplete
N - NATed, L - Local, X - No Socket
# Ent --> Number of NHRP entries with same NBMA peer
NHS Status: E --> Expecting Replies, R --> Responding
UpDn Time --> Up or Down Time for a Tunnel
==========================================================================
Interface: Tunnel1111, IPv4 NHRP Details
Type:Hub, NHRP Peers:1,
# Ent Peer NBMA Addr Peer Tunnel Add State UpDn Tm Attrb
----- --------------- --------------- ----- -------- -----
1 xx.xx.xx.xx 10.0.0.1 UP 4d13h D
Spoke Router
interface Tunnel0
ip address 10.0.0.1 255.255.255.252
no ip redirects
ip mtu 1400
ip nhrp authentication xxxx
ip nhrp map multicast dynamic
ip nhrp map 10.0.0.2 xx.xx.xx.xx
ip nhrp map multicast xx.xx.xx.xx
ip nhrp network-id 1111
ip nhrp holdtime 600
ip nhrp nhs 10.0.0.2
delay 1000
tunnel source Dialer1
tunnel mode gre multipoint
tunnel key 2222
sh ip nhrp detail
10.0.0.2/32 via 10.0.0.2, Tunnel0 created 4d13h, never expire
Type: static, Flags: authoritative used
NBMA address: xx.xx.xx.xx
Thanks
Nachi
