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DMVPN Peer unknown issue

Hi  all , 

 

I have problem with DMVPN tunnels . 

Using 3G as backup on 880 router . After reboot of router 3G is working but dmvpn do not work . Any solution ? Some help ?

On HUB i get this 

    0 UNKNOWN             172.29.3.26  NHRP    never    IX

 

on SPOKE i have this :

Interface: Tunnel2, IPv4 NHRP Details 
Type:Spoke, NHRP Peers:1, 

 # Ent  Peer NBMA Addr Peer Tunnel Add State  UpDn Tm Attrb
 ----- --------------- --------------- ----- -------- -----
     1 <hub__Public_IP>     172.29.3.254  NHRP    3d21h     S

 

 

 

SPOKE:

 

interface Tunnel2
 ip address 172.29.3.13 255.255.255.0
 no ip redirects
 ip mtu 1440
 no ip next-hop-self eigrp 1
 no ip split-horizon eigrp 1
 ip nhrp authentication cisco123
 ip nhrp map multicast dynamic
 ip nhrp map 172.29.3.254  <hub__Public_IP>
 ip nhrp map multicast  <hub__Public_IP>
 ip nhrp network-id 2
 ip nhrp nhs 172.29.3.254
 delay 60000
 keepalive 20 3
 tunnel source Cellular0
 tunnel mode gre multipoint
 tunnel key 200

 

HUB:

interface Tunnel201
 ip address 172.29.3.254 255.255.255.0
 no ip redirects
 ip mtu 1440
 no ip next-hop-self eigrp 1
 no ip split-horizon eigrp 1
 ip nhrp authentication cisco123
 ip nhrp map multicast dynamic
 ip nhrp network-id 2
 delay 60000
 tunnel source <hub__Public_IP>
 tunnel mode gre multipoint
 tunnel key 200

 

 

 

Thanks 

KR

VZ

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