DMVPN Problem

[sel18]

Hello,

I have a lab configured on dmvpn with eigrp, but on the hub i can't view any spoke and on the spoke there are the ip of the Hub but with a state : NHRP ( configuration below)

there are anyone here can help me please to make the state up.

HUB:

interface Tunnel1
ip address 172.16.0.8 255.255.255.0
no ip redirects
ip mtu 1476
ip nhrp authentication DMVPN
ip nhrp network-id 1
ip nhrp holdtime 100
ip nhrp nhs 172.16.0.8
ip nhrp redirect
ip tcp adjust-mss 1436
tunnel source 192.168.10.2
tunnel mode gre multipoint

Spoke:

interface Tunnel1
ip address 172.16.0.9 255.255.255.0
no ip redirects
ip mtu 1476
ip nhrp authentication DMVPN
ip nhrp map 172.16.0.8 192.168.10.2
ip nhrp map multicast 192.168.10.2
ip nhrp network-id 1
ip nhrp holdtime 100
ip nhrp nhs 172.16.0.8
ip nhrp shortcut
ip tcp adjust-mss 1436
tunnel source 192.168.11.2
tunnel mode gre multipoint

HUB

Router#sh dmvpn
Legend: Attrb --> S - Static, D - Dynamic, I - Incomplete
N - NATed, L - Local, X - No Socket
T1 - Route Installed, T2 - Nexthop-override
C - CTS Capable
# Ent --> Number of NHRP entries with same NBMA peer
NHS Status: E --> Expecting Replies, R --> Responding, W --> Waiting
UpDn Time --> Up or Down Time for a Tunnel
==========================================================================

SPOKE

Router#sh dmvpn
Legend: Attrb --> S - Static, D - Dynamic, I - Incomplete
N - NATed, L - Local, X - No Socket
T1 - Route Installed, T2 - Nexthop-override
C - CTS Capable
# Ent --> Number of NHRP entries with same NBMA peer
NHS Status: E --> Expecting Replies, R --> Responding, W --> Waiting
UpDn Time --> Up or Down Time for a Tunnel
==========================================================================

Interface: Tunnel1, IPv4 NHRP Details
Type:Spoke, NHRP Peers:1,

# Ent Peer NBMA Addr Peer Tunnel Add State UpDn Tm Attrb
----- --------------- --------------- ----- -------- -----
1 192.168.10.2 172.16.0.8 NHRP 00:38:07 S

--------------------

EIGRP

HUB:

router eigrp DMVPN
!
address-family ipv4 unicast autonomous-system 1
!
topology base
exit-af-topology
network 123.0.0.0
network 123.8.8.8 0.0.0.0
network 172.16.0.0
exit-address-family
!

Spoke

router eigrp DMVPN
!
address-family ipv4 unicast autonomous-system 1
!
topology base
exit-af-topology
network 123.9.9.9 0.0.0.0
network 172.16.0.0
exit-address-family
!

[sel18]

any other suggestion here please !

[Georg Pauwen]

Hello,

on the hub, it looks like you are missing the lines in bold:

interface Tunnel1
ip address 172.16.0.8 255.255.255.0
no ip redirects
ip mtu 1476
ip nhrp authentication DMVPN
--> ip nhrp map multicast dynamic
ip nhrp network-id 1
ip nhrp holdtime 100
ip nhrp nhs 172.16.0.8
--> no ip split-horizon eigrp 1
ip nhrp redirect
ip tcp adjust-mss 1436
tunnel source 192.168.10.2
tunnel mode gre multipoint

[sel18]

@georg

Thank you,

for the split-horizon, i used eigrp named ! how can i write eigrp 1 ?

and split-horizon didn't work with eigrp named 

[Georg Pauwen]

Hello,

router eigrp DMVPN
!
address-family ipv4 unicast autonomous-system 1
af-interface Tunnel1
no split-horizon

[sel18]

@georg

thank you

i added this for the HUB

[Emma Corry]

I have same problem, looking to this conversation like to some tv serial hoping to find any solutions.
Thanks all for your knowledge

[sel18]

hi again

any other solution here plz ! i try all the possible solution that i khonw but nothing is change !!

thank you for your helps

[sel18 · Accepted solution]

@Emma Corry 

i found the solution

first check the mpls config and be sure that #sh mpls ldp nei is right

then check the ospf config and the redistribute of bgp and ospf in all the router

then check in the PE  #sh ip bgp all sum or #sh ip bgp all is correct and the state is up.

this is what i did and now it's working.