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no results in cisco router c-7200 "show ip route nhrp"

JunaidM
Level 1
Level 1

Hi,

I am configuring a DMVPN between cisco routers and looks everything is working fine I can see traffic is going from Spoke-1 to Spoke-2 but I am not able to see any routes with "H" which is NHRP when am doing "show ip route nhrp" in cisco router c-7200.

Can anyone guide me please where can be the problem?

Thank you in advance.

14 Replies 14

What is dmvpn phase ?

Can i see condig of hub and spoke ?

JunaidM
Level 1
Level 1

* It's Phase 3, sure here is the configuration.

HUB
interface Tunnel1
 ip address 10.1.1.1 255.255.255.0
 no ip redirects
 no ip next-hop-self eigrp 1
 no ip split-horizon eigrp 1
 ip nhrp authentication DMVPN
 ip nhrp map multicast dynamic
 ip nhrp network-id 1234
 ip nhrp redirect
 ip summary-address eigrp 1 192.168.0.0 255.255.0.0
 tunnel source FastEthernet0/0
 tunnel mode gre multipoint
 tunnel key 12345
 tunnel protection ipsec profile PROF
end

Spoke-1
interface Tunnel1
 ip address 10.1.1.2 255.255.255.0
 no ip redirects
 ip nhrp authentication DMVPN
 ip nhrp map 10.1.1.1 1.1.1.1
 ip nhrp map multicast 1.1.1.1
 ip nhrp network-id 1234
 ip nhrp nhs 10.1.1.1
 ip nhrp shortcut
 tunnel source FastEthernet0/0
 tunnel mode gre multipoint
 tunnel key 12345
 tunnel protection ipsec profile PROF
end

Spoke-2
interface Tunnel1
 ip address 10.1.1.3 255.255.255.0
 no ip redirects
 ip nhrp authentication DMVPN
 ip nhrp map multicast 1.1.1.1
 ip nhrp map 10.1.1.1 1.1.1.1
 ip nhrp network-id 1234
 ip nhrp nhs 10.1.1.1
 ip nhrp shortcut
 tunnel source FastEthernet0/0
 tunnel mode gre multipoint
 tunnel key 12345
 tunnel protection ipsec profile PROF
end

 

 ip summary-address eigrp 1 192.168.0.0 255.255.0.0

This summary to all prefix connect to Spoke?

JunaidM
Level 1
Level 1

Here is the topology

JunaidM_0-1688686557951.png

 

Config is correct'

In Spoke 

Ping 192.168.3.x source 192.168.2.x 

Please select x according to LO IP you use in spokes

JunaidM
Level 1
Level 1

R2#ping 192.168.3.1 source 192.168.2.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.1, timeout is 2 seconds:
Packet sent with a source address of 192.168.2.1 
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 92/184/464 ms

R2#traceroute 192.168.3.1 source 192.168.2.1
Type escape sequence to abort.
Tracing the route to 192.168.3.1
VRF info: (vrf in name/id, vrf out name/id)
  1 10.1.1.3 68 msec 100 msec 112 msec
R2#

JunaidM
Level 1
Level 1

Traffic looks going from spoke-1 to spoke-2 but it's via NHRP which am not able to see the status in the routing table if there is any dynamic (direct spoke-to-spoke) tunnel.

R2#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area 
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
       + - replicated route, % - next hop override

Gateway of last resort is not set
      1.0.0.0/30 is subnetted, 1 subnets
B        1.1.1.0 [20/0] via 2.2.2.1, 00:31:21
      2.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        2.2.2.0/30 is directly connected, FastEthernet0/0
L        2.2.2.2/32 is directly connected, FastEthernet0/0
      3.0.0.0/24 is subnetted, 1 subnets
B        3.3.3.0 [20/0] via 2.2.2.1, 00:31:21
      8.0.0.0/32 is subnetted, 1 subnets
B        8.8.8.8 [20/0] via 2.2.2.1, 00:31:21
      10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C        10.1.1.0/24 is directly connected, Tunnel1
L        10.1.1.2/32 is directly connected, Tunnel1
D     192.168.0.0/16 [90/27008000] via 10.1.1.1, 00:30:49, Tunnel1
      192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.2.0/24 is directly connected, Loopback0
L        192.168.2.1/32 is directly connected, Loopback0
      192.168.20.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.20.0/24 is directly connected, Loopback1
L        192.168.20.1/32 is directly connected, Loopback1
R2#

can I see 
show run | sec router eigrp <<- in Hub and Spoke ?

JunaidM
Level 1
Level 1

HUB#sho run | s router eigrp
router eigrp 1
 network 10.1.1.0 0.0.0.255
 network 192.168.1.0
 network 192.168.10.0

Spoke-1#sho run | s router eigrp
router eigrp 1
 network 10.1.1.0 0.0.0.255
 network 192.168.2.0
 network 192.168.20.0

Spoke-2#sho run | s router eigrp
router eigrp 1
 network 10.1.1.0 0.0.0.255
 network 192.168.3.0
 network 192.168.30.0

please see below post.
thanks 

JunaidM
Level 1
Level 1

I had build the same LAB again it looks to me the problem with the image because it was running in virtual environment instead of physical devices so the IOS image was different on HUB and Spokes after using the same images as HUB was being used, problem solved and routes showed in the routing table.
Because could not see any configuration missing/wrong in above tunnel interface.

Sorry I do not know your name @MHM Cisco World but thank you brother.

thanks for update me, 
so c-7200 image is issue in GNS3. 
that new
glad issue solve 
have a nice day 
MHM

tonight I will run same lab I share before but this time with bgp as underlay protocol.

You are totally correct 
run lab with BGP as underlaying and It work fine.
MHM

Screenshot (917).png