DMVPN eigrp flap issue...

Hey Experts,

I need some valuable help from you on the scenario below:

1) I am working out dmvpn PHASE 1 on gns3.with 1 HUB and 2 spokes..

2)I have advertised 1.1.1.0 and 10.0.0.0 networks in eigrp
I have given "eigrp stub connected" on both the spokes.
MY eigrp neigh looks like this:

HUB#sh ip eigrp ne
IP-EIGRP neighbors for process 10
H Address Interface Hold Uptime SRTT RTO Q Seq
Typ
e
                                            (sec) (ms) Cnt Num
3 10.0.0.2 Tu0 13 00:00:06 1 4500 1 0
2 10.0.0.3 Tu0 11 00:00:12 1 5000 1 0
1 1.1.1.3 Se0/0.1 151 00:12:27 1 5000 0 14
0 1.1.1.2 Se0/0.1 142 00:12:51 372 2232 0 13

2)FR works fine but my neighborships flap like anything..

PLS LET ME KNOW IF YOU WANT ANY DEBUG OUTPUTS ON THIS SCENARIO....

HUB#sh run int s0/0.1
Building configuration...

Current configuration : 188 bytes
!
interface Serial0/0.1 multipoint
 ip address 1.1.1.1 255.255.255.0
 no ip split-horizon eigrp 10
 frame-relay map ip 1.1.1.2 101 broadcast
 frame-relay map ip 1.1.1.3 301 broadcast
end

interface Tunnel0
 ip address 10.0.0.1 255.255.255.0
 no ip redirects
 ip nhrp authentication cisco
 ip nhrp map multicast dynamic
 no ip split-horizon eigrp 10
 tunnel source Serial0/0.1
 tunnel mode gre multipoint
 tunnel key 123
end
------
SPOKE 1

interface Tunnel0
 ip address 10.0.0.3 255.255.255.0
 no ip redirects
 ip nhrp authentication cisco
 ip nhrp map multicast 1.1.1.1
 ip nhrp map 10.0.0.1 1.1.1.1
 ip nhrp nhs 10.0.0.1
 tunnel source Serial0/0
 tunnel destination 1.1.1.1
 tunnel key 123
end

SPOKE1(config)#do sh run int s0/0
Building configuration...

Current configuration : 224 bytes
!
interface Serial0/0
 ip address 1.1.1.3 255.255.255.0
 encapsulation frame-relay
 serial restart_delay 0
 frame-relay map ip 1.1.1.1 401 broadcast
 frame-relay map ip 1.1.1.2 401 broadcast
 no frame-relay inverse-arp
end

SPOKE1(config)#
------

SPOKE2

interface Tunnel0
 ip address 10.0.0.2 255.255.255.0
 no ip redirects
 ip nhrp authentication cisco
 ip nhrp map multicast 1.1.1.1
 ip nhrp map 10.0.0.1 1.1.1.1
 ip nhrp nhs 10.0.0.1
 tunnel source Serial0/0
 tunnel destination 1.1.1.1
 tunnel key 123
end

SPOKE2(config)#do sh run int s0/0
Building configuration...

Current configuration : 224 bytes
!
interface Serial0/0
 ip address 1.1.1.2 255.255.255.0
 encapsulation frame-relay
 serial restart_delay 0
 frame-relay map ip 1.1.1.1 201 broadcast
 frame-relay map ip 1.1.1.3 201 broadcast
 no frame-relay inverse-arp
end

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Received on Tue Jan 26 2010 - 17:36:52 ART