Re: DMVPN eigrp flap issue...

How are you reaching the tunnel destination? Through EIGRP, another IGP or
static routes?

Regards

Farrukh

On Tue, Jan 26, 2010 at 3:06 PM, Naufal Jamal <naufalccie_at_yahoo.in> wrote:

> 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 - 15:17:57 ART