Hi,
i want to implement DMVPN to one of our branch as a fail over link if the MPLS point to point is down.
The MPLS VPN is working fine but due to SP faults we are experiencing frequent link downs.so i want to place a dsl router at branch and configure DMVPN to our existing HUB router.
i am configuring branch router as a spoke to HUB router R3 with rip so when the MPLS which using eigrp goes down , then DMVPN link should be up depending upon AD but, my doubt is if again MPLS link gets up, will it switchover to MPLS from DMVPN.
here is the topology
Here is the configurations for HO,HUB and Branch Routers
******** HO ********
interface Tunnel102
description " Tunnel HO-Br3"
bandwidth 2048
ip address 10.10.0.10 255.255.255.252
tunnel source 172.33.1.18
tunnel destination 172.33.33.18
!
interface FastEthernet0/0
description "HO-LAN"
ip address 192.168.1.10 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
description " Connection MPLS SP"
ip address 172.33.1.18 255.255.255.252
duplex full
speed 100
!
router eigrp 200
redistribute ospf 10 metric 512 600 100 100 1500
network 10.10.0.8 0.0.0.3
no auto-summary
!
router ospf 10
log-adjacency-changes
redistribute eigrp 200 subnets
redistribute bgp 65350 subnets
network 192.168.12.0 0.0.0.255 area 0
!
router bgp 65350
no synchronization
bgp log-neighbor-changes
bgp redistribute-internal
network 10.10.10.0 mask 255.255.255.0
neighbor 172.31.3.17 remote-as 65400
no auto-summary
----------------------------------------------------------------------------------------------------
******** HUB *********
(Fail over DMVPN with RIP )
crypto isakmp policy 1
encr 3des
authentication pre-share
group 2
lifetime 3600
crypto isakmp key welc0me address 74.99.128.25
crypto ipsec transform-set strong esp-3des
crypto ipsec profile cisco
set security-association lifetime seconds 7200
set transform-set strong
interface Tunnel10
bandwidth 1024
ip address 172.20.20.2 255.255.255.0
no ip redirects
ip mtu 1400
ip nhrp authentication
ip nhrp map multicast 74.99.128.25
ip nhrp map 172.20.20.1 74.99.128.25
ip nhrp network-id 250
ip nhrp holdtime 300
ip nhrp nhs 172.20.20.1
ip nhrp registration no-unique
ip tcp adjust-mss 1360
no ip split-horizon
delay 1000
tunnel source FastEthernet4
tunnel destination 74.99.128.25
tunnel key 100
tunnel protection ipsec profile cisco
interface vlan 1
description " HWIC-DSL Link"
ip addresss dhcp
ip virtual-reassembly in
duplex auto
speed auto
router rip
version 2
network 172.20.0.0
network 192.168.50.0
no auto-summary
ip route 74.99.128.25 255.255.255.255 192.168.1.1
interface Tunnel102
description " Tunnel BR-HO "
bandwidth 2048
ip address 10.10.0.9 255.255.255.252
tunnel source 172.33.33.18
tunnel destination 172.33.1.18
!
interface FastEthernet0/0
description "BR LAN"
ip address 192.168.50.5 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
bandwidth 2048
ip address 172.33.33.18 255.255.255.252
duplex auto
speed auto
!
router eigrp 200
network 10.10.0.8 0.0.0.3
network 192.168.50.0
no auto-summary
!
router bgp 65350
no synchronization
bgp log-neighbor-changes
neighbor 172.33.33.17 remote-as 65400
no auto-summary
!
