4.1.d Implement and troubleshoot DMVPN [single hub]

this one covers a lot of blueprint ground.

2.3b, 4.1c, 4.1d

mlppp

continuing with the earlier mlppp topology, i added dmvpn.

interface Multilink1
ip address 100.1.10.100 255.255.255.0
ip nbar protocol-discovery
ppp authentication chap
ppp multilink
ppp multilink group 1

hub#sh run int tun 0 | b inter
interface Tunnel0
ip address 10.1.1.1 255.255.255.0
no ip redirects
ip mtu 1400
ip hold-time eigrp 1 60
no ip next-hop-self eigrp 1
ip nhrp map multicast dynamic
ip nhrp network-id 1
no ip split-horizon eigrp 1
tunnel source 100.1.10.100
tunnel mode gre multipoint

hub#sh ip eigrp neigh
IP-EIGRP neighbors for process 1
H   Address                 Interface       Hold Uptime   SRTT   RTO  Q  Seq
(sec)         (ms)       Cnt Num
1   10.1.1.3                Tu0               11 00:54:30  143  5000  0  2
0   10.1.1.2                Tu0               59 00:54:34  195  5000  0  4

hub#sh ip route eigrp
2.0.0.0/24 is subnetted, 1 subnets
D       2.2.2.0 [90/297372416] via 10.1.1.2, 00:55:01, Tunnel0
100.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
D       100.1.1.10/32 [90/297756416] via 10.1.1.2, 00:55:01, Tunnel0
D       100.1.1.20/32 [90/297756416] via 10.1.1.3, 00:54:55, Tunnel0
3.0.0.0/24 is subnetted, 1 subnets
D       3.3.3.0 [90/297372416] via 10.1.1.3, 00:54:55, Tunnel0

the two spoke tunnel configs:

spoke1#sh run int tun 0 | b inter
interface Tunnel0
ip address 10.1.1.2 255.255.255.0
no ip redirects
ip mtu 1416
ip hold-time eigrp 1 60
no ip next-hop-self eigrp 1
ip nhrp map 10.1.1.1 100.1.10.100
ip nhrp map multicast 100.1.10.100
ip nhrp network-id 1
ip nhrp nhs 10.1.1.1
no ip split-horizon eigrp 1
tunnel source 100.1.20.2
tunnel mode gre multipoint

spoke2#sh run int tun 0 | b inter
interface Tunnel0
ip address 10.1.1.3 255.255.255.0
no ip redirects
ip mtu 1400
ip nhrp map multicast dynamic
ip nhrp map 10.1.1.1 100.1.10.100
ip nhrp map multicast 100.1.10.100
ip nhrp network-id 1
ip nhrp nhs 10.1.1.1
tunnel source 100.1.30.2
tunnel mode gre multipoint

spoke2#trace 10.1.1.2

Type escape sequence to abort.
Tracing the route to 10.1.1.2

1 10.1.1.2 76 msec *  48 msec

spoke1#sh ip route | b Gate
Gateway of last resort is 100.1.20.1 to network 0.0.0.0

1.0.0.0/24 is subnetted, 1 subnets
D       1.1.1.0 [90/297372416] via 10.1.1.1, 01:05:56, Tunnel0
2.0.0.0/24 is subnetted, 1 subnets
C       2.2.2.0 is directly connected, Loopback0
100.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
S       100.1.10.100/32 [1/0] via 100.1.20.1
D       100.1.1.1/32 [90/299804416] via 10.1.1.1, 01:05:56, Tunnel0
C       100.1.1.10/32 is directly connected, Serial1/0
D       100.1.10.0/24 [90/299804416] via 10.1.1.1, 01:05:56, Tunnel0
D       100.1.1.20/32 [90/310556416] via 10.1.1.3, 01:05:51, Tunnel0
C       100.1.20.0/24 is directly connected, Serial1/0
3.0.0.0/24 is subnetted, 1 subnets
D       3.3.3.0 [90/310172416] via 10.1.1.3, 01:05:51, Tunnel0
10.0.0.0/24 is subnetted, 1 subnets
C       10.1.1.0 is directly connected, Tunnel0
S*   0.0.0.0/0 [1/0] via 100.1.20.1