Question 3 of 56 from exam 300-730-SVPN: Implementing Secure Solutions with Virtual Private Networks

Question 3 of 56 from exam 300-730-SVPN: Implementing Secure Solutions with Virtual Private Networks

Question

HUB#show ip nhrp
10.0.0.2/32 via 10.0.0.2
Tunnel0 created 00:02:09, expire 00:00:01
Type: dynamic, Flags: unique registered used nhop
NBMA address: 2.2.2.1

10.0.0.3/32 via 10.0.0.3
Tunnel0 created 00:13:25, 01:46:34
Type: dynamic, Flags: unique registered used nhop
NBMA address: 3.3.3.1

Refer to the exhibit.

The DMVPN tunnel is dropping randomly and no tunnel protection is configured.

Which spoke configuration mitigates tunnel drops? A.

interface Tunnel0
ip address 10.0.0.2 255.255.255.0
no ip redirects

ip nhrp map 10.0.0.1 1.1.1.1

ip nhrp map multicast 1.1.1.1

ip nhrp network-id 1

ip nhrp holdtime 20

ip nhrp nhs 10.0.0.1

ip nhrp registration timeout 120
ip nhrp shortcut

tunnel source GigabitEthernet0/1
tunnel mode gre multipoint

end

B.

interface Tunnel0
ip address 10.0.0.2 255.255.255.0
no ip redirects

ip nhrp map 10.0.0.1 1.1.1.1

ip nhrp map multicast 1.1.1.1

ip nhrp network-id 1

ip nhrp holdtime 120

ip nhrp nhs 10.0.0.1

ip nhrp registration timeout 120
ip nhrp shortcut

tunnel source GigabitEthernet0/1
tunnel mode gre multipoint

end

C.

interface Tunnel0
ip address 10.0.0.2 255.255.255.0
no ip redirects

ip nhrp map 10.0.0.1 1.1.1.1

ip nhrp map multicast 1.1.1.1

ip nhrp network-id 1

ip nhrp holdtime 120

ip nhrp nhs 10.0.0.1

ip nhrp registration timeout 20
ip nhrp shortcut

tunnel source GigabitEthernet0/1
tunnel mode gre multipoint

end

D.

interface Tunnel0
ip address 10.0.0.2 255.255.255.0
no ip redirects

ip nhrp map 10.0.0.1 1.1.1.1

ip nhrp map multicast 1.1.1.1

ip nhrp network-id 1

ip nhrp holdtime 120

ip nhrp nhs 10.0.0.1

ip nhrp registration timeout 150
ip nhrp shortcut

tunnel source GigabitEthernet0/1
tunnel mode gre multipoint

end

Explanations

D.