Datasheet

Lab – Configuring a Point-to-Point GRE VPN Tunnel
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172.16.0.0/16 is variably subnetted, 5 subnets, 3 masks
C 172.16.1.0/24 is directly connected, GigabitEthernet0/1
L 172.16.1.1/32 is directly connected, GigabitEthernet0/1
O 172.16.2.0/24 [110/1001] via 172.16.12.2, 00:00:07, Tunnel0
C 172.16.12.0/30 is directly connected, Tunnel0
L 172.16.12.1/32 is directly connected, Tunnel0
What is the exit interface and IP address to reach the 172.16.2.0/24 network?
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The tunnel 0 interface with an IP address of 172.16.12.2 is used to reach 172.16.2.0/24.
b. From the EAST router issue the command to verify the route to 172.16.1.0/24 LAN on the WEST router.
What is the exit interface and IP address to reach the 172.16.1.0/24 network?
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The tunnel 0 interface with an IP address of 172.16.12.1 is used to reach 172.16.1.0/24.
EAST# show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
+ - replicated route, % - next hop override
Gateway of last resort is 10.2.2.2 to network 0.0.0.0
S* 0.0.0.0/0 [1/0] via 10.2.2.2
10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 10.2.2.0/30 is directly connected, Serial0/0/1
L 10.2.2.1/32 is directly connected, Serial0/0/1
172.16.0.0/16 is variably subnetted, 5 subnets, 3 masks
O 172.16.1.0/24 [110/1001] via 172.16.12.1, 00:02:44, Tunnel0
C 172.16.2.0/24 is directly connected, GigabitEthernet0/1
L 172.16.2.1/32 is directly connected, GigabitEthernet0/1
C 172.16.12.0/30 is directly connected, Tunnel0
L 172.16.12.2/32 is directly connected, Tunnel0
Step 3: Verify end-to-end connectivity.
a. Ping from PC-A to PC-C. It should be successful. If not, troubleshoot until you have end-to-end
connectivity.
Note: It may be necessary to disable the PC firewall to ping between PCs.
b. Traceroute from PC-A to PC-C. What is the path from PC-A to PC-C?
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172.16.1.1 > 172.16.12.2 (Tunnel interface on the EAST router) > 172.16.2.3