This is continuous to the Previous Topology. Also i am not going to explain much on the output as its a default behaviour of EIGRP protocol:
R1:
!
interface loopback 0
ip address 1.1.1.1
255.255.255.255
!
router eigrp 100
network 1.1.1.1
network 192.168.0.1
0.0.0.255
no auto-summary
!
R2:
!
interface loopback 0
ip address 2.2.2.2
255.255.255.255
!
router eigrp 100
network 2.2.2.2
network 192.168.0.2
0.0.0.255
no auto-summary
!
R3:
!
interface loopback 0
ip address 3.3.3.3
255.255.255.255
!
router eigrp 100
network 3.3.3.3
network 192.168.0.3
0.0.0.255
no auto-summary
!
OUTPUT:
R1:
R1#show ip eigrp
neighbors
EIGRP-IPv4 Neighbors
for AS(100)
H Address
Interface
Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
1 192.168.0.2
Tu0
13 00:00:19 59 1428 0
3
0 192.168.0.3
Tu0
14 00:00:19 66 1428 0
3
R1#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 not set
1.0.0.0/32
is subnetted, 1 subnets
C
1.1.1.1 is directly connected, Loopback0
2.0.0.0/32
is subnetted, 1 subnets
D
2.2.2.2 [90/27008000] via 192.168.0.2, 00:00:46, Tunnel0
3.0.0.0/32
is subnetted, 1 subnets
D
3.3.3.3 [90/27008000] via 192.168.0.3, 00:00:44, Tunnel0
10.0.0.0/8
is variably subnetted, 2 subnets, 2 masks
C
10.0.0.0/24 is directly connected, GigabitEthernet1/0
L
10.0.0.1/32 is directly connected, GigabitEthernet1/0
192.168.0.0/24
is variably subnetted, 2 subnets, 2 masks
C
192.168.0.0/24 is directly connected, Tunnel0
L
192.168.0.1/32 is directly connected, Tunnel0
R1#
R2: - No routes Available for 3.3.3.3
R2#show ip eigrp
neighbors
EIGRP-IPv4 Neighbors
for AS(100)
H Address
Interface
Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 192.168.0.1
Tu0
10 00:02:34 134 1470 0
5
R2#show ip rou
R2#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 not set
1.0.0.0/32
is subnetted, 1 subnets
D
1.1.1.1 [90/27008000] via 192.168.0.1, 00:02:37, Tunnel0
2.0.0.0/32
is subnetted, 1 subnets
C
2.2.2.2 is directly connected, Loopback0
10.0.0.0/8
is variably subnetted, 2 subnets, 2 masks
C
10.0.0.0/24 is directly connected, GigabitEthernet2/0
L
10.0.0.2/32 is directly connected, GigabitEthernet2/0
192.168.0.0/24
is variably subnetted, 2 subnets, 2 masks
C
192.168.0.0/24 is directly connected, Tunnel0
L
192.168.0.2/32 is directly connected, Tunnel0
R2#
R3:-No Routes Available for 2.2.2.2
R3#show ip eigrp
neighbors
EIGRP-IPv4 Neighbors
for AS(100)
H Address
Interface
Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 192.168.0.1
Tu0
14 00:01:13 1233 5000 0 6
R3#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 not set
1.0.0.0/32
is subnetted, 1 subnets
D
1.1.1.1 [90/27008000] via 192.168.0.1, 00:01:13, Tunnel0
3.0.0.0/32
is subnetted, 1 subnets
C
3.3.3.3 is directly connected, Loopback0
10.0.0.0/8
is variably subnetted, 2 subnets, 2 masks
C
10.0.0.0/24 is directly connected, GigabitEthernet3/0
L
10.0.0.3/32 is directly connected, GigabitEthernet3/0
192.168.0.0/24
is variably subnetted, 2 subnets, 2 masks
C
192.168.0.0/24 is directly connected, Tunnel0
L
192.168.0.3/32 is directly connected, Tunnel0
R3#
R1 Configuration –Special Configuration:
STEP 1:
!
hostname R1
!
interface Tunnel0
no ip split-horizon
eigrp 100
!
OUTPUT:
R2:-Learning Route for the IP 3.3.3.3, But the
next hop is via the HUB router Tunnel IP:
R2#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 not set
1.0.0.0/32
is subnetted, 1 subnets
D
1.1.1.1 [90/27008000] via 192.168.0.1, 00:06:25, Tunnel0
2.0.0.0/32
is subnetted, 1 subnets
C
2.2.2.2 is directly connected, Loopback0
3.0.0.0/32
is subnetted, 1 subnets
D
3.3.3.3 [90/28288000] via 192.168.0.1, 00:02:12, Tunnel0
10.0.0.0/8
is variably subnetted, 2 subnets, 2 masks
C
10.0.0.0/24 is directly connected, GigabitEthernet2/0
L
10.0.0.2/32 is directly connected, GigabitEthernet2/0
192.168.0.0/24
is variably subnetted, 2 subnets, 2 masks
C
192.168.0.0/24 is directly connected, Tunnel0
L
192.168.0.2/32 is directly connected, Tunnel0
R2#traceroute 3.3.3.3 source 2.2.2.2
Type escape sequence to abort.
Tracing the route to 3.3.3.3
VRF info: (vrf in name/id, vrf out name/id)
1 192.168.0.1 56 msec 52 msec 52 msec
2 192.168.0.3 52 msec 56 msec 56 msec
R2#
R3:-Learning Route for the IP 2.2.2.2, But the
next hop is via the HUB router Tunnel IP:
R3#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 not set
1.0.0.0/32
is subnetted, 1 subnets
D
1.1.1.1 [90/27008000] via 192.168.0.1, 00:04:37, Tunnel0
2.0.0.0/32
is subnetted, 1 subnets
D
2.2.2.2 [90/28288000] via 192.168.0.1, 00:00:29, Tunnel0
3.0.0.0/32
is subnetted, 1 subnets
C
3.3.3.3 is directly connected, Loopback0
10.0.0.0/8
is variably subnetted, 2 subnets, 2 masks
C
10.0.0.0/24 is directly connected, GigabitEthernet3/0
L
10.0.0.3/32 is directly connected, GigabitEthernet3/0
192.168.0.0/24
is variably subnetted, 2 subnets, 2 masks
C
192.168.0.0/24 is directly connected, Tunnel0
L
192.168.0.3/32 is directly connected, Tunnel0
R3#
Step 2:
!
hostname R1
!
interface Tunnel0
no ip next-hop-self
eigrp 100
!
OUTPUT:
R2:
R2#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 not set
1.0.0.0/32
is subnetted, 1 subnets
D
1.1.1.1 [90/27008000] via 192.168.0.1, 00:00:34, Tunnel0
2.0.0.0/32
is subnetted, 1 subnets
C
2.2.2.2 is directly connected, Loopback0
3.0.0.0/32
is subnetted, 1 subnets
D
3.3.3.3 [90/28288000] via 192.168.0.3, 00:00:34, Tunnel0
10.0.0.0/8
is variably subnetted, 2 subnets, 2 masks
C
10.0.0.0/24 is directly connected, GigabitEthernet2/0
L
10.0.0.2/32 is directly connected, GigabitEthernet2/0
192.168.0.0/24
is variably subnetted, 2 subnets, 2 masks
C
192.168.0.0/24 is directly connected, Tunnel0
L
192.168.0.2/32 is directly connected, Tunnel0
R2#traceroute 3.3.3.3 source 2.2.2.2
Type escape sequence to abort.
Tracing the route to 3.3.3.3
VRF info: (vrf in name/id, vrf out name/id)
1 192.168.0.3 36 msec 52 msec 48 msec
R2#
R3:
R3#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 not set
1.0.0.0/32
is subnetted, 1 subnets
D
1.1.1.1 [90/27008000] via 192.168.0.1, 00:00:57, Tunnel0
2.0.0.0/32
is subnetted, 1 subnets
D
2.2.2.2 [90/28288000] via 192.168.0.2, 00:00:56, Tunnel0
3.0.0.0/32
is subnetted, 1 subnets
C
3.3.3.3 is directly connected, Loopback0
10.0.0.0/8
is variably subnetted, 2 subnets, 2 masks
C
10.0.0.0/24 is directly connected, GigabitEthernet3/0
L
10.0.0.3/32 is directly connected, GigabitEthernet3/0
192.168.0.0/24
is variably subnetted, 2 subnets, 2 masks
C
192.168.0.0/24 is directly connected, Tunnel0
L
192.168.0.3/32 is directly connected, Tunnel0
R3#
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