My Countingdown

Showing posts with label EIGRP. Show all posts
Showing posts with label EIGRP. Show all posts

Tuesday, December 13, 2011

Lab 9. Filtering - AD



R1#
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Loopback1
ip address 100.100.100.1 255.255.255.255
!
interface Loopback2
ip address 200.200.200.1 255.255.255.255
!
interface Loopback3
ip address 30.30.30.1 255.255.255.255
!
interface Serial0/0
ip address 12.12.12.1 255.255.255.0
!
router eigrp 10
network 1.1.1.1 0.0.0.0
network 12.12.12.1 0.0.0.0
no auto-summary
!
router ospf 1
log-adjacency-changes
network 30.30.30.1 0.0.0.0 area 0
!
router rip
version 2
network 200.200.200.0

R2#
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.2 255.255.255.0
!
interface Serial0/0
ip address 12.12.12.2 255.255.255.0
!
router eigrp 10
network 2.2.2.2 0.0.0.0
network 12.12.12.2 0.0.0.0
network 23.23.23.2 0.0.0.0
no auto-summary

R3#
interface Loopback0
ip address 3.3.3.3 255.255.255.255
!
interface Loopback1
ip address 10.0.0.1 255.255.255.255
!
interface Loopback2
ip address 10.0.0.2 255.255.255.255
!
interface Loopback3
ip address 10.0.0.3 255.255.255.255
!
interface Loopback4
ip address 10.0.0.4 255.255.255.255
!
interface Loopback5
ip address 10.0.0.5 255.255.255.255
!
interface Loopback6
ip address 10.0.0.6 255.255.255.255
!
interface Loopback7
ip address 10.0.0.7 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.3 255.255.255.0
!
router eigrp 10
network 3.3.3.3 0.0.0.0
network 10.0.0.1 0.0.0.0
network 10.0.0.2 0.0.0.0
network 10.0.0.3 0.0.0.0
network 10.0.0.4 0.0.0.0
network 10.0.0.5 0.0.0.0
network 10.0.0.6 0.0.0.0
network 10.0.0.7 0.0.0.0
network 23.23.23.3 0.0.0.0
no auto-summary

We can also filter specific IP using filtering AD. Let say we want IP Loopback 1.1.1.1 is not in the routing table R3.

R3(config-if)#do sh ip rou | i 1.1.1.1
D 1.1.1.1 [90/2323456] via 23.23.23.2, 00:02:50, FastEthernet0/0

R3(config-if)#access 2 permit 1.1.1.1
R3(config)#router eigrp 10
R3(config-router)#distanc 255 0.0.0.0 255.255.255.255 2

R3(config-router)#do sh ip route 1.1.1.1
% Network not in table

R3(config-router)#do ping 1.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)

Lab 8. EIGRP - Unicast Update




R1#
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Loopback1
ip address 100.100.100.1 255.255.255.255
!
interface Loopback2
ip address 200.200.200.1 255.255.255.255
!
interface Loopback3
ip address 30.30.30.1 255.255.255.255
!
interface Serial0/0
ip address 12.12.12.1 255.255.255.0
!
router eigrp 10
network 1.1.1.1 0.0.0.0
network 12.12.12.1 0.0.0.0
no auto-summary
!
router ospf 1
log-adjacency-changes
network 30.30.30.1 0.0.0.0 area 0
!
router rip
version 2
network 200.200.200.0

R2#
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.2 255.255.255.0
!
interface Serial0/0
ip address 12.12.12.2 255.255.255.0
!
router eigrp 10
network 2.2.2.2 0.0.0.0
network 12.12.12.2 0.0.0.0
network 23.23.23.2 0.0.0.0
no auto-summary

R3#
interface Loopback0
ip address 3.3.3.3 255.255.255.255
!
interface Loopback1
ip address 10.0.0.1 255.255.255.255
!
interface Loopback2
ip address 10.0.0.2 255.255.255.255
!
interface Loopback3
ip address 10.0.0.3 255.255.255.255
!
interface Loopback4
ip address 10.0.0.4 255.255.255.255
!
interface Loopback5
ip address 10.0.0.5 255.255.255.255
!
interface Loopback6
ip address 10.0.0.6 255.255.255.255
!
interface Loopback7
ip address 10.0.0.7 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.3 255.255.255.0
!
router eigrp 10
network 3.3.3.3 0.0.0.0
network 10.0.0.1 0.0.0.0
network 10.0.0.2 0.0.0.0
network 10.0.0.3 0.0.0.0
network 10.0.0.4 0.0.0.0
network 10.0.0.5 0.0.0.0
network 10.0.0.6 0.0.0.0
network 10.0.0.7 0.0.0.0
network 23.23.23.3 0.0.0.0
no auto-summary

By default EIGRP, update using multicast 224.0.0.10

R1(config-if)#do debu ip packet deta
IP packet debugging is on (detailed)
R1(config-if)#
*Mar 1 00:58:50.535: IP: s=1.1.1.1 (local), d=224.0.0.10 (Loopback0), len 60, sending broad/multicast, proto=88
*Mar 1 00:58:50.539: IP: s=1.1.1.1 (Loopback0), d=224.0.0.10, len 60, rcvd 2, proto=88
*Mar 1 00:58:51.203: IP: s=12.12.12.2 (Serial0/0), d=224.0.0.10, len 100, rcvd 2, proto=88

We can change the multicast into unicast using ‘neighbor command’.

R1(config-if)#router eigrp 10
R1(config-router)#nei 12.12.12.2 s0/0

R2(config-if)#router eigrp 10
R2(config-router)#nei 12.12.12.1 s0/0

R1(config-router)#do debu ip packet deta
*Mar 1 01:01:14.051: IP: s=12.12.12.1 (local), d=12.12.12.2 (Serial0/0), len 100, sending, proto=88
*Mar 1 01:01:14.171: IP: tableid=0, s=12.12.12.2 (Serial0/0), d=12.12.12.1 (Serial0/0), routed via RIB
*Mar 1 01:01:14.171: IP: s=12.12.12.2 (Serial0/0), d=12.12.12.1 (Serial0/0), len 100, rcvd 3, proto=88

Lab 7. EIGRP - Summary Address




R1#
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Loopback1
ip address 100.100.100.1 255.255.255.255
!
interface Loopback2
ip address 200.200.200.1 255.255.255.255
!
interface Loopback3
ip address 30.30.30.1 255.255.255.255
!
interface Serial0/0
ip address 12.12.12.1 255.255.255.0
!
router eigrp 10
network 1.1.1.1 0.0.0.0
network 12.12.12.1 0.0.0.0
no auto-summary
!
router ospf 1
log-adjacency-changes
network 30.30.30.1 0.0.0.0 area 0
!
router rip
version 2
network 200.200.200.0

R2#
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.2 255.255.255.0
!
interface Serial0/0
ip address 12.12.12.2 255.255.255.0
!
router eigrp 10
network 2.2.2.2 0.0.0.0
network 12.12.12.2 0.0.0.0
network 23.23.23.2 0.0.0.0
no auto-summary

R3#
interface Loopback0
ip address 3.3.3.3 255.255.255.255
!
interface Loopback1
ip address 10.0.0.1 255.255.255.255
!
interface Loopback2
ip address 10.0.0.2 255.255.255.255
!
interface Loopback3
ip address 10.0.0.3 255.255.255.255
!
interface Loopback4
ip address 10.0.0.4 255.255.255.255
!
interface Loopback5
ip address 10.0.0.5 255.255.255.255
!
interface Loopback6
ip address 10.0.0.6 255.255.255.255
!
interface Loopback7
ip address 10.0.0.7 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.3 255.255.255.0
!
router eigrp 10
network 3.3.3.3 0.0.0.0
network 10.0.0.1 0.0.0.0
network 10.0.0.2 0.0.0.0
network 10.0.0.3 0.0.0.0
network 10.0.0.4 0.0.0.0
network 10.0.0.5 0.0.0.0
network 10.0.0.6 0.0.0.0
network 10.0.0.7 0.0.0.0
network 23.23.23.3 0.0.0.0
no auto-summary

Then in R3, we can do summarization to decrease routing database

R3(config-if)#do sh ip route conne
  3.0.0.0/32 is subnetted, 1 subnets
C    3.3.3.3 is directly connected, Loopback0
  23.0.0.0/24 is subnetted, 1 subnets
C    23.23.23.0 is directly connected, FastEthernet0/0
  10.0.0.0/32 is subnetted, 7 subnets
C    10.0.0.2 is directly connected, Loopback2
C    10.0.0.3 is directly connected, Loopback3
C    10.0.0.1 is directly connected, Loopback1
C    10.0.0.6 is directly connected, Loopback6
C    10.0.0.7 is directly connected, Loopback7
C    10.0.0.4 is directly connected, Loopback4
C    10.0.0.5 is directly connected, Loopback5

R1(config-if)#do sh ip rou
Codes: 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

Gateway of last resort is not set

  200.200.200.0/32 is subnetted, 1 subnets
C    200.200.200.1 is directly connected, Loopback2
  1.0.0.0/32 is subnetted, 1 subnets
C    1.1.1.1 is directly connected, Loopback0
  100.0.0.0/32 is subnetted, 1 subnets
C    100.100.100.1 is directly connected, Loopback1
  3.0.0.0/32 is subnetted, 1 subnets
D    3.3.3.3 [90/2323456] via 12.12.12.2, 00:06:21, Serial0/0
  23.0.0.0/24 is subnetted, 1 subnets
D    23.23.23.0 [90/2195456] via 12.12.12.2, 00:06:21, Serial0/0
  10.0.0.0/32 is subnetted, 7 subnets
D    10.0.0.2 [90/2323456] via 12.12.12.2, 00:06:23, Serial0/0
D    10.0.0.3 [90/2323456] via 12.12.12.2, 00:06:23, Serial0/0
D    10.0.0.1 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0
D    10.0.0.6 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0
D    10.0.0.7 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0
D    10.0.0.4 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0
D    10.0.0.5 [90/2323456] via 12.12.12.2, 00:06:25, Serial0/0
  12.0.0.0/24 is subnetted, 1 subnets
C    12.12.12.0 is directly connected, Serial0/0
  30.0.0.0/32 is subnetted, 1 subnets
C    30.30.30.1 is directly connected, Loopback3

We can make summary address in EIGRP.

R3(config-router)#int f0/0
R3(config-if)#ip summary-address eigrp 10 10.0.0.0 255.255.255.248

Check routing in R1 that advertize in EIGRP

R1(config-if)#do sh ip rou
Codes: 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

Gateway of last resort is not set

  200.200.200.0/32 is subnetted, 1 subnets
C    200.200.200.1 is directly connected, Loopback2
  1.0.0.0/32 is subnetted, 1 subnets
C    1.1.1.1 is directly connected, Loopback0
  100.0.0.0/32 is subnetted, 1 subnets
C    100.100.100.1 is directly connected, Loopback1
  3.0.0.0/32 is subnetted, 1 subnets
D    3.3.3.3 [90/2323456] via 12.12.12.2, 00:08:40, Serial0/0
  23.0.0.0/24 is subnetted, 1 subnets
D    23.23.23.0 [90/2195456] via 12.12.12.2, 00:08:40, Serial0/0
  10.0.0.0/29 is subnetted, 1 subnets
D    10.0.0.0 [90/2323456] via 12.12.12.2, 00:00:49, Serial0/0
  12.0.0.0/24 is subnetted, 1 subnets
C    12.12.12.0 is directly connected, Serial0/0
  30.0.0.0/32 is subnetted, 1 subnets
C    30.30.30.1 is directly connected, Loopback3

R1(config-if)#do ping 10.0.0.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/40/76 ms

R1(config-if)#do ping 10.0.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/44/68 ms

R1(config-if)#do ping 10.0.0.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/46/80 ms

Lab 6. EIGRP - Authentication



R1#
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Loopback1
ip address 100.100.100.1 255.255.255.255
!
interface Loopback2
ip address 200.200.200.1 255.255.255.255
!
interface Loopback3
ip address 30.30.30.1 255.255.255.255
!
interface Serial0/0
ip address 12.12.12.1 255.255.255.0
!
router eigrp 10
network 1.1.1.1 0.0.0.0
network 12.12.12.1 0.0.0.0
no auto-summary
!
router ospf 1
log-adjacency-changes
network 30.30.30.1 0.0.0.0 area 0
!
router rip
version 2
network 200.200.200.0

R2#
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.2 255.255.255.0
!
interface Serial0/0
ip address 12.12.12.2 255.255.255.0
!
router eigrp 10
network 2.2.2.2 0.0.0.0
network 12.12.12.2 0.0.0.0
network 23.23.23.2 0.0.0.0
no auto-summary

R3#
interface Loopback0
ip address 3.3.3.3 255.255.255.255
!
interface Loopback1
ip address 10.0.0.1 255.255.255.255
!
interface Loopback2
ip address 10.0.0.2 255.255.255.255
!
interface Loopback3
ip address 10.0.0.3 255.255.255.255
!
interface Loopback4
ip address 10.0.0.4 255.255.255.255
!
interface Loopback5
ip address 10.0.0.5 255.255.255.255
!
interface Loopback6
ip address 10.0.0.6 255.255.255.255
!
interface Loopback7
ip address 10.0.0.7 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.3 255.255.255.0
!
router eigrp 10
network 3.3.3.3 0.0.0.0
network 10.0.0.1 0.0.0.0
network 10.0.0.2 0.0.0.0
network 10.0.0.3 0.0.0.0
network 10.0.0.4 0.0.0.0
network 10.0.0.5 0.0.0.0
network 10.0.0.6 0.0.0.0
network 10.0.0.7 0.0.0.0
network 23.23.23.3 0.0.0.0
no auto-summary


In EIGRP, authentication only using MD5

R1(config-router)#key chain EIGRP
R1(config-keychain)# key 1
R1(config-keychain-key)# key-string CISCO
R1(config)#int s0/0
R1(config)#ip authenti key-ch eigrp 10 EIGRP
R1(config-if)#ip authen mode eigrp 10 md5

R2(config-router)#key chain EIGRP
R2(config-keychain)# key 1
R2(config-keychain-key)# key-string CISCO
R2(config)#int s0/0
R2(config)#ip authenti key-ch eigrp 10 EIGRP
R2(config-if)#ip authen mode eigrp 10 md5

Check debug EIGRP packet to see authentication

R1(config-if)#do de eigrp packe
EIGRP Packets debugging is on
(UPDATE, REQUEST, QUERY, REPLY, HELLO, IPXSAP, PROBE, ACK, STUB, SIAQUERY, SIAREPLY)
*Mar 1 00:50:10.691: EIGRP: received packet with MD5 authentication, key id = 1
*Mar 1 00:50:10.695: EIGRP: Received HELLO on Serial0/0 nbr 12.12.12.2
*Mar 1 00:50:10.695: AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0

Lab 5. EIGRP - Redistribute OSPF



R1#
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Loopback1
ip address 100.100.100.1 255.255.255.255
!
interface Loopback2
ip address 200.200.200.1 255.255.255.255
!
interface Loopback3
ip address 30.30.30.1 255.255.255.255
!
interface Serial0/0
ip address 12.12.12.1 255.255.255.0
!
router eigrp 10
network 1.1.1.1 0.0.0.0
network 12.12.12.1 0.0.0.0
no auto-summary
!
router ospf 1
log-adjacency-changes
network 30.30.30.1 0.0.0.0 area 0
!
router rip
version 2
network 200.200.200.0

R2#
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.2 255.255.255.0
!
interface Serial0/0
ip address 12.12.12.2 255.255.255.0
!
router eigrp 10
network 2.2.2.2 0.0.0.0
network 12.12.12.2 0.0.0.0
network 23.23.23.2 0.0.0.0
no auto-summary

R3#
interface Loopback0
ip address 3.3.3.3 255.255.255.255
!
interface Loopback1
ip address 10.0.0.1 255.255.255.255
!
interface Loopback2
ip address 10.0.0.2 255.255.255.255
!
interface Loopback3
ip address 10.0.0.3 255.255.255.255
!
interface Loopback4
ip address 10.0.0.4 255.255.255.255
!
interface Loopback5
ip address 10.0.0.5 255.255.255.255
!
interface Loopback6
ip address 10.0.0.6 255.255.255.255
!
interface Loopback7
ip address 10.0.0.7 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.3 255.255.255.0
!
router eigrp 10
network 3.3.3.3 0.0.0.0
network 10.0.0.1 0.0.0.0
network 10.0.0.2 0.0.0.0
network 10.0.0.3 0.0.0.0
network 10.0.0.4 0.0.0.0
network 10.0.0.5 0.0.0.0
network 10.0.0.6 0.0.0.0
network 10.0.0.7 0.0.0.0
network 23.23.23.3 0.0.0.0
no auto-summary

Then we’d like to redistribute OSPF into EIGRP

R1(config)#router eigrp 10
R1(config-router)#redis ospf 1 metr 1 1 1 1 1

Check the routing table

R1(config-router)#do sh ip pro
Routing Protocol is "eigrp 10"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Serial0/0 filtered by 1, default is 1
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 10, ospf 1, rip
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is not in effect

R1(config-router)#do sh run | sec router ospf
router ospf 1
log-adjacency-changes
network 30.30.30.1 0.0.0.0 area 0

R3(config-if)#do sh ip route eigrp
  200.200.200.0/32 is subnetted, 1 subnets
D EX 200.200.200.1 [170/2560537856] via 23.23.23.2, 00:05:36, FastEthernet0/0
  1.0.0.0/32 is subnetted, 1 subnets
D       1.1.1.1 [90/2323456] via 23.23.23.2, 00:36:02, FastEthernet0/0
  2.0.0.0/32 is subnetted, 1 subnets
D       2.2.2.2 [90/409600] via 23.23.23.2, 00:36:02, FastEthernet0/0
  100.0.0.0/32 is subnetted, 1 subnets
D EX 100.100.100.1 [170/2195456] via 23.23.23.2, 00:09:36, FastEthernet0/0
  12.0.0.0/24 is subnetted, 1 subnets
D       12.12.12.0 [90/2195456] via 23.23.23.2, 00:36:02, FastEthernet0/0
  30.0.0.0/32 is subnetted, 1 subnets
D EX 30.30.30.1 [170/2560537856] via 23.23.23.2, 00:02:13, FastEthernet0/0

R3(config-if)#do ping 30.30.30.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 30.30.30.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 20/39/60 ms

Lab 4. EIGRP - Redistribute RIP




R1#
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Loopback1
ip address 100.100.100.1 255.255.255.255
!
interface Loopback2
ip address 200.200.200.1 255.255.255.255
!
interface Loopback3
ip address 30.30.30.1 255.255.255.255
!
interface Serial0/0
ip address 12.12.12.1 255.255.255.0
!
router eigrp 10
network 1.1.1.1 0.0.0.0
network 12.12.12.1 0.0.0.0
no auto-summary
!
router ospf 1
log-adjacency-changes
network 30.30.30.1 0.0.0.0 area 0
!
router rip
version 2
network 200.200.200.0

R2#
interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.2 255.255.255.0
!
interface Serial0/0
ip address 12.12.12.2 255.255.255.0
!
router eigrp 10
network 2.2.2.2 0.0.0.0
network 12.12.12.2 0.0.0.0
network 23.23.23.2 0.0.0.0
no auto-summary

R3#
interface Loopback0
ip address 3.3.3.3 255.255.255.255
!
interface Loopback1
ip address 10.0.0.1 255.255.255.255
!
interface Loopback2
ip address 10.0.0.2 255.255.255.255
!
interface Loopback3
ip address 10.0.0.3 255.255.255.255
!
interface Loopback4
ip address 10.0.0.4 255.255.255.255
!
interface Loopback5
ip address 10.0.0.5 255.255.255.255
!
interface Loopback6
ip address 10.0.0.6 255.255.255.255
!
interface Loopback7
ip address 10.0.0.7 255.255.255.255
!
interface FastEthernet0/0
ip address 23.23.23.3 255.255.255.0
!
router eigrp 10
network 3.3.3.3 0.0.0.0
network 10.0.0.1 0.0.0.0
network 10.0.0.2 0.0.0.0
network 10.0.0.3 0.0.0.0
network 10.0.0.4 0.0.0.0
network 10.0.0.5 0.0.0.0
network 10.0.0.6 0.0.0.0
network 10.0.0.7 0.0.0.0
network 23.23.23.3 0.0.0.0
no auto-summary

We want IP 200.200.200.1 in R1 that already advertize using RIP can be accessed using EIGRP

R1(config)#router eigrp 10
R1(config-router)#redis rip metric 1 1 1 1 1
R1(config-router)#
R1(config-router)#
R1(config-router)#do sh ip pro
Routing Protocol is "eigrp 10"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Serial0/0 filtered by 1, default is 1
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
EIGRP maximum hopcount 100
EIGRP maximum metric variance 1
Redistributing: eigrp 10, rip
EIGRP NSF-aware route hold timer is 240s
Automatic network summarization is not in effect
Maximum path: 4
Routing for Networks:
1.1.1.1/32
12.12.12.1/32

R3(config-if)#do sh ip route eigrp
  200.200.200.0/32 is subnetted, 1 subnets
D EX 200.200.200.1 [170/2560537856] via 23.23.23.2, 00:01:09, FastEthernet0/0
  1.0.0.0/32 is subnetted, 1 subnets
D      1.1.1.1 [90/2323456] via 23.23.23.2, 00:31:34, FastEthernet0/0
  2.0.0.0/32 is subnetted, 1 subnets
D       2.2.2.2 [90/409600] via 23.23.23.2, 00:31:34, FastEthernet0/0
  100.0.0.0/32 is subnetted, 1 subnets
D EX 100.100.100.1 [170/2195456] via 23.23.23.2, 00:05:09, FastEthernet0/0
  12.0.0.0/24 is subnetted, 1 subnets
D       12.12.12.0 [90/2195456] via 23.23.23.2, 00:31:34, FastEthernet0/0

R3(config-if)#do ping 200.200.200.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 200.200.200.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/51/76 ms