RouterB#show ip      w run Building configuration... Current configuration : 686 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname RouterB ! boot-start-marker boot-end-marker ! enable password cisco ! no aaa new-model ip subnet-zero ip cef ! ! ! ! ! --More--  ! ! interface Loopback0 ip address 2.2.2.2 255.255.255.0 ! interface Ethernet0/0 no ip address shutdown half-duplex ! interface Serial0/0 ip address 150.1.1.3 255.255.255.0 ! router ospf 300 log-adjacency-changes area 1 stub network 150.1.1.0 0.0.0.255 area 1 ! no ip http server ip classless ip route 193.10.1.0 255.255.255.0 150.1.1.2 ! ! --More--  ! line con 0 password cisco line aux 0 line vty 0 4 password cisco login ! ! end RouterB#show op route        ip route 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 150.1.1.2 to network 0.0.0.0 1.0.0.0/32 is subnetted, 1 subnets O IA 1.1.1.1 [110/65] via 150.1.1.2, 00:13:05, Serial0/0 2.0.0.0/24 is subnetted, 1 subnets C 2.2.2.0 is directly connected, Loopback0 S 193.10.1.0/24 [1/0] via 150.1.1.2 150.1.0.0/24 is subnetted, 1 subnets C 150.1.1.0 is directly connected, Serial0/0 O*IA 0.0.0.0/0 [110/65] via 150.1.1.2, 00:13:05, Serial0/0 RouterB#ping 193.10.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 193.10.1.1, timeout is 2 seconds: ..... Success rate is 0 percent (0/5) RouterB#ping 150.1.1.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 150.1.1.2, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/30/32 ms RouterB#telnet 150.1.1.2 Trying 150.1.1.2 ... Open User Access Verification Password: RouterA>en Password: RouterA#show run Building configuration... Current configuration : 1087 bytes ! version 12.3 service config service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname RouterA ! boot-start-marker boot-end-marker ! enable password cisco ! no aaa new-model ip subnet-zero ip cef ! ! ! ! --More--  ! ! ! interface Loopback0 ip address 1.1.1.1 255.255.255.0 ! interface Loopback2 ip address 9.9.9.9 255.255.255.0 ! interface Ethernet0/0 no ip address shutdown half-duplex no cdp enable ! interface Serial0/0 ip address 150.1.1.2 255.255.255.0 clockrate 64000 no fair-queue no cdp enable ! interface Serial0/1 ip address 193.10.1.2 255.255.255.0 --More--   clockrate 64000 no cdp enable ! router eigrp 100 network 9.9.9.0 0.0.0.255 network 193.10.1.0 no auto-summary ! router ospf 64 log-adjacency-changes area 1 stub redistribute connected subnets redistribute eigrp 100 network 1.1.1.0 0.0.0.255 area 0 network 150.1.1.0 0.0.0.255 area 1 default-metric 100000 ! ip http server ip classless ! ! no cdp run ! --More--  line con 0 exec-timeout 0 0 password cisco line aux 0 line vty 0 4 password cisco login ! ! end RouterA#show ip route 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 1.0.0.0/24 is subnetted, 1 subnets C 1.1.1.0 is directly connected, Loopback0 9.0.0.0/24 is subnetted, 1 subnets C 9.9.9.0 is directly connected, Loopback2 C 193.10.1.0/24 is directly connected, Serial0/1 150.1.0.0/24 is subnetted, 1 subnets C 150.1.1.0 is directly connected, Serial0/0 RouterA#ping 193.10.1.1.  Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 193.10.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/29/32 ms RouterA#telnet 193.10.1.1.  Trying 193.10.1.1 ... Open User Access Verification Password: RouterC>en Password: RouterC#show run Building configuration... Current configuration : 740 bytes ! version 12.3 service config service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname RouterC ! boot-start-marker boot-end-marker ! enable secret 5 $1$e6Qs$/y/ABeOKVpqL0syqqkiKc1 ! no aaa new-model ip subnet-zero ip cef ! ! ! ! --More--  ! ! ! interface Loopback0 ip address 3.3.3.3 255.255.255.0 ! interface Ethernet0/0 no ip address half-duplex no keepalive no cdp enable ! interface Serial0/0 ip address 193.10.1.1 255.255.255.0 no fair-queue no cdp enable ! router eigrp 100 network 193.10.1.0 no auto-summary ! ip http server ip classless --More--  ! ! no cdp run ! line con 0 exec-timeout 0 0 password cisco line aux 0 password cisco line vty 0 4 password cisco login ! ! end RouterC#show ip route 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 3.0.0.0/24 is subnetted, 1 subnets C 3.3.3.0 is directly connected, Loopback0 9.0.0.0/24 is subnetted, 1 subnets D 9.9.9.0 [90/2297856] via 193.10.1.2, 01:02:10, Serial0/0 C 193.10.1.0/24 is directly connected, Serial0/0 RouterC#