R1 Configuration:
!
!
interface Loopback0
ip address 192.168.1.1 255.255.255.255
!
interface Ethernet0/0
ip address 192.168.12.1 255.255.255.0
half-duplex
!
ip route 192.168.0.0 255.255.0.0 192.168.12.2
!
!
R2 Configuration:
!
!
interface Ethernet0/0
ip address 192.168.12.2 255.255.255.0
half-duplex
!
interface Ethernet0/2
ip address 192.168.23.2 255.255.255.0
half-duplex
!
interface Ethernet0/3
ip address 192.168.24.2 255.255.255.0
half-duplex
!
!
ip route 192.168.1.1 255.255.255.255 192.168.12.1
ip route 192.168.3.3 255.255.255.255 192.168.23.3
ip route 192.168.4.4 255.255.255.255 192.168.24.4
!
!
R3 Configuration:
!
!
interface Loopback0
ip address 192.168.3.3 255.255.255.255
!
!
interface Ethernet0/2
ip address 192.168.23.3 255.255.255.0
half-duplex
!
!
ip route 192.168.0.0 255.255.0.0 192.168.23.2
!
!
R4 Configuration:
!
!
interface Loopback0
ip address 192.168.4.4 255.255.255.255
!
interface Ethernet0/3
ip address 192.168.24.4 255.255.255.0
half-duplex
!
!
ip route 192.168.0.0 255.255.0.0 192.168.24.2
!
!
---------------
Inspect:(R1):
r1#
r1#
r1#ping 192.168.4.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.4.4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/86/196 ms
r1#
r1#ping 192.168.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 60/107/168 ms
r1#
Inspect:(R2):
r2#
r2#
r2#ping 192.168.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 24/70/120 ms
r2#
r2#ping 192.168.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 20/58/132 ms
r2#
r2#ping 192.168.4.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.4.4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 20/57/124 ms
r2#
Inspect:(R3):
r3#
r3#
r3#ping 192.168.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 36/98/172 ms
r3#
r3#ping 192.168.4.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.4.4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 36/85/176 ms
r3#
r3#
Inspect:(R4):
r4#
r4#
r4#ping 192.168.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/84/156 ms
r4#
r4#ping 192.168.3.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.3.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 36/87/160 ms
r4#
责任编辑：小草
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