Redes de Computadores

# Trabalho prático 3

Cenário do protocolo 3.1

Baixar arquivo - packet tracer

Considere que dispõe das redes 192.168.0.0/24 a 192.168.10.0/24 para atribuir aos equipamentos. Configure os equipamentos seguindo os passos.

# Defina as redes que vai usar

  • Rede 0: 192.168.0.0 - 255.255.255.0
  • Rede 1: 192.168.1.0 - 255.255.255.0
  • Rede 2: 192.168.2.0 - 255.255.255.0
  • Router 0 Router 1: 192.168.3.0/30
  • Router 1 Router 2: 192.168.3.4/30
  • Router 0 Router 2: 192.168.3.8/30 (exercício 2)

# Apague a configuração do router

Igual para todos os routers

Router> enable
Router# erase startup-config
Router# reload

# Entre no modo de execução privilegiada. Liste as interfaces do router.

Igual para todos os routers

Router> enable
Router# show ip interface brief
# Resultado
Interface              IP-Address      OK? Method Status                Protocol
FastEthernet0/0        unassigned      YES NVRAM  administratively down down
FastEthernet0/1        unassigned      YES NVRAM  administratively down down
Serial0/0/0            unassigned      YES NVRAM  administratively down down
Serial0/0/1            unassigned      YES NVRAM  administratively down down
Vlan1                  unassigned      YES NVRAM  administratively down down

# Entre em modo de configuração. Altere o nome do routers para R0, R1 e R2 conforme o caso

O procedimento é o mesmo para todos

Router# configure terminal
Router(config)# hostname R0
# Resultado:
R0(config)#

# Configure a interface Fast Ethernet e as interfaces Series

# Router R0

R0(config)# interface fastEthernet 0/0
R0(config-if)# ip address 192.168.0.254 255.255.255.0
R0(config-if)# no shutdown

R0(config-if)# exit

R0(config)# interface serial 0/0/0
R0(config-if)# ip address 192.168.3.1 255.255.255.252
R0(config-if)# clock rate 64000
R0(config-if)# no shutdown

# Router R1

R1(config)# interface fastEthernet 0/0
R1(config-if)# ip address 192.168.1.254 255.255.255.0
R1(config-if)# no shutdown

R1(config-if)# exit

R1(config)# interface serial 0/0/0
R1(config-if)# ip address 192.168.3.2 255.255.255.252
R1(config-if)# no shutdown

R1(config-if)# exit

R1(config)# interface serial 0/0/1
R1(config-if)#ip address 192.168.3.5 255.255.255.252
R1(config-if)# clock rate 64000
R1(config-if)# no shutdown

# Router R2

R2(config)# interface fastEthernet 0/0
R2(config-if)# ip address 192.168.2.254 255.255.255.0
R2(config-if)# no shutdown

R2(config-if)# exit

R2(config)# interface serial 0/0/0
R2(config-if)# ip address 192.168.3.6 255.255.255.252
R2(config-if)# no shutdown

# Configure as rotas estáticas. E confirme quais as rotas conhecidas pelos routers.

# Router 0

R0(config)# ip route 192.168.1.0 255.255.255.0 192.168.3.2
R0(config)# ip route 192.168.2.0 255.255.255.0 192.168.3.2
R0(config)# ip route 192.168.3.4 255.255.255.252 192.168.3.2
R0(config)# do show ip route
R0(config)# exit
R0# write memory
# Resultado:
C    192.168.0.0/24 is directly connected, FastEthernet0/0
S    192.168.1.0/24 [1/0] via 192.168.3.2
S    192.168.2.0/24 [1/0] via 192.168.3.2
     192.168.3.0/30 is subnetted, 2 subnets
C       192.168.3.0 is directly connected, Serial0/0/0
S       192.168.3.4 [1/0] via 192.168.3.2

# Router 1

R1(config)# ip route 192.168.0.0 255.255.255.0 192.168.3.1
R1(config)# ip route 192.168.2.0 255.255.255.0 192.168.3.6
R1(config)# do show ip route
R1(config)# exit
R1# write memory
# Resultado:
S    192.168.0.0/24 [1/0] via 192.168.3.1
C    192.168.1.0/24 is directly connected, FastEthernet0/0
S    192.168.2.0/24 [1/0] via 192.168.3.6
     192.168.3.0/30 is subnetted, 2 subnets
C       192.168.3.0 is directly connected, Serial0/0/0
C       192.168.3.4 is directly connected, Serial0/0/1

# Router 2

R2(config)# ip route 192.168.0.0 255.255.255.0 192.168.3.5
R2(config)# ip route 192.168.1.0 255.255.255.0 192.168.3.5
R2(config)# ip route 192.168.3.0 255.255.255.0 192.168.3.5
R2(config)# do show ip route
R2(config)# exit
R2# write memory

# Resultado:

S    192.168.0.0/24 [1/0] via 192.168.3.5
S    192.168.1.0/24 [1/0] via 192.168.3.5
C    192.168.2.0/24 is directly connected, FastEthernet0/0
     192.168.3.0/24 is variably subnetted, 2 subnets, 2 masks
S       192.168.3.0/24 [1/0] via 192.168.3.5
C       192.168.3.4/30 is directly connected, Serial0/0/0

# Verifique a conetividade entre as redes utilizando o comando ping

PC0 como exemplo

PC0 PC4

C:\>ping 192.168.2.1
# Resultado:
Pinging 192.168.2.1 with 32 bytes of data:

Request timed out.
Reply from 192.168.2.1: bytes=32 time=3ms TTL=125
Reply from 192.168.2.1: bytes=32 time=3ms TTL=125
Reply from 192.168.2.1: bytes=32 time=114ms TTL=125

Ping statistics for 192.168.2.1:
    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
    Minimum = 3ms, Maximum = 114ms, Average = 40ms

PC0 R2 Serial 0/0/0

C:\>ping 192.168.3.6
# Resultado:
Pinging 192.168.3.6 with 32 bytes of data:

Reply from 192.168.3.6: bytes=32 time=314ms TTL=253
Reply from 192.168.3.6: bytes=32 time=2ms TTL=253
Reply from 192.168.3.6: bytes=32 time=2ms TTL=253
Reply from 192.168.3.6: bytes=32 time=2ms TTL=253

Ping statistics for 192.168.3.6:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 2ms, Maximum = 314ms, Average = 80ms

PC0 R1 Serial 0/0/0

C:\>ping 192.168.3.2
# Resultado:
Pinging 192.168.3.2 with 32 bytes of data:

Reply from 192.168.3.2: bytes=32 time=341ms TTL=254
Reply from 192.168.3.2: bytes=32 time=1ms TTL=254
Reply from 192.168.3.2: bytes=32 time=1ms TTL=254
Reply from 192.168.3.2: bytes=32 time=1ms TTL=254

Ping statistics for 192.168.3.2:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 341ms, Average = 86ms

PC0 PC2

C:\>ping 192.168.1.1
# Resultado:
Pinging 192.168.1.1 with 32 bytes of data:

Request timed out.
Reply from 192.168.1.1: bytes=32 time=2ms TTL=126
Reply from 192.168.1.1: bytes=32 time=2ms TTL=126
Reply from 192.168.1.1: bytes=32 time=2ms TTL=126

Ping statistics for 192.168.1.1:
    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
    Minimum = 2ms, Maximum = 2ms, Average = 2ms

# Realize as alterações necessária para recriar o próximo cenário

Cenário do protocolo 3.2

# Router R0

R0> enable
R0# configure terminal
R0(config)# interface serial 0/0/1
R0(config-if)# ip address 192.168.3.9 255.255.255.252
R0(config-if)# clock rate 64000
R0(config-if)# no shutdown

R0(config-if)# exit

R0(config)# ip route 192.168.3.4 255.255.255.252 192.168.3.10
R0(config)# ip route 192.168.2.0 255.255.255.0 192.168.3.10

R0(config)# do show ip route
# Resultado:
C    192.168.0.0/24 is directly connected, FastEthernet0/0
S    192.168.1.0/24 [1/0] via 192.168.3.2
                    [1/0] via 192.168.3.10
S    192.168.2.0/24 [1/0] via 192.168.3.2
                    [1/0] via 192.168.3.10
     192.168.3.0/30 is subnetted, 3 subnets
C       192.168.3.0 is directly connected, Serial0/0/0
S       192.168.3.4 [1/0] via 192.168.3.2
                    [1/0] via 192.168.3.10
C       192.168.3.8 is directly connected, Serial0/0/1

# Router R2

R2> enable
R2# configure terminal
R2(config)# interface serial 0/0/1
R2(config-if)# ip address 192.168.3.10 255.255.255.252
R2(config-if)# no shutdown

R0(config-if)# exit

R2(config)#ip route 192.168.3.0 255.255.255.252 192.168.3.9
R2(config)#ip route 192.168.1.0 255.255.255.0 192.168.3.9
R2(config)#ip route 192.168.0.0 255.255.255.0 192.168.3.9

R2(config)# do show ip route
# Resultado:
S    192.168.0.0/24 [1/0] via 192.168.3.5
                    [1/0] via 192.168.3.9
S    192.168.1.0/24 [1/0] via 192.168.3.5
                    [1/0] via 192.168.3.9
C    192.168.2.0/24 is directly connected, FastEthernet0/0
     192.168.3.0/30 is subnetted, 3 subnets
S       192.168.3.0 [1/0] via 192.168.3.9
                    [1/0] via 192.168.3.5
C       192.168.3.4 is directly connected, Serial0/0/0
C       192.168.3.8 is directly connected, Serial0/0/1

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