1.4.7 Packet Tracer - Configure Router Interfaces (Instructions Answer)

R1(config)# interface gigabitethernet 0/0
R1(config-if)# ip address 172.16.20.1 255.255.255.128
R1(config-if)# no shutdown
R1(config-if)# interface gigabitethernet 0/1
R1(config-if)# ip address 172.16.20.129 255.255.255.128
R1(config-if)# no shutdown

C:\> ping 172.16.20.138

Pinging 172.16.20.138 with 32 bytes of data:

Request timed out.
Reply from 172.16.20.138: bytes=32 time<1ms TTL=127
Reply from 172.16.20.138: bytes=32 time<1ms TTL=127
Reply from 172.16.20.138: bytes=32 time=13ms TTL=127

Ping statistics for 172.16.20.138:
    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 13ms, Average = 4ms

C:\> ping 64.100.1.10

Pinging 64.100.1.10 with 32 bytes of data:

Request timed out.
Reply from 64.100.1.10: bytes=32 time=2ms TTL=126
Reply from 64.100.1.10: bytes=32 time=13ms TTL=126
Reply from 64.100.1.10: bytes=32 time=1ms TTL=126

Ping statistics for 64.100.1.10:
    Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 13ms, Average = 5ms

C:\>

R2(config)# ipv6 unicast-routing
R2(config)# interface gigabitethernet 0/0
R2(config-if)# ipv6 address 2001:db8:c0de:12::1/64
R2(config-if)# ipv6 address fe80::2 link-local
R2(config-if)# no shutdown
R2(config-if)# interface gigabitethernet 0/1
R2(config-if)# ipv6 address 2001:db8:c0de:13::1/64
R2(config-if)# ipv6 address fe80::2 link-local
R2(config-if)# no shutdown

C:\> ping 2001:db8:c0de:12::a

Pinging 2001:db8:c0de:12::a with 32 bytes of data:

Reply from 2001:DB8:C0DE:12::A: bytes=32 time=13ms TTL=127
Reply from 2001:DB8:C0DE:12::A: bytes=32 time<1ms TTL=127
Reply from 2001:DB8:C0DE:12::A: bytes=32 time<1ms TTL=127
Reply from 2001:DB8:C0DE:12::A: bytes=32 time<1ms TTL=127

Ping statistics for 2001:DB8:C0DE:12::A:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 13ms, Average = 3ms

C:\> ping 2001:db8:100:1::a

Pinging 2001:db8:100:1::a with 32 bytes of data:

Reply from 2001:DB8:100:1::A: bytes=32 time=15ms TTL=126
Reply from 2001:DB8:100:1::A: bytes=32 time=7ms TTL=126
Reply from 2001:DB8:100:1::A: bytes=32 time=13ms TTL=126
Reply from 2001:DB8:100:1::A: bytes=32 time=4ms TTL=126

Ping statistics for 2001:DB8:100:1::A:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 4ms, Maximum = 15ms, Average = 9ms

C:\>

! ==============================================================
!--- 1.4.7 Packet Tracer - Configure Router Interfaces
!--- ANSWER SCRIPT FOR ROUTER R1
!--- Usage: on the R1 console, log in with the user EXEC password "cisco", type "enable" and enter the privileged EXEC password "class", then paste this whole file at the R1# prompt. Every line beginning with "!" is a comment; IOS ignores it, so pasting a comment by accident is harmless.
! ==============================================================

configure terminal

! --------------------------------------------------------------
!--- Part 1: Configure IPv4 Addressing and Verify Connectivity.
! --------------------------------------------------------------

!--- G0/0 - PC1 LAN: first host of 172.16.20.0/25 (mask 255.255.255.128).
interface gigabitethernet 0/0
 ip address 172.16.20.1 255.255.255.128
 no shutdown
 exit

!--- G0/1 - PC2 LAN: first host of 172.16.20.128/25 (mask 255.255.255.128).
interface gigabitethernet 0/1
 ip address 172.16.20.129 255.255.255.128
 no shutdown
 exit

end

! --------------------------------------------------------------
!--- Save the configuration to NVRAM. (Press Enter when prompted for the destination filename.)
! --------------------------------------------------------------
copy running-config startup-config


! ==============================================================
!--- Verification:
!---   show ip interface brief  -> G0/0, G0/1 and S0/0/0 up/up with the Addressing Table addresses
!---   show ip route            -> connected 172.16.20.0/25 and 172.16.20.128/25
!--- From PC1: ping 172.16.20.138 (PC2) and 64.100.1.10 (Dual Stack Server).
!--- Note: S0/0/0 (209.165.200.225/30) is preconfigured; the lab does not ask you to configure it.
! ==============================================================

! ==============================================================
!--- 1.4.7 Packet Tracer - Configure Router Interfaces
!--- ANSWER SCRIPT FOR ROUTER R2
!--- Usage: on the R2 console, log in with the user EXEC password "cisco", type "enable" and enter the privileged EXEC password "class", then paste this whole file at the R2# prompt. Every line beginning with "!" is a comment; IOS ignores it, so pasting a comment by accident is harmless.
! ==============================================================

configure terminal

! --------------------------------------------------------------
!--- Part 2: Configure IPv6 Addressing and Verify Connectivity.
! --------------------------------------------------------------

!--- Enable IPv6 routing so R2 forwards IPv6 packets between its LANs and sends Router Advertisements.
ipv6 unicast-routing

!--- G0/0 - PC3 LAN: global unicast address plus link-local fe80::2, which is PC3's default gateway.
interface gigabitethernet 0/0
 ipv6 address 2001:db8:c0de:12::1/64
 ipv6 address fe80::2 link-local
 no shutdown
 exit

!--- G0/1 - PC4 LAN: global unicast address plus the same link-local fe80::2 (PC4's default gateway). A link-local address only has to be unique on its own link.
interface gigabitethernet 0/1
 ipv6 address 2001:db8:c0de:13::1/64
 ipv6 address fe80::2 link-local
 no shutdown
 exit

end

! --------------------------------------------------------------
!--- Save the configuration to NVRAM. (Press Enter when prompted for the destination filename.)
! --------------------------------------------------------------
copy running-config startup-config


! ==============================================================
!--- Verification:
!---   show ipv6 interface brief -> G0/0, G0/1 and S0/0/1 up/up, each with its GUA and FE80::2
!---   show ipv6 route           -> connected 2001:db8:c0de:12::/64 and 2001:db8:c0de:13::/64
!--- From PC4: ping 2001:db8:c0de:12::a (PC3) and 2001:db8:100:1::a (Dual Stack Server).
!--- Note: S0/0/1 (2001:db8:c0de:11::1/64, fe80::2) is preconfigured; the lab does not ask you to configure it.
! ==============================================================