20201111 期中週

第一題

Static Routing

R1

int e0/0

ip add 12.1.1.1 255.255.255.0

no shut

int e0/1

ip add 45.1.1.1 255.255.255.0

no shut

int e0/2

ip add 192.168.1.1 255.255.255.0

no shut

exit

ip route 192.168.2.0 255.255.255.0 e0/0 12.1.1.2

ip route 192.168.2.0 255.255.255.0 e0/1 45.1.1.3 10

R2

int e0/0

ip add 12.1.1.2 255.255.255.0

no shut

int e0/1

ip add 23.1.1.2 255.255.255.0

no shut

int e0/2

ip add 192.168.2.1 255.255.255.0

no shut

exit

ip route 192.168.1.0 255.255.255.0 e0/0 12.1.1.1 10

ip route 192.168.1.0 255.255.255.0 e0/1 23.1.1.4

R3

int e0/0

ip add 34.1.1.3 255.255.255.0

no shut

int e0/1

ip add 45.1.1.3 255.255.255.0

no shut

exit

ip route 192.168.1.0 255.255.255.0 e0/1 45.1.1.1

R4

int e0/0

ip add 34.1.1.4 255.255.255.0

no shut

int e0/1

ip add 23.1.1.4 255.255.255.0

no shut

exit

ip route 192.168.1.0 255.255.255.0 e0/0 34.1.1.3

VPC1

ip 192.168.1.2 255.255.0.0

ping 192.168.2.2

VPC2

ip 192.168.2.2 255.255.0.0

ping 192.168.1.2

結果

• H1-->H2

• H2-->H1

第二題

讓 h1、h2 透過 DHCP Server取得 IP 和相關資訊，h1 可 Ping h2

R1

int e0/0

ip addr 12.1.1.1 255.255.255.0

no shut

int e0/1

ip addr 192.168.1.1 255.255.255.0

no shut

exit

ip dhcp pool DHCP

network 192.168.1.0 /24

default-router 192.168.1.1

dns-server 8.8.8.8

R2

int e0/0

ip addr 12.1.1.2 255.255.255.0

no shut

int e0/1

ip addr 192.168.2.1 255.255.255.0

no shut

exit

ip dhcp pool DHCP2

network 192.168.2.0 /24

default-router 192.168.2.1

dns-server 8.8.8.8

VPC1

ip dhcp

ping 192.168.2.2

VPC2

ip dhcp

ping 192.168.1.2

結果

第三題

分別使用 RIP 和 EIGRP 讓 192.168.1.1 可 Ping 192.168.2.1

RIP

R1

int e0/0

ip add 12.1.1.1 255.255.255.0

no shut

int lo 0

ip add 192.168.1.1 255.255.255.0

no shut

exit

router rip

ver 2

no auto-summary

network 12.1.1.0

network 23.1.1.0

network 192.168.1.0

do sh run

do ping 192.168.2.1

R2

int e0/0

ip add 12.1.1.2 255.255.255.0

no shut

int e0/1

ip add 23.1.1.2 255.255.255.0

no shut

exit

router rip

ver 2

no auto-summary

network 12.1.1.0

network 23.1.1.0

do sh run

R3

int e0/0

ip add 23.1.1.3 255.255.255.0

no shut

int lo 0

ip add 192.168.2.1 255.255.255.0

no shut

exit

router rip

ver 2

no auto-summary

network 12.1.1.0

network 23.1.1.0

network 192.168.2.0

do sh run

EIGRP

R1

IP

int e0/0

ip addr 12.1.1.1 255.255.255.0

no shut

int lo 0

ip add 192.168.1.1 255.255.255.0

no shut

exit

router

router eigrp 1

auto-summary

network 12.1.1.0 0.0.0.255

network 192.168.1.0 0.0.0.255

do sh ip ro eigrp

R2

IP

int e0/0

ip add 12.1.1.2 255.255.255.0

no shut

int e0/1

ip add 23.1.1.2 255.255.255.0

no shut

exit

router

router eigrp 1

auto-summary

network 12.1.1.0 0.0.0.255

network 23.1.1.0 0.0.0.255

do sh ip ro eigrp

R3

IP

int e0/0

ip add 23.1.1.3 255.255.255.0

no shut

int lo 0

ip add 192.168.2.1 255.255.255.0

no shut

exit

router

router eigrp 1

auto-summary

network 23.1.1.0 0.0.0.255

network 192.168.2.0 0.0.0.255

do sh ip ro eigrp

結果

RIP

EIGRP

第四題

使用浮動路由，讓 R1 和 R2 斷線後：h1 --> R1 --> R3 --> R2 --> h2

R1

int e0/0

ip add 12.1.1.1 255.255.255.0

no shut

int e0/1

ip add 34.1.1.1 255.255.255.0

no shut

int e0/2

ip add 192.168.1.1 255.255.255.0

no shut

exit

ip route 192.168.2.0 255.255.255.0 e0/0 12.1.1.2

ip route 192.168.2.0 255.255.255.0 e0/1 34.1.1.3 10

R2

int e0/0

ip add 12.1.1.2 255.255.255.0

no shut

int e0/1

ip add 23.1.1.2 255.255.255.0

no shut

int e0/2

ip add 192.168.2.1 255.255.255.0

no shut

exit

ip route 192.168.1.0 255.255.255.0 e0/0 12.1.1.1

ip route 192.168.1.0 255.255.255.0 e0/1 23.1.1.2 10

R3

int e0/0

ip add 34.1.1.3 255.255.255.0

no shut

int e0/1

ip add 23.1.1.3 255.255.255.0

no shut

exit

ip route 192.168.1.0 255.255.255.0 e0/1 34.1.1.1

ip route 192.168.2.0 255.255.255.0 e0/1 23.1.1.2

VPC1

ip 192.168.1.2 255.255.0.0

ip 192.168.1.2 255.255.255.0 192.168.1.1

ping 192.168.2.2

VPC2

ip 192.168.2.2 255.255.0.0

ip 192.168.2.2 255.255.255.0 192.168.2.1

ping 192.168.1.2

結果