Học kỳ, lục cá nguyệt (đặc biệt trong các trường đại học và trung học Mỹ)

the summer semester

học kỳ mùa hè

noun

course , period , quarter , session

US-R2 (config)# int Fa0/0

US-R2 (config-if)# ip add 192.168.20.65 255.255.255.224

US-R2 (config-if)# no shut

US-R2 (config-if)# exit

US-R2 (config)# int Fa0/1

US-R2 (config-if)# ip add 192.168.20.113 255.255.255.248

US-R2 (config-if)# no shut

US-R2 (config-if)# exit

US-R2 (config)# int S0/0/0

US-R2 (config-if)# ip add 192.168.20.242 255.255.255.252

US-R2 (config-if)# no shut

US-R2 (config-if)# exit

US-R2 (config)# int Lo0

US-R2 (config-if)# ip add 172.16.0.2 255.255.255.255

US-R2 (config-if)# no shut

US-R2 (config-if)# exit

Configure US-PC2 with the last IP address in the subnet.

Ip address: 192.168.20.94Subnet mask: 255.255.255.224Default gateway: 192.168.20.65

US-R1 (config)# int Fa0/1

US-R1 (config-if)# ip add 192.168.20.118 255.255.255.248

US-R1 (config-if)# no shut

US-R1 (config-if)# exit

US-R1# telnet 192.168.20.245

HQ(config)# ip route 10.10.0.0 255.255.252.0 128.107.25.2

HQ(config)# ip route 0.0.0.0 0.0.0.0 S0/1/0

HQ(config)# router ospf 3

HQ(config-router)# network 192.168.20.244 0.0.0.3 area 0

HQ(config-router)# network 192.168.20.240 0.0.0.3 area 0

US-R1 (config)# router ospf 3

US-R1 (config-router)# network 192.168.20.0 0.0.0.63 area 0

US-R1 (config-router)# network 192.168.20.112 0.0.0.7 area 0

US-R1 (config-router)# network 192.168.20.244 0.0.0.3 area 0

US-R2 (config)# router ospf 3

US-R2 (config-router)# network 192.168.20.64 0.0.0.31 area 0

US-R2 (config-router)# network 192.168.20.112 0.0.0.7 area 0

US-R2 (config-router)# network 192.168.20.240 0.0.0.3 area 0

HQ(config-router)# passive-interface s0/1/0

HQ(config-router)# passive-interface s0/1/1

US-R1 (config-router)# passive-interface fa0/0

US-R2 (config-router)# passive-interface fa0/0

HQ(config-router)# default-information originate

US-R1 (config-if)# ip ospf priority 150 (f0/1,s0/0/0)

US_R2 (config-if)# ip ospf priority 75 (f0/1,s0/0/0)

US-R1 (config-if)# ip ospf hello-interval 30 (f0/0)

US-R2 (config-if)# ip ospf hello-interval 30 (f0/1)

US-R1# show ip ospf neighbor

WPC2: 172.16.100.190 255.255.255.192 172.16.100.129

WB1: FA0/1 – 172.16.100.238 255.255.255.240

net 172.16.100.0 0.0.0.127 area 0

net 172.16.100.224 0.0.0.15 area 0

net 172.16.100.244 0.0.0.3 area 0

passive int f0/0

int f0/1 ip ospf priority 100

int s0/0/0 ip ospf priority 100

int f0/1 ip ospf hello-interval 20

WB2:

net 172.16.100.128 0.0.0.63 area 0

net 172.16.100.224 0.0.0.15 area 0

net 172.16.100.240 0.0.0.3 area 0 passive int f0/0

int f0/1 ip ospf priority 50

int s0/0/0 ip ospf priority 50

int f0/1 ip ospf hello-interval 20

WestHQ:

ip route 192.168.0.0 255.255.254.0 192.0.0.2

ip route 0.0.0.0 0.0.0.0 s0/1/0

net 172.16.100.244 0.0.0.3 area 0

net 172.16.100.240 0.0.0.3 area 0

default-information originate

passive int s0/1/0

passive int s0/1/1