Lab 5-4 Manipulating Administrative Distances

Topology
 
GNS檔案

R1
!
!Step 0: Basic Setting
conf t
hostname R1
no ip domain-lookup
end
!
!Step 1: Configure Addressing
conf t
int lo 1
ip add 172.16.1.1 255.255.255.0
no sh
int lo 101
ip add 192.168.101.1 255.255.255.0
no sh
int fa 0/0
ip add 172.16.12.1 255.255.255.0
no sh
int s 0/0
ip add 172.16.13.1 255.255.255.0
no sh
end
!
!設定Serial介面的頻寬
conf t
int s 0/0
bandwidth 64
end
!
!Step 2: Configure RIP
conf t
router rip
version 2
no auto-summary
network 172.16.0.0
network 192.168.101.0
end
!
!Step 3: Configure OSPF
conf t
int lo 1
ip ospf network point-to-point
int lo 101
ip ospf network point-to-point
end
conf t
router ospf 1
network 172.16.0.0 0.0.255.255 area 0
network 192.168.101.0 0.0.0.255 area 0
end
!
!Step 4: Modify a Routing Protocol’s Distance
!修改RIP的Distance值(120 –> 100)
conf t
router rip
distance 100
end
!
!Step 5: Modify Distance Based on Route Source
!針對OSPF路由中的特定網段(192.168.100-104.x)給予不同的Distance值(110 -> 85)(Route Proccess方式)
conf t
router ospf 1
distance 85 192.168.100.0 0.0.3.255
end
!
!Step 6: Modify Distance Based on an Access List
!針對RIP路由中的特定網段(172.16.x.x)給予不同的Distance值(110 -> 65)(ACL方式)
conf t
access-list 1 permit 172.16.0.0 0.0.255.255
router rip
distance 65 0.0.0.0 255.255.255.255 1
end

R2
!
!Step 0: Basic Setting
conf t
hostname R2
no ip domain-lookup
end
!
!Step 1: Configure Addressing
conf t
int lo 1
ip add 172.16.2.1 255.255.255.0
no sh
int lo 101
ip add 192.168.102.1 255.255.255.0
no sh
int fa 0/0
ip add 172.16.12.2 255.255.255.0
no sh
int fa 0/1
ip add 172.16.23.2 255.255.255.0
no sh
end
!
!Step 2: Configure RIP
conf t
router rip
version 2
no auto-summary
network 172.16.0.0
network 192.168.102.0
end
!
!Step 3: Configure OSPF
conf t
int lo 2
ip ospf network point-to-point
int lo 102
ip ospf network point-to-point
end
conf t
router ospf 1
network 172.16.0.0 0.0.255.255 area 0
network 192.168.102.0 0.0.0.255 area 0
end
!
!Step 4: Modify a Routing Protocol’s Distance
!修改RIP的Distance值(120 –> 100)
conf t
router rip
distance 100
end
!
!Step 5: Modify Distance Based on Route Source
!針對OSPF路由中的特定網段(192.168.100-104.x)給予不同的Distance值(110 -> 85)(Route Proccess方式)
conf t
router ospf 1
distance 85 192.168.100.0 0.0.3.255
end
!
!Step 6: Modify Distance Based on an Access List
!針對RIP路由中的特定網段(172.16.x.x)給予不同的Distance值(110 -> 65)(ACL方式)
conf t
access-list 1 permit 172.16.0.0 0.0.255.255
router rip
distance 65 0.0.0.0 255.255.255.255 1
end

R3
!
!Step 0: Basic Setting
conf t
hostname R3
no ip domain-lookup
end
!
!Step 1: Configure Addressing
conf t
int lo 3
ip add 172.16.3.1 255.255.255.0
no sh
int lo 103
ip add 192.168.103.1 255.255.255.0
no sh
int s 0/0
ip add 172.16.13.3 255.255.255.0
no sh
end
!
!設定Serial介面的頻寬
conf t
int s 0/0
bandwidth 64
end
!
!Step 2: Configure RIP
conf t
router rip
version 2
no auto-summary
network 172.16.0.0
network 192.168.103.0
end
!
!Step 3: Configure OSPF
conf t
int lo 3
ip ospf network point-to-point
int lo 103
ip ospf network point-to-point
end
conf t
router ospf 1
network 172.16.0.0 0.0.255.255 area 0
network 192.168.103.0 0.0.0.255 area 0
end
!
!Step 4: Modify a Routing Protocol’s Distance
!修改RIP的Distance值(120 –> 100)
conf t
router rip
distance 100
end
!
!Step 5: Modify Distance Based on Route Source
!針對OSPF路由中的特定網段(192.168.100-104.x)給予不同的Distance值(110 -> 85)(Route Proccess方式)
conf t
router ospf 1
distance 85 192.168.100.0 0.0.3.255
end
!
!Step 6: Modify Distance Based on an Access List
!針對RIP路由中的特定網段(172.16.x.x)給予不同的Distance值(110 -> 65)(ACL方式)
conf t
access-list 1 permit 172.16.0.0 0.0.255.255
router rip
distance 65 0.0.0.0 255.255.255.255 1
end

SW
!
!基本設定
conf t
hostname SW
no ip domain-lookup
end
!
!設定介面IP
conf t
int range fa 1/1 - 15
speed 100
end
!
!設定VLAN資訊給介面
conf t
int range fa 1/1 - 2
switchport mode access
switchport access vlan 13
int range fa 1/3 - 4
switchport mode access
switchport access vlan 23
end

show指令
show ip int brief
show ip route
show ip protocol
show ip ospf neighbor
clear ip ospf proccess (會讓設備重新競選路由，請小心使用)

參考文件