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網絡工程VRRP+MSTP+OSPF+PPP案例

地址 then 網絡 主備 com pc2 工程 版本 nat

1.所需設備
3臺路由器R1、R2、R3,2臺三層交換機S1、S2,兩臺二層交換機S3、S4,PC機5臺,交叉線直連線各若幹,DCE-DTE串行線一條。
2.拓撲結構圖
技術分享圖片
3.組網
路由器R1啟動OSPF路由協議並鏈接兩個網絡F0連接192.168.1.0 Area 1與S0連接192.168.2.0 Area 0,針對S0端口啟動PPP PAP 認證。在F0端口啟動ACL,允許IP為192.168.3.1-127的主機訪問192.168.1.0網絡,但不允許IP為192.168.3.128-254的主機訪問。
? 路由器R2 啟動OSPF協議及RIP協議,右端S0/1鏈接192.168.2.0 Area 0 路由協議為OSPF,左端F0鏈接192.168.3.0網絡 路由協議為RIP2。
? 路由器R3啟動RIP協議,上端F0/2連接192.168.3.0網絡,左端F0/0連接192.168.4.0網絡,右端F0/1鏈接192.168.5.0網絡。針對F0/0、F0/1為入口F3為出口的網絡通信啟用NAT功能,將來自192.168.10.0網絡的源IP地址動態的轉換為192.168.3.1-127,來自192.168.20.0網絡的源IP地址動態轉換為192.168.3.128-254。
? R3下有vlan 10 、vlan 20。
? S1 、S2 都分別對兩vlan起用vrrp組,vlan 10的vrrp虛擬IP為192.168.10.254,vlan 20的vrrp虛擬IP為192.168.20.254實現兩組的業務的負載分擔和備份。
? S1、S2、S3、S4 都起用 mstp多生成數協議,並且實例映射一致(vlan 10映射實例1、vlan 20映射實例2 其他vlan映射默認實例0)。
? Vlan 10以S1為根橋; vlan 20以S2為根橋;實現阻斷網絡環路,並能實現不同vlan數據流負載分擔功能。
? PC1的默認網關為192.168.10.254,PC2的默認網關為192.168.20.254。
?NAT,MSTP,VRRP 實現
4.詳細配置
R1的配置
En
進入特權模式
conf t
進入全局模式
int s 0/1
進入接口模式
ip address 192.168.2.2 255.255.255.0
給接口配置IP地址
no shutdown
啟用接口

int f0/0
ip address 192.168.1.1 255.255.255.0
no shutdown

router OSPF 1
進入 OSPF協議模式,進程 號為1
network 192.168.2.0 0.0.0.255 area 0
network 192.168.1.0 0.0.0.255 area 1
聲明本路由由器所知的網段,即路由器活動接口所在的網段

access-list 10 permit 192.168.3.127 0.0.0.127
設置標準訪問控制列表,允許指定的網段
access-list 10 deny 192.168.3.128 0.0.0.127
拒絕指定的網段
interface fa 0
ip access-group 1 out
在接口模式下應用訪問控制列表
username ruijie password 123
在路由器上建立 一個用戶,並設置密碼
interface seri 0
encapsulation ppp
ppp authentication pap
設置串行鏈路的認證模式為ppp+chap

R2的配置
configure terminal
interface fa 0
ip address 192.168.3.2 255.255.255.0
no shutdown
exit
interface Ser 0
ip address 192.168.2.1 255.255.255.0
clork rate 5600
no shutdown
exit
router ospf 1
network 192.168.2.0 0.0.0.255 area 0
exit
router rip
version 2
network 192.168.3.0
exit
router ospf 1
redistribute rip metric-type 1 metric 10 subnets
exit
router rip
redistribute ospf 1 metric 3
exit
inter ser 0
ppp pap sent-username ruijie password 123
exit
R3的配置
configure terminal
interface fa 0
ip address 192.168.4.2 255.255.255.0
no shutdown
exit
interface fa 1
ip address 192.168.5.2 255.255.255.0
no shutdown
exit
interface fa 2
ip address 192.168.3.1 255.255.255.0
no shutdown
exit
router rip
version 2
network 192.168.5.0
network 192.168.3.0
network 192.168.4.0
interface fastethernet 2
ip nat outside
exit
interface fastethernet 0
ip nat inside
exit
interface fastethernet 1
ip nat inside
exit
access-list 10 permit 192.168.10.0 0.0.0.255
ip nat pool abc 192.168.3.5 192.168.3.127 netmask 255.255.255.0
ip nat inside source list 10 pool abc overload
access-list 20 permit 192.168.20.0 0.0.0.255
ip nat pool cba 192.168.3.129 192.168.3.253 netmask 255.255.255.0
ip nat inside source list 20 pool cba overload
S1的配置

vlan 10
建立VLAN
exit
vlan 20
exit
inter range fa 0/1-2
switchport mode trunk
exit
設置指定的端口為trunk模式
inter range fa 0/1-2
port-group 1
exit
將端口加入到1號聚合組
inter range fa 0/3-4
switchport mode trunk
exit
spanning-tree
spanning-tree mode mstp
聲明生成樹協議模式為 MST
spanning-tree mst configuration
進入mst配置模式
name taishan
生成樹名稱和更新版本
revision 1
instance 1 vlan 10
instance 2 vlan 20
建立實例1和2,關聯相關的VLAN
exit
spanning-tree mst 1 priority 8192
設置相應的實例的優先級,優先級值越小級別越高
inter fa 0/5
no switchport
將接口轉換為路由模式
ip address 192.168.4.1 255.255.255.0
no shut
exit
inter vlan 10
進入vlan10的虛擬接口
ip address 192.168.10.1 255.255.255.0
standby 1 priority 120
設置vrrp的優先級 ,值越小級別越高,級別高的會成為主要轉發的路由器
standby 1 ip 192.168.10.254
設置vrrp1的虛擬ip地址
exit
inter vlan 20
ip address 192.168.20.1 255.255.255.0
standby 2 ip 192.168.20.254
ip router rip
version 2
network 192.168.10.0
network 192.168.20.0
network 192.168.4.0
S2的配置
vlan 10
exit
vlan 20
exit
inter range fa 0/1-2
switchport mode trunk
exit
inter range fa 0/1-2
port-group 1
exit
inter range fa 0/3-4
switchport mode trunk
exit
以下設置MST,優先級與別外一臺路由器相反,以達到互為主備的目的
spanning-tree
spanning-tree mode mstp
spanning-tree mst configuration
name taishan
revision 1
instance 1 vlan 10
instance 2 vlan 20
exit
spanning-tree mst 2 priority 8192
inter fa 0/5
no switchport
ip address 192.168.5.1 255.255.255.0
no shut
Exit
以下為設置VRRP,與上一臺設置的優先級不同,形成互為主備的虛擬網關
inter vlan 10
ip address 192.168.10.1 255.255.255.0
standby 1 ip 192.168.10.254
exit
inter vlan 20
ip address 192.168.20.1 255.255.255.0
standby 2 priority 120
standby 2 ip 192.168.20.254
ip router rip
version 2
network 192.168.10.0
network 192.168.20.0
network 192.168.5.0
S3的配置
vlan 10
exit
vlan 20
exit
inter range fa 0/1-2
switchport mode trunk
exit
spanning-tree
spanning-tree mode mstp
spanning-tree mst configuration
name taishan
revision 1
instance 1 vlan 10
instance 2 vlan 20
exit
inter fa 0/5
switchport access vlan 10
exit
inter vlan 10
ip address 192.168.10.1 255.255.255.0
exit
inter vlan 20
ip address 192.168.20.1 255.255.255.0
S4的配置
vlan 10
exit
vlan 20
exit
inter range fa 0/1-2
switchport mode trunk
exit
spanning-tree
spanning-tree mode mstp
spanning-tree mst configuration
name taishan
revision 1
instance 1 vlan 10
instance 2 vlan 20
exit
inter fa 0/5
switchport access vlan 20
exit
inter vlan 10
ip address 192.168.10.1 255.255.255.0
exit
inter vlan 20
ip address 192.168.20.1 255.255.255.0

網絡工程VRRP+MSTP+OSPF+PPP案例