網絡拓撲圖

ROS的配置

第一步：定義Ros的WAN口及LAN口

將ether1定義為WAN口，連接光貓

ether2定義為LAN口，連接三層交換機

第二步 ：在Ros上添加PPPOE Client，

在Interface接口視圖下，選擇" + " 添加一個PPPOE Client

在General窗口，修改name及Interface兩項

name ：PPPOE的名稱（可自定義）

Interface ：選擇WAN口（WAN口）

在Dial Out窗口下，輸入user 及 password

User：PPPOE賬號

Password：PPPOE密碼

默認勾選User peer DNS（DNS服務器） 及 Add Default Route（默認路由）），勾選后，無需手動添加DNS及靜態路由，即可訪問Internet。

在IP視圖的Addresses窗口，單擊 " + " 添加 ether2-LAN的接口地址：192.168.10.1/24

第三步： 偽裝（NAT）

在IP接口視圖下，打開Firewall窗口的NAT，選擇” + “ 添加

分別需要為每個網段都設置一條NAT

為192.168.200.0/24網段添加一條偽裝

masquerade 偽裝

第四步 ： 添加回程路由

在IP-Routes視圖下，

DST address(目標網段)：192.168.100.0/24

Gatway（LAN口及LAN口IP），相當于下一跳地址。：LAN

需要分別為每個網段添加回程路由（否則流量無法到達該VLAN，會導致出去的包回不來哦）

H3C三層交換機配置

交換機配置如下：

#
version5.20,Release2222P10
#
sysnameH3C
#
irfmac-addresspersistenttimer
irfauto-updateenable
undoirflink-delay
#
domaindefaultenablesystem
#
webidle-timeout30
#
password-recoveryenable
#
vlan1
#
vlan10
#
vlan100
#
vlan200
#
domainsystem
access-limitdisable
stateactive
idle-cutdisable
self-service-urldisable
#
dhcpserverip-pool10
network192.168.10.0mask255.255.255.0
gateway-list192.168.10.1
#
user-groupsystem
group-attributeallow-guest
#
local-userabc
passwordcipher$c$3$3O3TRePwLP0yAqW37DGX1h4rfkdIGQ==
authorization-attributelevel3
service-typeftp
local-useradmin
passwordcipher$c$3$Zn/sUTHSf0+ria4SnwGKiPjLfdwXUt7C
authorization-attributelevel3
service-typeweb
local-userroot
passwordcipher$c$3$4eOQFNifn3uQrpYkYQovG6LThLqFT2Rcc0VD
service-typetelnet
service-typeweb
#
vlan-groupn1
#
interfaceNULL0
#
interfaceVlan-interface1
ipaddress172.16.1.1255.255.255.0
undodhcpselectserverglobal-pool
#
interfaceVlan-interface10
ipaddress192.168.10.2255.255.255.0
#
interfaceVlan-interface100
ipaddress192.168.100.1255.255.255.0
#
interfaceVlan-interface200
ipaddress192.168.200.1255.255.255.0
#
interfaceGigabitEthernet1/0/1
#
interfaceGigabitEthernet1/0/2
#
interfaceGigabitEthernet1/0/3
#
interfaceGigabitEthernet1/0/4
#
interfaceGigabitEthernet1/0/5
#
interfaceGigabitEthernet1/0/6
#
interfaceGigabitEthernet1/0/7
#
interfaceGigabitEthernet1/0/8
#
interfaceGigabitEthernet1/0/9
#
interfaceGigabitEthernet1/0/10
#
interfaceGigabitEthernet1/0/11
portaccessvlan200
#
interfaceGigabitEthernet1/0/12
portaccessvlan100
#
interfaceGigabitEthernet1/0/13
#
interfaceGigabitEthernet1/0/14
#
interfaceGigabitEthernet1/0/15
#
interfaceGigabitEthernet1/0/16
#
interfaceGigabitEthernet1/0/17
#
interfaceGigabitEthernet1/0/18
#
interfaceGigabitEthernet1/0/19
#
interfaceGigabitEthernet1/0/20
portaccessvlan10
#
interfaceGigabitEthernet1/0/21
#
interfaceGigabitEthernet1/0/22
#
interfaceGigabitEthernet1/0/23
#
interfaceGigabitEthernet1/0/24
portlink-typetrunk
porttrunkpermitvlanall
#
interfaceGigabitEthernet1/0/25
shutdown
#
interfaceGigabitEthernet1/0/26
shutdown
#
interfaceGigabitEthernet1/0/27
shutdown
#
interfaceGigabitEthernet1/0/28
shutdown
#
rip1
network192.168.101.0
network192.168.102.0
network192.168.103.0
network10.0.0.0
#
iproute-static0.0.0.00.0.0.010.0.8.1
iproute-static0.0.0.00.0.0.0192.168.10.1
#
dhcpenable
#
ftpserverenable
#
loadxml-configuration
#
user-interfaceaux0
authentication-modepassword
setauthenticationpasswordcipher$c$3$KcMReVoIeZfuRWS6GZQmpte0jZycfXExsQ==
user-interfacevty015
#
return

最終，測試每個網段互通的問題，全部互通。

審核編輯：劉清