案例 1: 配置目前网络环境
案例 2: 项目阶段练习
1 案例 1: 配置目前网络环境
1.1 问题
一家新创建的 IT 公司, 公司位于北京有 80 多台服务器
目前网络环境使用技术, 通过端口映射技术将 web 服务器发布给 Internet:
三层交换: 汇聚接入层交换机
默认路由: 实现到互联网数以万计网络访问的简化配置
静态路由: 实现公司内部网络互通
NAT 端口映射: 实现企业内部 Web 服务器的发布
1.2 方案
通过端口映射技术将 web 服务器发布给 Internet, 公司现有网络环境拓扑如图 - 1 所示:
图 - 1
现有网络连接说明如表 - 1 所示:
表 - 1 网络连接说明
1.3 步骤
实现此案例需要按照如下步骤进行.
步骤一: 根据表 - 1 为设备配置 IP 地址, 并为三层交换机开启路由功能
1)MS1 配置 vlan1 与 f0/1 接口的 IP 地址并开启路由功能
- Switch(config)#hostname MS1
- MS1(config)#ip routing
- MS1(config)#interface vlan 1
- MS1(config-if)#ip address 192.168.1.252 255.255.255.0
- MS1(config-if)#no shutdown
- MS1(config-if)#exit
- MS1(config-if)#interface fastEthernet 0/1
- MS1(config-if)#no switchport
- MS1(config-if)#ip address 192.168.2.1 255.255.255.0
- MS1(config-if)#no shutdown
步骤二: 为路由器配置 IP 地址, 添加接口模块
1) 为路由器添加接口模块并进入路由器接口配置 IP 地址
- Router(config)#hostname R1
- R1(config)#interface fastEthernet 0/0
- R1(config-if)#ip address 192.168.2.2 255.255.255.0
- R1(config-if)#no shutdown
- R1(config-if)#exit
- R1(config)#interface fastEthernet 1/0
- R1(config-if)#ip address 61.159.62.129 255.255.255.248
- R1(config-if)#no shutdown
步骤三: 配置 MS1 和路由器的静态路由
- MS1(config-if)#ip route 0.0.0.0 0.0.0.0 192.168.2.2
- R1(config)#ip route 192.168.1.0 255.255.255.0 192.168.2.1
步骤四: 测试 server1 与 R1 接口 IP 的连通性
- PC>ping 192.168.2.2
- Pinging 192.168.2.2 with 32 bytes of data:
- Reply from 192.168.2.2: bytes=32 time=0ms TTL=254
- Reply from 192.168.2.2: bytes=32 time=0ms TTL=254
- Reply from 192.168.2.2: bytes=32 time=0ms TTL=254
- Reply from 192.168.2.2: bytes=32 time=1ms TTL=254
- Ping statistics for 192.168.2.2:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 1ms, Average = 0ms
- PC>ping 61.159.62.129
- Pinging 61.159.62.129 with 32 bytes of data:
- Reply from 61.159.62.129: bytes=32 time=1ms TTL=254
- Reply from 61.159.62.129: bytes=32 time=0ms TTL=254
- Reply from 61.159.62.129: bytes=32 time=2ms TTL=254
- Reply from 61.159.62.129: bytes=32 time=0ms TTL=254
- Ping statistics for 61.159.62.129:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 2ms, Average = 0ms
步骤五: R1 配置端口映射
- R1(config)#ip nat inside source static tcp 192.168.1.8 80 61.159.62.131 80
- R1(config)#interface fastEthernet 0/0
- R1(config-if)#ip nat inside
- R1(config)#interface f1/0
- R1(config-if)#ip nat outside
步骤六: 在 PC7 上查看是映射结果, 如图 - 2 所示
图 - 2
2 案例 2: 项目阶段练习
2.1 问题
现有网络问题分析:
接入层交换机只与同一个三层交换机相连, 存在单点故障而影响网络通信.
互联网连接单一服务商
现有网络需求:
随着企业发展, 为了保证网络的高可用性, 需要使用很多的冗余技术.
保证局域网络不会因为线路故障而导致的网络故障.
保证客户端机器不会因为使用单一网关而出现的单点失败.
保证到互联网的高可用接入使用冗余互联网连接.
提高网络链路带宽.
2.2 方案
基于项目的需求, 需要用到如下技术:
STP: 解决二层环路带来的广播风暴并链路冗余问题
以太网通道: 提高网络链路带宽
RIP 路由协议: 实现网络路径的自动学习
HSRP: 实现网关冗余
重新规划后的网络拓扑如图 - 3:
图 - 3
重新规划后网络连接说明如表 - 2 与表 - 3 所示:
表 - 2 网络连接说明
表 - 3 网络连接说明 (续)
2.3 步骤
实现此案例需要按照如下步骤进行.
步骤一: 静态路由升级动态路由.
1)R1 删除静态路由并配置 rip
- R1(config)#no ip route 192.168.1.0 255.255.255.0 192.168.2.1
- R1(config)#router rip
- R1(config-router)#version 2
- R1(config-router)#no auto-summary
- R1(config-router)#network 192.168.2.0
- R1(config-router)#default-information originate
2)MS1 上删除静态路由并配置 rip
- MS1(config)#no ip route 0.0.0.0 0.0.0.0 192.168.2.2
- MS1(config)#router rip
- MS1(config-router)#version 2
- MS1(config-router)#no auto-summary
- MS1(config-router)#network 192.168.1.0
- MS1(config-router)#network 192.168.2.0
3) 在 MS1 上查看路由表
- MS1#show ip route
- Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
- D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
- N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
- E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
- i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
- * - candidate default, U - per-user static route, o - ODR
- P - periodic downloaded static route
- Gateway of last resort is 192.168.2.2 to network 0.0.0.0
- C 192.168.1.0/24 is directly connected, Vlan1
- C 192.168.2.0/24 is directly connected, FastEthernet0/1
- R* 0.0.0.0/0 [120/1] via 192.168.2.2, 00:00:01, FastEthernet0/1
步骤二: 配置 SW1,SW2,SW3,SW4 与 MS1 的接口为 Trunk 模式并做以太网通道.
1)SW1,SW2,SW3,SW4 上做与 MS1 之间的 trunk 与以太网通道
- Switch(config)#hostname SW1
- SW1(config)#interface range fastEthernet 0/5-6
- SW1(config-if-range)#switchport mode trunk
- SW1(config-if-range)#channel-group 1 mode on
- Switch(config)#hostname SW2
- SW2(config)#interface range fastEthernet 0/7-8
- SW2(config-if-range)#switchport mode trunk
- SW2(config-if-range)#channel-group 2 mode on
- Switch(config)#hostname SW3
- SW3(config)#interface range fastEthernet 0/9-10
- SW3(config-if-range)#switchport mode trunk
- SW3(config-if-range)#channel-group 3 mode on
- Switch(config)#hostname SW4
- SW4(config)#interface range fastEthernet 0/11-12
- SW4(config-if-range)#switchport mode trunk
- SW4(config-if-range)#channel-group 4 mode on
2)MS1 与 SW1,SW2,SW3,SW4 之间做以太网通道并启用 trunk
- MS1(config)#interface range fastEthernet 0/5-6
- MS1(config-if-range)#switchport trunk encapsulation dot1q
- MS1(config-if-range)#switchport mode trunk
- MS1(config-if-range)#channel-group 1 mode on
- MS1(config-if-range)#exit
- MS1(config-if-range)#interface range fastEthernet 0/7-8
- MS1(config-if-range)#switchport trunk encapsulation dot1q
- MS1(config-if-range)#channel-group 2 mode on
- MS1(config-if-range)#switchport mode trunk
- MS1(config-if-range)#exit
- MS1(config-if-range)#interface range fastEthernet 0/9-10
- MS1(config-if-range)#switchport trunk encapsulation dot1q
- MS1(config-if-range)#switchport mode trunk
- MS1(config-if-range)#channel-group 3 mode on
- MS1(config-if-range)#exit
- MS1(config-if-range)#interface range fastEthernet 0/11-12
- MS1(config-if-range)#switchport trunk encapsulation dot1q
- MS1(config-if-range)#switchport mode trunk on
- MS1(config-if-range)#channel-group 4 mode on
步骤三: 添加 MS2 并配置与 MS1,SW1,SW2,SW3,SW4 之间的太网通道.
1) 在 MS1 上配置与 MS2 的以太网通道
- MS1(config)#interface range fastEthernet 0/13-15
- MS1(config-if-range)#channel-group 5 mode on
- MS1(config-if-range)#switchport trunk encapsulation dot1q
- MS1(config-if-range)#switchport mode trunk
2) 在 MS2 并配置与 MS1,SW1,SW2,SW3,SW4 之间的太网通道
- MS2(config)#interface range fastEthernet 0/10-12
- MS2(config-if-range)#channel-group 5 mode on
- MS2(config-if-range)#switchport trunk encapsulation dot1q
- MS2(config-if-range)#switchport mode trunk
- MS2(config-if-range)#exit
- MS2(config)#interface range fastEthernet 0/2-3
- MS2(config-if-range)#channel-group 1 mode on
- MS2(config-if-range)#switchport trunk encapsulation dot1q
- MS2(config-if-range)#switchport mode trunk
- MS2(config-if-range)#exit
- MS2(config)#interface range fastEthernet 0/4-5
- MS2(config-if-range)#channel-group 2 mode on
- MS2(config-if-range)#switchport mode trunk
- MS2(config-if-range)#exit
- MS2(config)#interface range fastEthernet 0/6-7
- MS2(config-if-range)#channel-group 3 mode on
- MS2(config-if-range)#switchport trunk encapsulation dot1q
- MS2(config-if-range)#switchport mode trunk
- MS2(config-if-range)#exit
- MS2(config)#interface range fastEthernet 0/8-9
- MS2(config-if-range)#channel-group 4 mode on
- MS2(config-if-range)#switchport trunk encapsulation dot1q
- MS2(config-if-range)#switchport mode trunk
3) 在 MS1 上查看以太网通道
- MS1>show etherchannel port-channel
- Channel-group listing:
- ----------------------
- Group: 1
- ----------
- Port-channels in the group:
- ---------------------------
- Port-channel: Po1
- ------------
- Age of the Port-channel = 00d:00h:05m:21s
- Logical slot/port = 2/1 Number of ports = 2
- GC = 0x00000000 HotStandBy port = null
- Port state = Port-channel
- Protocol = PAGP
- Port Security = Disabled
- Ports in the Port-channel:
- Index Load Port EC state No of bits
- ------+------+------+------------------+-----------
- 0 00 Fa0/5 On 0
- 0 00 Fa0/6 On 0
- Time since last port bundled: 00d:00h:05m:21s Fa0/6
- Group: 2
- ----------
- Port-channels in the group:
- ---------------------------
- Port-channel: Po2
- ------------
- Age of the Port-channel = 00d:00h:05m:21s
- Logical slot/port = 2/2 Number of ports = 2
- GC = 0x00000000 HotStandBy port = null
- Port state = Port-channel
- Protocol = PAGP
- Port Security = Disabled
- Ports in the Port-channel:
- Index Load Port EC state No of bits
- ------+------+------+------------------+-----------
- 0 00 Fa0/7 On 0
- 0 00 Fa0/8 On 0
- Time since last port bundled: 00d:00h:05m:21s Fa0/8
- Group: 3
- ----------
- Port-channels in the group:
- ---------------------------
- Port-channel: Po3
- ------------
- Age of the Port-channel = 00d:00h:05m:21s
- Logical slot/port = 2/3 Number of ports = 2
- GC = 0x00000000 HotStandBy port = null
- Port state = Port-channel
- Protocol = PAGP
- Port Security = Disabled
- Ports in the Port-channel:
- Index Load Port EC state No of bits
- ------+------+------+------------------+-----------
- 0 00 Fa0/9 On 0
- 0 00 Fa0/10 On 0
- Time since last port bundled: 00d:00h:05m:21s Fa0/10
- Group: 4
- ----------
- Port-channels in the group:
- ---------------------------
- Port-channel: Po4
- ------------
- Age of the Port-channel = 00d:00h:05m:21s
- Logical slot/port = 2/4 Number of ports = 2
- GC = 0x00000000 HotStandBy port = null
- Port state = Port-channel
- Protocol = PAGP
- Port Security = Disabled
- Ports in the Port-channel:
- Index Load Port EC state No of bits
- ------+------+------+------------------+-----------
- 0 00 Fa0/11 On 0
- 0 00 Fa0/12 On 0
- Time since last port bundled: 00d:00h:05m:21s Fa0/12
- Group: 5
- ----------
- Port-channels in the group:
- ---------------------------
- Port-channel: Po5
- ------------
- Age of the Port-channel = 00d:00h:08m:11s
- Logical slot/port = 2/5 Number of ports = 3
- GC = 0x00000000 HotStandBy port = null
- Port state = Port-channel
- Protocol = PAGP
- Port Security = Disabled
- Ports in the Port-channel:
- Index Load Port EC state No of bits
- ------+------+------+------------------+-----------
- 0 00 Fa0/13 On 0
- 0 00 Fa0/14 On 0
- 0 00 Fa0/15 On 0
- Time since last port bundled: 00d:00h:08m:11s Fa0/15
步骤四: MS1 与 MS2 配置 STP
1) 在 MS1 和 MS2 上配置 stp
- MS1(config)#spanning-tree vlan 1 root primary
- MS2(config)#spanning-tree vlan 1 root secondary
2) 在 MS1 和 MS2 上查看 stp
- MS1# show spanning-tree vlan 1
- VLAN0001
- Spanning tree enabled protocol ieee
- Root ID Priority 24577
- Address 0004.9A70.6B06
- This bridge is the root
- Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
- Bridge ID Priority 24577 (priority 24576 sys-id-ext 1)
- Address 0004.9A70.6B06
- Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
- Aging Time 20
- Interface Role Sts Cost Prio.Nbr Type
- ---------------- ---- --- --------- -------- --------------------------------
- Po1 Desg FWD 9 128.27 Shr
- Po2 Desg FWD 9 128.28 Shr
- Po3 Desg FWD 9 128.29 Shr
- Po4 Desg FWD 9 128.30 Shr
- Po5 Desg FWD 8 128.31 Shr
- MS2#show spanning-tree vlan 1
- VLAN0001
- Spanning tree enabled protocol ieee
- Root ID Priority 24577
- Address 0004.9A70.6B06
- Cost 8
- Port 31(Port-channel 5)
- Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
- Bridge ID Priority 28673 (priority 28672 sys-id-ext 1)
- Address 0006.2A05.A2BA
- Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
- Aging Time 20
- Interface Role Sts Cost Prio.Nbr Type
- ---------------- ---- --- --------- -------- --------------------------------
- Po1 Desg FWD 9 128.27 Shr
- Po2 Desg FWD 9 128.28 Shr
- Po3 Desg FWD 9 128.29 Shr
- Po4 Desg FWD 9 128.30 Shr
- Po5 Root FWD 8 128.31 Shr
步骤五: HSRP 配置
1)MS1 配置 HSRP
- MS1(config)#interface vlan 1
- MS1(config-if)#standby 1 ip 192.168.1.254
- MS1(config-if)#standby 1 priority 200
- MS1(config-if)#standby 1 preempt
2)MS2 配置 HSRP 开启路由功能
- MS2(config)#ip routing
- MS2(config)#interface vlan 1
- MS2(config)#ip address 192.168.1.253 255.255.255.0
- MS2(config)#no shutdown
- MS2(config-if)#standby 1 ip 192.168.1.254
- MS2(config-if)#standby 1 priority 195
- MS2(config-if)#standby 1 preempt
3) 配置 MS1 交换机的 HSRP 的端口跟踪, 关闭跟踪接口, 并在 MS1 和 MS2 上查看 HSRP 状态
- MS1(config)# MS1(config)#interface vlan 1
- MS1(config-if)#standby 1 track fastEthernet 0/1
- MS1(config-if)#exit
- MS1(config)#interface fastEthernet 0/1
- MS1(config-if)#shutdown
- MS1#show standby brief
- P indicates configured to preempt.
- |
- Interface Grp Pri P State Active Standby Virtual IP
- Vl1 1 190 P Standby 192.168.1.253 local 192.168.1.254
- MS2#show standby brief
- P indicates configured to preempt.
- Interface Grp Pri P State Active Standby Virtual IP
- Vl1 1 195 P Active local 192.168.1.252 192.168.1.254
步骤六: MS2 连接 R1 并配置 rip
1) 为 R1 与 MS2 相连接的接口配置 IP 地址 并配置 rip
- R1(config)#interface fastEthernet 0/24
- R1(config-if)#ip address 192.168.3.2 255.255.255.0
- R1(config-if)#exit
- R1(config)#router rip
- R1(config-router)# version 2
- R1(config-router)#network 192.168.3.0
- MS2(config-if)#exit
- MS2(config)#router rip
- MS2(config-router)#version 2
- MS2(config-router)#no auto-summary
- MS2(config-router)#network 192.168.1.0
步骤七: 添加路由器 R2, 为 R2 配置默认路由, R2 与 MS1,MS2,Internet 相连并为配置 IP 与动态路由
1) 配置 R2 的 IP 地址, rip, 默认路由.
- Router(config)hostname R2
- R2(config)#interface fastEthernet 0/0
- R2(config-if)#ip address 192.168.4.2 255.255.255.0
- R2(config-if)#no shutdown
- R2(config-if)#exit
- R2(config)#interface fastEthernet 0/1
- R2(config-if)#ip address 192.168.5.2 255.255.255.0
- R2(config-if)#no shutdown
- R2(config-if)#exit
- R2(config)#interface fastEthernet 1/0
- R2(config-if)#ip address 61.159.62.130 255.255.255.248
- R2(config-if)#no shutdown
- R2(config-if)#exit
- R2(config)ip route 0.0.0.0 0.0.0.0 fastEthernet 1/0
- R2(config)#router rip
- R2(config-router)#version 2
- R2(config-router)#no auto-summary
- R2(config-router)#network 192.168.4.0
- R2(config-router)#network 192.168.5.0
- R2(config-router)#default-information originate
2)MS2 配置 IP 地址添加动态路由条目
- MS2(config)#interface fastEthernet 0/1
- MS2(config-if)#no switchport
- MS2(config-if)#ip address 192.168.4.1 255.255.255.0
- MS2(config-if)#no shutdown
- MS2(config-if)#exit
- MS2(config)#router rip
- R2(config-router)#version 2
- MS2(config-router)#network 192.168.4.0
3)MS1 配置 IP 地址添加动态路由条目
- MS1(config)#interface fastEthernet 0/24
- MS1(config-if)#no switchport
- MS1(config-if)#ip address 192.168.5.1 255.255.255.0
- MS1(config-if)#no shutdown
- MS1(config-if)#exit
- MS1(config)#router rip
- R2(config-router)#version 2
- MS1(config-router)#network 192.168.5.0
4) 在客户端测试网络的联通性
- SERVER>ipconfig
- FastEthernet0 Connection:(default port)
- Link-local IPv6 Address.........: FE80::201:96FF:FEA8:404B
- IP Address......................: 192.168.1.1
- Subnet Mask.....................: 255.255.255.0
- Default Gateway.................: 192.168.1.254
- SERVER>ping 192.168.2.1
- Pinging 192.168.2.1 with 32 bytes of data:
- Reply from 192.168.2.1: bytes=32 time=0ms TTL=255
- Reply from 192.168.2.1: bytes=32 time=0ms TTL=255
- Reply from 192.168.2.1: bytes=32 time=0ms TTL=255
- Reply from 192.168.2.1: bytes=32 time=0ms TTL=255
- Ping statistics for 192.168.2.1:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 0ms, Average = 0ms
- SERVER>ping 192.168.3.1
- Pinging 192.168.3.1 with 32 bytes of data:
- Reply from 192.168.3.1: bytes=32 time=0ms TTL=255
- Reply from 192.168.3.1: bytes=32 time=0ms TTL=255
- Reply from 192.168.3.1: bytes=32 time=0ms TTL=255
- Reply from 192.168.3.1: bytes=32 time=0ms TTL=255
- Ping statistics for 192.168.3.1:
- Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 0ms, Average = 0ms
- SERVER>ping 192.168.4.1
- Pinging 192.168.4.1 with 32 bytes of data:
- Reply from 192.168.4.1: bytes=32 time=1ms TTL=255
- Reply from 192.168.4.1: bytes=32 time=0ms TTL=255
- Reply from 192.168.4.1: bytes=32 time=0ms TTL=255
- Reply from 192.168.4.1: bytes=32 time=0ms TTL=255
- Ping statistics for 192.168.4.1:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 1ms, Average = 0ms
- SERVER>ping 192.168.5.1
- Pinging 192.168.5.1 with 32 bytes of data:
- Reply from 192.168.5.1: bytes=32 time=1ms TTL=255
- Reply from 192.168.5.1: bytes=32 time=1ms TTL=255
- Reply from 192.168.5.1: bytes=32 time=1ms TTL=255
- Reply from 192.168.5.1: bytes=32 time=0ms TTL=255
- Ping statistics for 192.168.5.1:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 1ms, Average = 0ms
- SERVER>ping 192.168.2.2
- Pinging 192.168.2.2 with 32 bytes of data:
- Reply from 192.168.2.2: bytes=32 time=1ms TTL=254
- Reply from 192.168.2.2: bytes=32 time=1ms TTL=254
- Reply from 192.168.2.2: bytes=32 time=11ms TTL=254
- Reply from 192.168.2.2: bytes=32 time=0ms TTL=254
- Ping statistics for 192.168.2.2:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 11ms, Average = 3ms
- SERVER>ping 192.168.3.2
- Pinging 192.168.3.2 with 32 bytes of data:
- Reply from 192.168.3.2: bytes=32 time=0ms TTL=254
- Reply from 192.168.3.2: bytes=32 time=0ms TTL=254
- Reply from 192.168.3.2: bytes=32 time=1ms TTL=254
- Reply from 192.168.3.2: bytes=32 time=0ms TTL=254
- Ping statistics for 192.168.3.2:
- Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
- Approximate round trip times in milli-seconds:
- Minimum = 0ms, Maximum = 1ms, Average = 0ms
5) 关闭 MS1
- MS1(config)#interface range fastEthernet 0/1-24
- MS1(config-if-range)#shutdown
6) 在外网测试是否可以访问 web 服务器如图 - 4 所示
图 - 4
步骤八: 在 R2 上配置端口映射
1) 在 R2 上配置端口映射, 指定 NAT 进口
- R2(config)#ip nat inside source static tcp 192.168.1.8 80 61.159.62.131 80
- R2(config)#interface fastEthernet 0/0
- R2(config-if)#ip nat inside
- R2(config-if)#exit
- R2(config)#interface fastEthernet 0/1
- R2(config-if)#ip nat inside
- R2(config-if)#exit
- R2(config)#interface fastEthernet 1/0
- R2(config-if)#ip nat outside
2) 关闭 R1(如图 - 5 所示) 测试外网是否可以正常访问 web 服务器 (因为模拟器有 BUG 所以需要填加一台 Internet 主机 IP:61.159.62.133 测试如图 - 6 所示)
图 - 5
图 - 6
可以访问 web 服务器证明项目升级成功.
来源: http://blog.51cto.com/13735155/2134623