实验要求:
1)内网IP地址均可互相访问;
2)内网IP地址自动获取IP地址,内网IP地址可访问www.yorickbao.cn;
3)部门2及部门3使用NAT转换后可访问Internet网络,但部门1无法访问;
4)内网服务器对外发布地址为64.1.1.3,互联网用户可ping通此设备。
配置思路:
根据要求配置各个接口,特殊的DHCP,ACL,静态路由及NAT分批次设置即可。
SW1为核心交换机,此处有三个部门和一台服务器,内网需划分4个VLAN,因交换机无法单独配置IP地址,所以对接到AR1的端口需设置为access接口并使用VLANIF绑定。各个VLAN分配IP地址,充当网关使用。因为部门2,部门3访问Internet,则需使用NAT将内网IP地址转换为外网IP地址。部门1设备无法访问Internet,则需要使用ACL进行控制流量。由于服务器需固定一个公网IP地址,则使用静态NAT将私网IP转换为固定IP地址。全部设备路由均由两台路由器完成。
SW1配置
<Huawei>sys
[Huawei]vlan batch 10 20 30 172 1010
[Huawei]dhcp enable
[Huawei]int vlan10
[Huawei-Vlanif10]ip add 192.168.10.254 24
[Huawei-Vlanif10]dhcp select global
[Huawei]int vlan20
[Huawei-Vlanif20]ip add 192.168.20.254 24
[Huawei-Vlanif20]dhcp select global
[Huawei]int vlan30
[Huawei-Vlanif30]ip add 192.168.30.254 24
[Huawei-Vlanif30]dhcp select global
[Huawei]int vlan172
[Huawei-Vlanif172]ip add 172.16.100.254 24
[Huawei-Vlanif172]dhcp select global
[Huawei]int vlan1010 /*此VLAN为交换机对接路由器vlan*/
[Huawei-Vlanif1010]ip add 10.10.10.1 24
[Huawei]ip pool 10
[Huawei-ip-pool-10]network 192.168.10.0 mask 24
[Huawei-ip-pool-10]gateway-list 192.168.10.254
[Huawei-ip-pool-10]dns-list 114.114.114.114 172.16.100.1 /*需写入172.16.100.1,否则无法ping通 www.yorickbao.cn,以下同理*/
[Huawei]ip pool 20
[Huawei-ip-pool-20]network 192.168.20.0 mask 24
[Huawei-ip-pool-20]gateway-list 192.168.20.254
[Huawei-ip-pool-20]dns-list 114.114.114.114 172.16.100.1
[Huawei]ip pool 30
[Huawei-ip-pool-30]network 192.168.30.0 mask 24
[Huawei-ip-pool-30]gateway-list 192.168.30.254
[Huawei-ip-pool-30]dns-list 114.114.114.114 172.16.100.1
[Huawei]ip pool 172
[Huawei-ip-pool-172]network 172.16.100.0 mask 24
[Huawei-ip-pool-172]gateway-list 172.16.100.254
[Huawei-ip-pool-172]dns-list 114.114.114.114 172.16.100.1
[Huawei]int g0/0/4
[Huawei-GigabitEthernet0/0/4]port link-type access /*对端所接设备为服务器,需使用access接口*/
[Huawei-GigabitEthernet0/0/4]port default vlan 172
[Huawei]int g0/0/2
[Huawei-GigabitEthernet0/0/2]port link-type trunk
[Huawei-GigabitEthernet0/0/2]port trunk allow-pass vlan all
[Huawei]int g0/0/3
[Huawei-GigabitEthernet0/0/3]port link-type trunk
[Huawei-GigabitEthernet0/0/3]port trunk allow-pass vlan all
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type access /*此实验中对接AR1接口需设置为access*/
[Huawei-GigabitEthernet0/0/1]port default vlan 1010
[Huawei]ip route-static 10.10.10.0 24 10.10.10.2
[Huawei]ip route-static 64.1.1.0 24 10.10.10.2
[Huawei]ip route-static 8.8.8.0 24 10.10.10.2
[Huawei]ip route-static 9.9.9.0 24 10.10.10.2
SW2配置
<Huawei>sys
[Huawei]vlan batch 10 20 30 172 1010
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type trunk
[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[Huawei-GigabitEthernet0/0/1]int g0/0/2
[Huawei-GigabitEthernet0/0/2]port link-type access
[Huawei-GigabitEthernet0/0/2]port default vlan 10
SW3配置
<Huawei>sys
[Huawei]vlan batch 10 20 30 172 1010
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]port link-type trunk
[Huawei-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[Huawei]int g0/0/2
[Huawei-GigabitEthernet0/0/2]port link-type access
[Huawei-GigabitEthernet0/0/2]port default vlan 20
[Huawei]int g0/0/3
[Huawei-GigabitEthernet0/0/3]port link-type access
[Huawei-GigabitEthernet0/0/3]port default vlan 30
AR1配置
<Huawei>sys
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 10.10.10.2 24
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 64.1.1.1 24
[Huawei]ip route-static 8.8.8.0 24 64.1.1.10
[Huawei]ip route-static 9.9.9.0 24 64.1.1.10
[Huawei]ip route-static 192.168.10.0 24 10.10.10.1
[Huawei]ip route-static 192.168.20.0 24 10.10.10.1
[Huawei]ip route-static 192.168.30.0 24 10.10.10.1
[Huawei]ip route-static 172.16.100.0 24 10.10.10.1
[Huawei]nat address-group 1 64.1.1.5 64.1.1.5
[Huawei]acl 2000
[Huawei-acl-basic-2000]rule 4 deny source 192.168.10.0 0.0.0.255
[Huawei-acl-basic-2000]rule 5 permit source 192.168.0.0 0.0.255.255
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]nat static global 64.1.1.3 inside 172.16.100.1
[Huawei-GigabitEthernet0/0/1]traffic-filter outbound acl 2000 address-group 1
AR2配置
<Huawei>sys
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 64.1.1.10 24
[Huawei]int g1/0/0
[Huawei-GigabitEthernet1/0/0]ip add 8.8.8.254 24
[Huawei]int g2/0/0
[Huawei-GigabitEthernet2/0/0]ip add 9.9.9.254 24
内网机器配置
PC1 至PC3均设置DHCP 自动获取,可获得所在VLAN网段中的IP地址。
服务器地址及网关信息等设置如下,在添加域名后需点击启动,使服务器生效。
外网机器配置
外网服务器及台式机均手动配置IP地址即可。
最终结果
内网
1)内网设备ping www.yorickbao.cn时均可ping通;
2)部门1机器无法ping通外网设备,部门2及部门3设备ping 外网时可正常ping通;
外网
Q&A
Q:为什么8.8.8.8及9.9.9.9无法ping通64.1.1.5
A:此处在路由器AR1中使用的NAT转换为动态NAT,只支持内网地址转换为公网地址,通过此公网地址与Internet进行通信。公网地址无法ping通此IP地址。
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