eNSP实例：实现内网可以访问外网，外网可以访问内网WEB服务器

配置：

1、内网三个用户，分别是PC1、PC2所在的vlan10和server所在的vlan20
2、内网两个vlan的网段分别是192.168.10.1/24和192.168.20.1/24
3、vlan用户的网关均在核心交换机SW2上，SW1为二层交换机，SW2为三层交换机
4、核心交换机使用vlan30与出口路由器对接
5、路人甲是公网上的一个用户
要求：
1、PC1、PC2能够ping通server，并且PC1及Server均能够访问路人甲
2、路人甲能够访问到Server的WEB服务

按上面给的要求画出拓扑图如下：

客户端PC1、PC2 、server1、http(路人甲)配置按上图所标，注意server记录启用http服务，如下图

好了，现在开始配置交换机和路由器：

LSW1二层交换机配置如下：

[SwitchA]dis cu
#
sysname SwitchA
#
vlan batch 10 20
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
aaa
 authentication-scheme default
 authorization-scheme default
 accounting-scheme default
 domain default
 domain default_admin
 local-user admin password simple admin
 local-user admin service-type http
#
interface Vlanif1
#
interface MEth0/0/1
#
interface Ethernet0/0/1
 port link-type access
 port default vlan 20
#
interface Ethernet0/0/2
 port link-type access
 port default vlan 10
#
interface Ethernet0/0/3
 port link-type access
 port default vlan 10
#
interface Ethernet0/0/4
#
interface Ethernet0/0/5
#
interface Ethernet0/0/6
#
interface Ethernet0/0/7
#
interface Ethernet0/0/8
#
interface Ethernet0/0/9
#
interface Ethernet0/0/10
#
interface Ethernet0/0/11
#
interface Ethernet0/0/12
#
interface Ethernet0/0/13
#
interface Ethernet0/0/14
#
interface Ethernet0/0/15
#
interface Ethernet0/0/16
#
interface Ethernet0/0/17
#
interface Ethernet0/0/18
#
interface Ethernet0/0/19
#
interface Ethernet0/0/20
#
interface Ethernet0/0/21
#
interface Ethernet0/0/22
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 10 20
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
user-interface con 0
user-interface vty 0 4
#
return
[SwitchA]

LSW2三层交换机配置如下：

[SwitchB]dis cu
#
sysname SwitchB
#
vlan batch 10 20 30
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
diffserv domain default
#
drop-profile default
#
aaa
 authentication-scheme default
 authorization-scheme default
 accounting-scheme default
 domain default
 domain default_admin
 local-user admin password simple admin
 local-user admin service-type http
#
interface Vlanif1
#
interface Vlanif10
 ip address 192.168.10.254 255.255.255.0
#
interface Vlanif20
 ip address 192.168.20.254 255.255.255.0
#
interface Vlanif30
 ip address 192.168.30.1 255.255.255.252
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 10 20
#
interface GigabitEthernet0/0/2
 port link-type access
 port default vlan 30
#
interface GigabitEthernet0/0/3
#
interface GigabitEthernet0/0/4
#
interface GigabitEthernet0/0/5
#
interface GigabitEthernet0/0/6
#
interface GigabitEthernet0/0/7
#
interface GigabitEthernet0/0/8
#
interface GigabitEthernet0/0/9
#
interface GigabitEthernet0/0/10
#
interface GigabitEthernet0/0/11
#
interface GigabitEthernet0/0/12
#
interface GigabitEthernet0/0/13
#
interface GigabitEthernet0/0/14
#
interface GigabitEthernet0/0/15
#
interface GigabitEthernet0/0/16
#
interface GigabitEthernet0/0/17
#
interface GigabitEthernet0/0/18
#
interface GigabitEthernet0/0/19
#
interface GigabitEthernet0/0/20
#
interface GigabitEthernet0/0/21
#
interface GigabitEthernet0/0/22
#
interface GigabitEthernet0/0/23
#
interface GigabitEthernet0/0/24
#
interface NULL0
#
ip route-static 0.0.0.0 0.0.0.0 192.168.30.2
#
user-interface con 0
user-interface vty 0 4
#
return
[SwitchB]

AR1路由器配置如下：

[Huawei]dis cu
[V200R003C00]
#
 snmp-agent local-engineid 800007DB03000000000000
 snmp-agent 
#
 clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load flash:/portalpage.zip
#
 drop illegal-mac alarm
#
 wlan ac-global carrier id other ac id 0
#
 set cpu-usage threshold 80 restore 75
#
acl number 2000  
 rule 5 permit source 192.168.10.0 0.0.0.255 
 rule 10 permit source 192.168.20.0 0.0.0.255 
#
aaa 
 authentication-scheme default
 authorization-scheme default
 accounting-scheme default
 domain default 
 domain default_admin 
 local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
 local-user admin service-type http
#
firewall zone Local
 priority 15
#
interface Ethernet0/0/0
#
interface Ethernet0/0/1
#
interface Ethernet0/0/2
#
interface Ethernet0/0/3
#
interface Ethernet0/0/4
#
interface Ethernet0/0/5
#
interface Ethernet0/0/6
#
interface Ethernet0/0/7
#
interface GigabitEthernet0/0/0
 ip address 192.168.30.2 255.255.255.252 
#
interface GigabitEthernet0/0/1
 ip address 200.1.1.1 255.255.255.0 
 nat server protocol tcp global 200.1.1.100 www inside 192.168.20.1 www
 nat outbound 2000
#
interface NULL0
#
ip route-static 0.0.0.0 0.0.0.0 200.1.1.2
ip route-static 192.168.10.0 255.255.255.0 192.168.30.1
ip route-static 192.168.20.0 255.255.255.0 192.168.30.1
#
user-interface con 0
 authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
[Huawei]

AR2（Internet）路由器配置如下：

[OR2]dis cu
[V200R003C00]
#
 sysname OR2
#
 snmp-agent local-engineid 800007DB03000000000000
 snmp-agent 
#
 clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load flash:/portalpage.zip
#
 drop illegal-mac alarm
#
 wlan ac-global carrier id other ac id 0
#
 set cpu-usage threshold 80 restore 75
#
aaa 
 authentication-scheme default
 authorization-scheme default
 accounting-scheme default
 domain default 
 domain default_admin 
 local-user admin password cipher %$%$K8m.Nt84DZ}e#<0`8bmE3Uw}%$%$
 local-user admin service-type http
#
firewall zone Local
 priority 15
#
interface Ethernet0/0/0
#
interface Ethernet0/0/1
#
interface Ethernet0/0/2
#
interface Ethernet0/0/3
#
interface Ethernet0/0/4
#
interface Ethernet0/0/5
#
interface Ethernet0/0/6
#
interface Ethernet0/0/7
#
interface GigabitEthernet0/0/0
 ip address 200.1.1.2 255.255.255.0 
#
interface GigabitEthernet0/0/1
 ip address 200.2.2.1 255.255.255.0 
#
interface NULL0
#
user-interface con 0
 authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
[OR2]

说明：

192.168.30.1、192.168.30.2这网段是用来交换机和路由器通信，200.1.1.100是假如电信给的一个公网IP。

涉及的知识点有：vlan创建、静态路由、EasyIP映射、NAT Server映射等。