1、原理
Easy IP:实现原理和NAPT相同，同时转换IP地址、传输层端口，区别在于Easy IP没有地址池的概念，使用接口地址作为NAT转换的公有地址
适用场合：需要具有IP地址
2、网络拓扑图
3、具体配置
sw1
<sw1>display current-configuration
#
sysname sw1
#
vlan batch 10 20 30 999
#
cluster enable
ntdp enable
ndp enable
#
drop illegal-mac alarm
#
dhcp enable
#
diffserv domain default
#
drop-profile default
#
ip pool dhcpvlan10
gateway-list 20.1.1.1
network 20.1.1.0 mask 255.255.255.0
lease day 10 hour 0 minute 0
dns-list 8.8.8.8
#
ip pool dhcpvlan20
gateway-list 30.1.1.1
network 30.1.1.0 mask 255.255.255.0
lease day 10 hour 0 minute 0
dns-list 8.8.8.8
#
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 20.1.1.1 255.255.255.0
dhcp select global
#
interface Vlanif20
ip address 30.1.1.1 255.255.255.0
dhcp select global
#
interface Vlanif999
ip address 10.1.1.1 255.255.255.0
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/2
port link-type access
port default vlan 999
#
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 10.1.1.2
#
user-interface con 0
user-interface vty 0 4
#
return
<sw1>
R1:
<r1>display current-configuration
[V200R003C00]
#
sysname r1
#
snmp-agent local-engineid 800007DB03000000000000
snmp-agent
#
clock timezone China-Standard-Time minus 08:00:00
#
portal local-server load portalpage.zip
#
drop illegal-mac alarm
#
set cpu-usage threshold 80 restore 75
#
acl number 2000
rule 5 permit source 10.1.1.0 0.0.0.255
rule 10 permit source 20.1.1.0 0.0.0.255
rule 15 permit source 30.1.1.0 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 GigabitEthernet0/0/0
ip address 10.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address 100.1.1.1 255.255.255.0
nat outbound 2000
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
ip route-static 0.0.0.0 0.0.0.0 GigabitEthernet0/0/0 10.1.1.1
ip route-static 0.0.0.0 0.0.0.0 100.1.1.2
#
user-interface con 0
authentication-mode password
user-interface vty 0 4
user-interface vty 16 20
#
wlan ac
#
return
<r1>
4、结果
PC>ping 100.1.1.2//外网
Ping 100.1.1.2: 32 data bytes, Press Ctrl_C to break
From 100.1.1.2: bytes=32 seq=1 ttl=253 time=62 ms
From 100.1.1.2: bytes=32 seq=2 ttl=253 time=63 ms
From 100.1.1.2: bytes=32 seq=3 ttl=253 time=62 ms
From 100.1.1.2: bytes=32 seq=4 ttl=253 time=47 ms
From 100.1.1.2: bytes=32 seq=5 ttl=253 time=78 ms
--- 100.1.1.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 47/62/78 ms
PC>
