本举例是在F5000-AI160的E8371版本上进行配置和验证的。
如下图所示，某公司为了隐藏内部网络，为用户分配的IPv6地址的前缀为FD01:0203:0405::/48，使用该地址前缀的IPv6地址为唯一本地地址，不可在互联网上路由。
两台NAT66设备连接同一个内部网络，同时连接到不同的外部网络。分别在两台NAT66设备的外网侧接口上配置地址转换，将同一个内网地址转换成不同的外网地址，实现同一个内部地址到多个外部地址的映射。
图-1 IPv6内网用户通过转换后的地址前缀访问外网配置组网图（多宿主）
配置接口IPv6地址
# 根据组网图中规划的信息，配置各接口的IPv6地址，具体配置步骤如下。
<DeviceA> system-view
[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] ipv6 address FD01:0203:0405::10 48
[DeviceA-GigabitEthernet1/0/1] quit
请参考以上步骤配置其他接口的IP地址，具体配置步骤略。
配置路由
本举例仅以静态路由方式配置路由信息。实际组网中，请根据具体情况选择相应的路由配置方式。
# 请根据组网图中规划的信息，配置静态路由，本举例假设到达FTP服务器所在网络的下一跳IP地址为2001:0DB8:0001::11，实际使用中请以具体组网情况为准，具体配置步骤如下。
[DeviceA] ipv6 route-static 2001:0DC8:0001::100 48 2001:0DB8:0001::11
将接口加入安全域
# 请根据组网图中规划的信息，将接口加入对应的安全域，具体配置步骤如下。
[DeviceA] security-zone name trust
[DeviceA-security-zone-Trust] import interface gigabitethernet 1/0/1
[DeviceA-security-zone-Trust] quit
[DeviceA] security-zone name untrust
[DeviceA-security-zone-Untrust] import interface gigabitethernet 1/0/2
[DeviceA-security-zone-Untrust] quit
配置安全策略
# 配置名称为trust-untrust的安全策略，保证Trust安全域内的Host 可以访问Internet中的FTP Server，具体配置步骤如下。
[DeviceA] security-policy ipv6
[DeviceA-security-policy-ipv6] rule name trust-untrust
[DeviceA-security-policy-ipv6-1-trust-untrust] source-zone trust
[DeviceA-security-policy-ipv6-1-trust-untrust] destination-zone untrust
[DeviceA-security-policy-ipv6-1-trust-untrust] source-ip-host FD01:0203:0405::1
[DeviceA-security-policy-ipv6-1-trust-untrust] destination-ip-host 2001:0DC8:0001::100
[DeviceA-security-policy-ipv6-1-trust-untrust] action pass
[DeviceA-security-policy-ipv6-1-trust-untrust] quit
[DeviceA-security-policy-ipv6] quit
配置NAT66前缀转换功能
# 配置IPv6源地址转换的前缀映射关系，将IPv6地址前缀FD01:0203:0405::/48转换为2001:0DF8:0001::/48。
[DeviceA] interface gigabitethernet 1/0/2
[DeviceA-GigabitEthernet1/0/2] nat66 prefix source fd01:0203:0405:: 48 2001:0df8:0001:: 48
[DeviceA-GigabitEthernet1/0/2] quit
配置接口IPv6地址
# 根据组网图中规划的信息，配置各接口的IPv6地址，具体配置步骤如下。
<DeviceB> system-view
[DeviceB] interface gigabitethernet 1/0/1
[DeviceB-GigabitEthernet1/0/1] ipv6 address FD01:0203:0405::20 48
[DeviceB-GigabitEthernet1/0/1] quit
请参考以上步骤配置其他接口的IP地址，具体配置步骤略。
配置静态路由
本举例仅以静态路由方式配置路由信息。实际组网中，请根据具体情况选择相应的路由配置方式。
# 请根据组网图中规划的信息，配置静态路由，本举例假设到达FTP服务器所在网络的下一跳IP地址为2001:0DB8:5555::11，实际使用中请以具体组网情况为准，具体配置步骤如下。
[DeviceB] ipv6 route-static 2001:0DC8:0001::100 48 2001:0DB8:5555::11
将接口加入安全域
# 请根据组网图中规划的信息，将接口加入对应的安全域，具体配置步骤如下。
[DeviceB] security-zone name trust
[DeviceB-security-zone-Trust] import interface gigabitethernet 1/0/1
[DeviceB-security-zone-Trust] quit
[DeviceB] security-zone name untrust
[DeviceB-security-zone-Untrust] import interface gigabitethernet 1/0/2
[DeviceB-security-zone-Untrust] quit
配置安全策略
# 配置名称为trust-untrust的安全策略，保证Trust安全域内的Host 可以访问Internet中的FTP Server，具体配置步骤如下。
[DeviceB] security-policy ipv6
[DeviceB-security-policy-ipv6] rule name trust-untrust
[DeviceB-security-policy-ipv6-1-trust-untrust] source-zone trust
[DeviceB-security-policy-ipv6-1-trust-untrust] destination-zone untrust
[DeviceB-security-policy-ipv6-1-trust-untrust] source-ip-host FD01:0203:0405::1
[DeviceB-security-policy-ipv6-1-trust-untrust] destination-ip-host 2001:0DC8:0001::100
[DeviceB-security-policy-ipv6-1-trust-untrust] action pass
[DeviceB-security-policy-ipv6-1-trust-untrust] quit
[DeviceB-security-policy-ipv6] quit
配置NAT66前缀转换功能
# 配置IPv6源地址转换的前缀映射关系，将IPv6地址前缀FD01:0203:0405::/48转换为2001:0DE8:0001::/48。
[DeviceB] interface gigabitethernet 1/0/2
[DeviceB-GigabitEthernet1/0/2] nat66 prefix source fd01:0203:0405:: 48 2001:0de8:0001:: 48
[DeviceB-GigabitEthernet1/0/2] quit
以上配置完成后，内网主机能够通过Device A或Device B访问FTP server。对于内网主机经由不同的NAT66设备到达FTP服务器的报文，映射后的结果不同。同时，从FTP服务器经由不同的NAT66设备到达内网主机的报文，均会被NAT66设备映射为相同的IPv6地址，该地址即为内网主机的唯一本地地址。
# 在Device A上通过查看如下显示信息，可以验证以上配置成功。
[DeviceA] display nat66 all
NAT66 source information:
Totally 1 source rules.
Interface(outbound): GigabitEthernet1/0/2
Original prefix/prefix-length: FD01:203:405::/48
Translated prefix/prefix-length: 2001:DF8:1::/48
# 在Device B上通过查看如下显示信息，可以验证以上配置成功。
[DeviceB] display nat66 all
NAT66 source information:
Totally 1 source rules.
Interface(outbound): GigabitEthernet1/0/2
Original prefix/prefix-length: FD01:203:405::/48
Translated prefix/prefix-length: 2001:DE8:1::/48
# 在Device A上查看内部主机访问外部FTP server时生成NAT66会话信息。
[DeviceA] display nat66 session verbose
Slot 1:
Initiator:
Source IP/port: FD01:203:405::1/35990
Destination IP/port: 2001:DC8:1::100/21
VPN instance/VLAN ID/Inline ID: -/-/-
Protocol: TCP(6)
Inbound interface: GigabitEthernet1/0/1
Source security zone: Trust
Responder:
Source IP/port: 2001:DC8:1::100/21
Destination IP/port: 2001:DF8:1:D50F::1/35990
VPN instance/VLAN ID/Inline ID: -/-/-
Protocol: TCP(6)
Inbound interface: GigabitEthernet1/0/2
Source security zone: Trust
State: TCP_ESTABLISHED
Application: FTP
Rule ID: 0
Rule name: aaa
Start time: 2021-10-31 14:47:44 TTL: 3584s
Initiator->Responder: 0 packets 0 bytes
Responder->Initiator: 0 packets 0 bytes
Total sessions found: 1
# 在Device B上查看内部主机访问外部FTP server时生成NAT66会话信息。
[DeviceB] display nat66 session verbose
Slot 1:
Initiator:
Source IP/port: FD01:203:405::1/35992
Destination IP/port: 2001:DC8:1::100/21
VPN instance/VLAN ID/Inline ID: -/-/-
Protocol: TCP(6)
Inbound interface: GigabitEthernet1/0/1
Source security zone: Trust
Responder:
Source IP/port: 2001:DC8:1::100/21
Destination IP/port: 2001:DE8:1:D51F::1/35992
VPN instance/VLAN ID/Inline ID: -/-/-
Protocol: TCP(6)
Inbound interface: GigabitEthernet1/0/2
Source security zone: Trust
State: TCP_ESTABLISHED
Application: FTP
Rule ID: 0
Rule name: aaa
Start time: 2021-10-31 14:50:03 TTL: 3594s
Initiator->Responder: 0 packets 0 bytes
Responder->Initiator: 0 packets 0 bytes
Total sessions found: 1
Device A
#
interface GigabitEthernet1/0/1
ipv6 address FD01:203:405::10/48
#
interface GigabitEthernet1/0/2
nat66 prefix source FD01:203:405:: 48 2001:DF8:1:: 48
ipv6 address 2001:DB8:1::100/48
#
security-zone name Trust
import interface GigabitEthernet1/0/1
#
security-zone name Untrust
import interface GigabitEthernet1/0/2
#
ipv6 route-static 2001:DC8:1:: 48 2001:DB8:1::11
#
security-policy ipv6
rule 0 name trust-untrust
action pass
source-zone trust
destination-zone untrust
source-ip-host FD01:203:405::1
destination-ip-host 2001:DC8:1::100
#
Device B
#
interface GigabitEthernet1/0/1
ipv6 address FD01:203:405::20/48
#
interface GigabitEthernet1/0/2
nat66 prefix source FD01:203:405:: 48 2001:DE8:1:: 48
ipv6 address 2001:DB8:5555::200/48
#
security-zone name Trust
import interface GigabitEthernet1/0/1
#
security-zone name Untrust
import interface GigabitEthernet1/0/2
#
ipv6 route-static 2001:DC8:1:: 48 2001:DB8:5555::11
#
security-policy ipv6
rule 0 name trust-untrust
action pass
source-zone trust
destination-zone untrust
source-ip-host FD01:203:405::1
destination-ip-host 2001:DC8:1::100