CLI方式：IPv4 Internet访问IPv6网络内部服务器典型配置

使用版本

本举例是在F1090的R8660P33版本上进行配置和验证的。

组网需求

如下图所示，某公司将网络升级到了IPv6，此时Internet仍然是IPv4网络。该公司希望内部的FTP服务器能够继续为IPv4 Internet的用户提供服务。该公司拥有的IPv4地址为10.1.1.1。

为满足上述要求，本例实现方式如下：

图-1 IPv4 Internet访问IPv6网络内部服务器配置组网图

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配置步骤

  1. 配置接口IP地址

# 根据组网图中规划的信息，配置各接口的IP地址，具体配置步骤如下。

<Device> system-view

[Device] interface gigabitethernet 1/0/1

[Device-GigabitEthernet1/0/1] ip address 10.1.1.2 24

[Device-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。

  1. 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。

[Device] security-zone name trust

[Device-security-zone-Trust] import interface gigabitethernet 1/0/2

[Device-security-zone-Trust] quit

[Device] security-zone name untrust

[Device-security-zone-Untrust] import interface gigabitethernet 1/0/1

[Device-security-zone-Untrust] quit

  1. 配置安全策略

# 配置名称为aftlocalin的安全策略，使Device能对Host访问Server的报文进行AFT转换，具体配置步骤如下。

[Device] security-policy ip

[Device-security-policy-ip] rule name aftlocalin

[Device-security-policy-ip-1-aftlocalin] source-zone untrust

[Device-security-policy-ip-1-aftlocalin] destination-zone local

[Device-security-policy-ip-1-aftlocalin] destination-ip-host 10.1.1.1

[Device-security-policy-ip-1-aftlocalin] action pass

[Device-security-policy-ip-1-aftlocalin] quit

[Device-security-policy-ip] quit

# 配置名称为aftlocalout的安全策略，允许将AFT转换后的报文转发至Server，具体配置步骤如下。

[Device] security-policy ipv6

[Device-security-policy-ipv6] rule name aftlocalout

[Device-security-policy-ipv6-1-aftlocalout] source-zone local

[Device-security-policy-ipv6-1-aftlocalout] destination-zone trust

[Device-security-policy-ipv6-1-aftlocalout] source-ip-subnet 2012:: 96

[Device-security-policy-ipv6-1-aftlocalout] destination-ip-host 2013::102

[Device-security-policy-ipv6-1-aftlocalout] action pass

[Device-security-policy-ipv6-1-aftlocalout] quit

[Device-security-policy-ipv6] quit

  1. 配置AFT功能

# 配置IPv6侧服务器对应的IPv4地址及端口号。IPv4网络内用户通过访问该IPv4地址及端口即可访问IPv6服务器。

[Device] aft v6server protocol tcp 10.1.1.1 21 2013::102 21

# 报文的源地址将根据配置的NAT64前缀转换为IPv6地址。

[Device] aft prefix-nat64 2012:: 96

# 在设备IPv4侧和IPv6侧接口开启AFT。

[Device] interface gigabitethernet 1/0/1

[Device-GigabitEthernet1/0/1] aft enable

[Device-GigabitEthernet1/0/1] quit

[Device] interface gigabitethernet 1/0/2

[Device-GigabitEthernet1/0/2] aft enable

[Device-GigabitEthernet1/0/2] quit

验证配置

# 以上配置完成后，IPv4 Host可以通过FTP协议访问IPv6 FTP Server。

# 通过查看AFT会话，可以看到创建了一个IPv4会话和IPv6会话，分别对应转换前和转换后的报文。

[Device] display aft session ipv4 verbose

Initiator:

  Source      IP/port: 20.1.1.1/11025

  Destination IP/port: 10.1.1.1/21

  DS-Lite tunnel peer: -

  VPN instance/VLAN ID/Inline ID: -/-/-

  Protocol: TCP(6)

  Inbound interface: GigabitEthernet1/0/1

  Source security zone: Untrust

Responder:

  Source      IP/port: 10.1.1.1/21

  Destination IP/port: 20.1.1.1/11025

  DS-Lite tunnel peer: -

  VPN instance/VLAN ID/Inline ID: -/-/-

  Protocol: TCP(6)

  Inbound interface: GigabitEthernet1/0/2

  Source security zone: Local

State: TCP_ESTABLISHED

Application: FTP

Rule ID: -/-/-

Rule name:

Start time: 2014-03-13 09:07:30  TTL: 3577s

Initiator->Responder:            3 packets        124 bytes

Responder->Initiator:            2 packets        108 bytes

 

Total sessions found: 1

 

[Device] display aft session ipv6 verbose

Initiator:

  Source      IP/port: 2012::1401:0101/1029

  Destination IP/port: 2013::102/21

  VPN instance/VLAN ID/Inline ID: -/-/-

  Protocol: TCP(6)

  Inbound interface: GigabitEthernet1/0/1

  Source security zone: Local

Responder:

  Source      IP/port: 2013::102/21

  Destination IP/port: 2012::1401:0101/1029

  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: aftlocalout

Start time: 2014-03-13 09:07:30  TTL: 3582s

Initiator->Responder:            3 packets        184 bytes

Responder->Initiator:            2 packets        148 bytes

 

Total sessions found: 1

配置文件

#

interface GigabitEthernet1/0/1

 ip address 10.1.1.2 255.255.255.0

 aft enable

#

interface GigabitEthernet1/0/2

 aft enable

 ipv6 address 2013::1/96

#

security-zone name Trust

 import interface GigabitEthernet1/0/2

#

security-zone name Untrust

 import interface GigabitEthernet1/0/1

#

 aft prefix-nat64 2012:: 96

 aft v6server protocol tcp 10.1.1.1 21 2013::102 21

#

security-policy ip

 rule 0 name aftlocalin

  action pass

  source-zone untrust

  destination-zone local

  destination-ip-host 10.1.1.1

#

security-policy ipv6

 rule 0 name aftlocalout

  action pass

  source-zone local

  destination-zone trust

  source-ip-subnet 2012::/96

  destination-ip-host 2013::102

#