响应式网站区别,网站设计美工多少,拖拽建站平台,百度产品推广二层交换机与防火墙对接上网配置示例
组网图形
图1 二层交换机与防火墙对接上网组网图 二层交换机简介配置注意事项组网需求配置思路操作步骤配置文件相关信息 二层交换机简介
二层交换机指的是仅能够进行二层转发#xff0c;不能进行三层转发的交换机。也就是说仅支持二层…二层交换机与防火墙对接上网配置示例
组网图形
图1 二层交换机与防火墙对接上网组网图 二层交换机简介配置注意事项组网需求配置思路操作步骤配置文件相关信息 二层交换机简介
二层交换机指的是仅能够进行二层转发不能进行三层转发的交换机。也就是说仅支持二层特性不支持路由等三层特性的交换机。
二层交换机一般部署在接入层不能作为用户的网关。 配置注意事项
本举例中的交换机配置适用于S系列交换机所有产品的所有版本。
本举例中的防火墙配置以USG6650 V500R001C60为例其他防火墙的配置方法请参见对应的文档指南。 组网需求
如图1所示某公司拥有多个部门且位于不同网段各部门均有访问Internet的需求。现要求用户通过二层交换机和防火墙访问外部网络且要求防火墙作为用户的网关。 配置思路
采用如下思路进行配置 配置交换机基于接口划分VLAN实现二层转发。 配置防火墙作为用户的网关通过子接口或VLANIF接口实现跨网段的三层转发。 配置防火墙作为DHCP服务器为用户PC分配IP地址。 开启防火墙域间安全策略使不同域的报文可以相互转发。 配置防火墙PAT功能使内网用户可以访问外部网络。 操作步骤
配置交换机 # 配置下行连接用户的接口。 HUAWEI system-view
[HUAWEI] sysname Switch
[Switch] vlan batch 2 3
[Switch] interface gigabitethernet 0/0/2
[Switch-GigabitEthernet0/0/2] port link-type access //配置接口接入类型为access
[Switch-GigabitEthernet0/0/2] port default vlan 2 //配置接口加入VLAN 2
[Switch-GigabitEthernet0/0/2] quit
[Switch] interface gigabitethernet 0/0/3
[Switch-GigabitEthernet0/0/3] port link-type access
[Switch-GigabitEthernet0/0/3] port default vlan 3
[Switch-GigabitEthernet0/0/3] quit # 配置上行连接防火墙的接口。 [Switch] interface gigabitethernet 0/0/1
[Switch-GigabitEthernet0/0/1] port link-type trunk
[Switch-GigabitEthernet0/0/1] port trunk allow-pass vlan 2 3 //配置接口以trunk方式透传VLAN 2和VLAN 3
[Switch-GigabitEthernet0/0/1] quit 配置防火墙 防火墙的配置有两种方式配置子接口或者配置VLANIF接口两种方式选择其一即可。 配置防火墙通过子接口终结VLAN实现跨网段的三层转发。 # 配置终结子接口。 USG6600 system-view
[USG6600] interface gigabitethernet 1/0/1.1
[USG6600-GigabitEthernet1/0/1.1] vlan-type dot1q 2
[USG6600-GigabitEthernet1/0/1.1] ip address 192.168.1.1 24
[USG6600-GigabitEthernet1/0/1.1] quit
[USG6600] interface gigabitethernet 1/0/1.2
[USG6600-GigabitEthernet1/0/1.2] vlan-type dot1q 3
[USG6600-GigabitEthernet1/0/1.2] ip address 192.168.2.1 24
[USG6600-GigabitEthernet1/0/1.2] quit # 配置DHCP功能为内网用户分配IP地址并指定DNS服务器地址。 [USG6600] dhcp enable
[USG6600] interface gigabitethernet 1/0/1.1
[USG6600-GigabitEthernet1/0/1.1] dhcp select interface //开启接口采用接口地址池的DHCP Server功能
[USG6600-GigabitEthernet1/0/1.1] dhcp server dns-list 114.114.114.114 223.5.5.5 //配置的DNS-List 114.114.114.114是公用的DNS服务器地址是不区分运营商的。在实际应用中请根据运营商分配的DNS进行配置
[USG6600-GigabitEthernet1/0/1.1] quit
[USG6600] interface gigabitethernet 1/0/1.2
[USG6600-GigabitEthernet1/0/1.2] dhcp select interface
[USG6600-GigabitEthernet1/0/1.2] dhcp server dns-list 114.114.114.114 223.5.5.5
[USG6600-GigabitEthernet1/0/1.2] quit # 配置公网接口的IP地址和静态路由。 [USG6600] interface gigabitethernet 1/0/2
[USG6600-GigabitEthernet1/0/2] ip address 203.0.113.2 255.255.255.0 //配置连接公网的接口GE0/0/2的IP地址203.0.113.2
[USG6600-GigabitEthernet1/0/2] quit
[USG6600] ip route-static 0.0.0.0 0.0.0.0 203.0.113.1 //配置静态缺省路由的下一跳指向公网提供的IP地址203.0.113.1 # 配置安全区域。 [USG6600] firewall zone trust //配置trust域
[USG6600-zone-trust] add interface gigabitethernet 1/0/1
[USG6600-zone-trust] add interface gigabitethernet 1/0/1.1
[USG6600-zone-trust] add interface gigabitethernet 1/0/1.2
[USG6600-zone-trust] quit
[USG6600] firewall zone untrust //配置untrust域
[USG6600-zone-untrust] add interface gigabitethernet 1/0/2
[USG6600-zone-untrust] quit # 配置安全策略允许域间互访。 [USG6600] security-policy
[USG6600-policy-security] rule name policy1
[USG6600-policy-security-rule-policy1] source-zone trust
[USG6600-policy-security-rule-policy1] destination-zone untrust
[USG6600-policy-security-rule-policy1] source-address 192.168.0.0 mask 255.255.0.0
[USG6600-policy-security-rule-policy1] action permit
[USG6600-policy-security-rule-policy1] quit
[USG6600-policy-security] quit # 配置PAT地址池开启允许端口地址转换。 [USG6600] nat address-group addressgroup1
[USG6600-address-group-addressgroup1] mode pat
[USG6600-address-group-addressgroup1] route enable
[USG6600-address-group-addressgroup1] section 0 203.0.113.2 203.0.113.2 //转换的公网IP地址
[USG6600-address-group-addressgroup1] quit # 配置源PAT策略实现私网指定网段访问公网时自动进行源地址转换。 [USG6600] nat-policy
[USG6600-policy-nat] rule name policy_nat1
[USG6600-policy-nat-rule-policy_nat1] source-zone trust
[USG6600-policy-nat-rule-policy_nat1] destination-zone untrust
[USG6600-policy-nat-rule-policy_nat1] source-address 192.168.0.0 mask 255.255.0.0 //允许进行PAT转换的源IP地址
[USG6600-policy-nat-rule-policy_nat1] action nat address-group addressgroup1
[USG6600-policy-nat-rule-policy_nat1] quit
[USG6600-policy-nat] quit
[USG6600] quit 配置防火墙通过配置VLANIF接口实现跨网段的三层转发。 # 配置VLANIF接口。 USG6600 system-view
[USG6600] vlan batch 2 3
[USG6600] interface gigabitethernet 1/0/1
[USG6600-GigabitEthernet1/0/1] portswitch //将以太网接口从三层模式切换到二层模式。如果接口已经是二层模式跳过该步骤
[USG6600-GigabitEthernet1/0/1] port link-type hybrid
[USG6600-GigabitEthernet1/0/1] port hybrid tagged vlan 2 to 3
[USG6600-GigabitEthernet1/0/1] quit
[USG6600] interface vlanif 2
[USG6600-Vlanif2] ip address 192.168.1.1 24 //配置VLANIF2的IP地址作为PC1的网关
[USG6600-Vlanif2] quit
[USG6600] interface vlanif 3
[USG6600-Vlanif3] ip address 192.168.2.1 24 //配置VLANIF3的IP地址作为PC2的网关
[USG6600-Vlanif3] quit # 配置DHCP功能。 [USG6600] dhcp enable
[USG6600] interface vlanif 2
[USG6600-Vlanif2] dhcp select interface
[USG6600-Vlanif2] dhcp server dns-list 114.114.114.114 223.5.5.5 //配置的DNS-List 114.114.114.114是公用的DNS服务器地址是不区分运营商的。在实际应用中请根据运营商分配的DNS进行配置
[USG6600-Vlanif2] quit
[USG6600] interface vlanif 3
[USG6600-Vlanif3] dhcp select interface
[USG6600-Vlanif3] dhcp server dns-list 114.114.114.114 223.5.5.5
[USG6600-Vlanif3] quit # 配置公网接口的IP地址和静态路由。 [USG6600] interface gigabitethernet 1/0/2
[USG6600-GigabitEthernet1/0/2] ip address 203.0.113.2 255.255.255.0
[USG6600-GigabitEthernet1/0/2] quit
[USG6600] ip route-static 0.0.0.0 0.0.0.0 203.0.113.1 //配置静态缺省路由的下一跳指向公网提供的IP地址203.0.113.1 # 配置安全区域。 [USG6600] firewall zone trust
[USG6600-zone-trust] add interface gigabitethernet 1/0/1
[USG6600-zone-trust] add interface vlanif 2
[USG6600-zone-trust] add interface vlanif 3
[USG6600-zone-trust] quit
[USG6600] firewall zone untrust
[USG6600-zone-untrust] add interface gigabitethernet 1/0/2
[USG6600-zone-untrust] quit # 配置安全策略允许域间互访。 [USG6600] security-policy
[USG6600-policy-security] rule name policy1
[USG6600-policy-security-rule-policy1] source-zone trust
[USG6600-policy-security-rule-policy1] destination-zone untrust
[USG6600-policy-security-rule-policy1] source-address 192.168.0.0 mask 255.255.0.0
[USG6600-policy-security-rule-policy1] action permit
[USG6600-policy-security-rule-policy1] quit
[USG6600-policy-security] quit # 配置PAT地址池开启允许端口地址转换。 [USG6600] nat address-group addressgroup1
[USG6600-address-group-addressgroup1] mode pat
[USG6600-address-group-addressgroup1] route enable
[USG6600-address-group-addressgroup1] section 0 203.0.113.2 203.0.113.2 //转换的公网IP地址
[USG6600-address-group-addressgroup1] quit # 配置源PAT策略实现私网指定网段访问公网时自动进行源地址转换。 [USG6600] nat-policy
[USG6600-policy-nat] rule name policy_nat1
[USG6600-policy-nat-rule-policy_nat1] source-zone trust
[USG6600-policy-nat-rule-policy_nat1] destination-zone untrust
[USG6600-policy-nat-rule-policy_nat1] source-address 192.168.0.0 mask 255.255.0.0 //允许进行PAT转换的源IP地址
[USG6600-policy-nat-rule-policy_nat1] action nat address-group addressgroup1
[USG6600-policy-nat-rule-policy_nat1] quit
[USG6600-policy-nat] quit
[USG6600] quit 检查配置结果 配置PC1的IP地址为192.168.1.2/24网关为192.168.1.1PC2的IP地址为192.168.2.2/24网关为192.168.2.1。 配置外网PC的IP地址为203.0.113.1/24网关为203.0.113.2。 配置完成后PC1和PC2都可以Ping通外网的IP 203.0.113.1/24PC1和PC2都可以访问Internet。 配置文件
Switch的配置文件
#
sysname Switch
#
vlan batch 2 to 3
#
interface GigabitEthernet0/0/1port link-type trunkport trunk allow-pass vlan 2 to 3
#
interface GigabitEthernet0/0/2port link-type accessport default vlan 2
#
interface GigabitEthernet0/0/3port link-type accessport default vlan 3
#
return
USG的配置文件防火墙通过子接口进行三层转发的配置文件
#
interface GigabitEthernet1/0/1
#
interface GigabitEthernet1/0/1.1vlan-type dot1q 2 ip address 192.168.1.1 255.255.255.0dhcp select interfacedhcp server dns-list 114.114.114.114 223.5.5.5#
interface GigabitEthernet1/0/1.2vlan-type dot1q 3ip address 192.168.2.1 255.255.255.0dhcp select interfacedhcp server dns-list 114.114.114.114 223.5.5.5
#
interface GigabitEthernet1/0/2ip address 203.0.113.2 255.255.255.0
#
firewall zone trustset priority 85add interface GigabitEthernet1/0/1add interface GigabitEthernet1/0/1.1add interface GigabitEthernet1/0/1.2
#
firewall zone untrustset priority 5add interface GigabitEthernet1/0/2
#ip route-static 0.0.0.0 0.0.0.0 203.0.113.1
#
nat address-group addressgroup1 0 mode pat route enable section 0 203.0.113.2 203.0.113.2
#
security-policy rule name policy1 source-zone trust destination-zone untrust source-address 192.168.0.0 mask 255.255.0.0 action permit
#
nat-policy rule name policy_nat1 source-zone trust destination-zone untrust source-address 192.168.0.0 mask 255.255.0.0 action nat address-group addressgroup1
#
return
USG的配置文件防火墙通过VLANIF接口进行三层转发的配置文件
#vlan batch 2 to 3
#
interface Vlanif2ip address 192.168.1.1 255.255.255.0 dhcp server dns-list 114.114.114.114 223.5.5.5
#
interface Vlanif3ip address 192.168.2.1 255.255.255.0 dhcp select interface dhcp server dns-list 114.114.114.114 223.5.5.5
#
interface GigabitEthernet1/0/1portswitchport hybrid tagged vlan 2 to 3
#
interface GigabitEthernet1/0/2ip address 203.0.113.2 255.255.255.0
#
firewall zone trustset priority 85add interface GigabitEthernet1/0/1add interface Vlanif2add interface Vlanif3
#
firewall zone untrustset priority 5add interface GigabitEthernet1/0/2
#jjaip route-static 0.0.0.0 0.0.0.0 203.0.113.1
#
nat address-group addressgroup1 0 mode pat route enable section 0 203.0.113.2 203.0.113.2
#
security-policy rule name policy1 source-zone trust destination-zone untrust source-address 192.168.0.0 mask 255.255.0.0 action permit
#
nat-policy rule name policy_nat1 source-zone trust destination-zone untrust source-address 192.168.0.0 mask 255.255.0.0 action nat address-group addressgroup1
#
return
