第十九期 ASA防火墙综合拓扑

Posted 2020-10-23

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实验目的：
1.VLAN互通
2.VRRP
3.内网PAT访问外网【地址转换成119.1.1.0/29网段】
4.发布Web服务器供外网访问
实验步骤：
配置各个交换机：
SW1：创建vlan1【交换机自带】、vlan2、vlan100

 interface GigabitEthernet0/0/1
 port link-type access
 port def vlan 1
 interface GigabitEthernet0/0/12
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
 interface GigabitEthernet0/0/13
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094

SW2：创建vlan1【交换机自带】、vlan2、vlan100、vlan3

 interface GigabitEthernet0/0/1
 port link-type access
 port default vlan 2
 interface GigabitEthernet0/0/2
 port link-type access
 port default vlan 3
 interface GigabitEthernet0/0/12
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
 interface GigabitEthernet0/0/23
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094

SW3：创建vlan1【交换机自带】、vlan2、vlan100、vlan4

 interface GigabitEthernet0/0/1
 port link-type access                    
 port default vlan 100
 interface GigabitEthernet0/0/2
 port link-type access
 port default vlan 4
 interface GigabitEthernet0/0/13
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
 interface GigabitEthernet0/0/23
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094

配置VRRP：SW3做主VRRP、SW2做备用VRRP

     SW3：interface Vlanif1                         
          ip address 192.168.1.250 255.255.255.0
          vrrp vrid 1 virtual-ip 192.168.1.254\\配置虚拟网关IP
          vrrp vrid 1 priority 150\\配置优先级
          vrrp vrid 1 track interface GigabitEthernet0/0/2 reduced 100
          \\配置链路跟踪使其断掉后优先级下降100
          interface Vlanif2
          ip address 192.168.2.250 255.255.255.0
          vrrp vrid 2 virtual-ip 192.168.2.254\\配置虚拟网关IP
          vrrp vrid 2 priority 150\\配置优先级
          vrrp vrid 2 track interface GigabitEthernet0/0/2 reduced 100
           \\配置链路跟踪使其断掉后优先级下降100
          interface Vlanif100
          ip address 192.168.100.253 255.255.255.0
          vrrp vrid 100 virtual-ip 192.168.100.254\\配置虚拟网关IP
          vrrp vrid 100 priority 150\\配置优先级
          vrrp vrid 100 track interface GigabitEthernet0/0/2 reduced 100
           \\配置链路跟踪使其断掉后优先级下降100
     SW2：interface Vlanif1                         
          ip address 192.168.1.253 255.255.255.0
          vrrp vrid 1 virtual-ip 192.168.1.254\\配置虚拟网关IP
          interface Vlanif2
          ip address 192.168.2.253 255.255.255.0
          vrrp vrid 2 virtual-ip 192.168.2.254\\配置虚拟网关IP
          interface Vlanif100
          ip address 192.168.100.250 255.255.255.0
          vrrp vrid 100 virtual-ip 192.168.100.254\\配置虚拟网关IP

配置OSPF：SW3：ospf 1 router-id 3.3.3.3

               area 0.0.0.0
               network 192.168.1.0 0.0.0.255
               network 192.168.2.0 0.0.0.255
               network 192.168.100.0 0.0.0.255
               network 192.168.4.0 0.0.0.255
          SW2：ospf 1 router-id 2.2.2.2
               area 0.0.0.0
               network 192.168.1.0 0.0.0.255
               network 192.168.2.0 0.0.0.255
               network 192.168.3.0 0.0.0.255
               interface Vlanif3
               ip address 192.168.3.1 255.255.255.0
               interface Vlanif4
               ip address 192.168.4.1 255.255.255.0

配置防火墙【ASA】：interface GigabitEthernet0

                 nameif inside1
                 security-level 100
                 ip address 192.168.4.254 255.255.255.0
                 interface GigabitEthernet1
                 nameif inside2
                 security-level 100
                 ip address 192.168.3.254 255.255.255.0
                 interface GigabitEthernet2
                 nameif outside
                 security-level 0
                 ip address 200.8.8.1 255.255.255.252

配置防火墙下一跳:

route inside1 192.168.1.0 255.255.255.0 192.168.4.1
route inside1 192.168.2.0 255.255.255.0 192.168.4.1
route inside1 192.168.100.0 255.255.255.0 192.168.4.1

配置ISP：interface GigabitEthernet0/0/0

         ip address 200.8.8.2 255.255.255.252 \\配置IP【子网为30位】
         interface GigabitEthernet0/0/1
         ip address 200.9.9.254 255.255.255.0\\配置IP
         默认路由：ip route-static 0.0.0.0 0.0.0.0 200.8.8.1

配置防火墙对ISP下一跳：

 route outside 200.9.9.0 255.255.255.0 200.8.8.2

防火墙设置ACL【使外网可访问内网的web服务】：

 access-list out-to-in permit tcp host 200.9.9.2 host 192.168.100.1 eq 80

调用ACL：

 access-group out-to-in in interface outside

NAT地址转换【将私有地址转换为公有地址119.1.1.0/29】：

            object network vlan1\\配置vlan1 NAT
            subnet 192.168.1.0 255.255.255.0
            nat (inside1,outside) dynamic 119.1.1.1
            quit
           object network vlan2\\配置vlan2 NAT
           subnet 192.168.2.0 255.255.255.0
           nat (inside1,outside) dynamic 119.1.1.2
           quit
          object network vlan100 \\配置vlan100 NAT
          subnet 192.168.100.0 255.255.255.0
          nat (inside1,outside) dynamic 119.1.1.3
          quit

客户端IP:

         Client1:192.168.1.1 255.255.255.0
         Client2:192.168.2.1 255.255.255.0
         Server-web:192.168.100.1 255.255.255.0
         Client3:200.9.9.2 255.255.255.0
         Server-ftp:200.9.9.1 255.255.255.0

结果验证：
1vlan互通
技术分享图片

2VRRP【此时ping的为虚拟网关IP】

3内网PAT访问外网【地址将转换成119.1.1.0/29的网段】

4发布Web服务器供外网访问【Client3为外网客户端】

实验拓扑图【红点代表信号不稳定，不是未开启，数据可以通过】：

谢谢大家支持