SecBlade防火墙单板NAT的配置

SecBlade 防火墙单板NAT的配置

 

一、  组网需求：

SecBlade防火墙单板作为NAT网关，内网的网关终结在S8500上。

二、  组网图：

        

要做NAT网关，SecBlade板只能工作在路由模式，S8505创建三层接口int Vlan-interface 40，作为与SecBlade的内部接口，内网PCA的网关在S8500上。防火墙板作nat，使trust区域的用户能访问公网，外网用户能通过公网地址访问DMZ区域的服务器。

 

软件版本如下：

S8505: VRP310-R1271

SecBlade：VRP3.4-ESS1209

 

三、  配置步骤：

 

本配置适用于S8500VRP3.1-R1271及以后版本，SecBlade VRP3.4-E1209及以后版本。

 

1、S8500配置

[S8505]dis cu                                                                  

#                                                                              

 config-version S8500-VRP310-r1271                                             

#                                                                              

 sysname S8505                                                                 

#                                                                               

 super password level 1 cipher O5(YaI!$LR+Q=^Q`MAF4<1!!                        

#                                                                              

 local-server nas-ip 127.0.0.1 key huawei                                      

#                                                                              

 Xbar load-single                                                              

#                                                                               

 router route-limit 128K                                                       

 router VRF-limit 256                                                          

#                                                                               

 secblade aggregation slot 2           //配置内部端口聚合，增大带宽                                               

#                                                                              

radius scheme system                                                            

 server-type huawei                                                            

 primary authentication 127.0.0.1 1645                                         

 primary accounting 127.0.0.1 1646                                              

 user-name-format without-domain                                               

#                                                                              

domain system                                                                   

 vlan-assignment-mode integer                                                  

 access-limit disable                                                          

 state active                                                                  

 idle-cut disable                                                              

 self-service-url disable                                                      

                                                                               

 domain default enable system                                                  

#                                                                              

vlan 1                                                                         

#                                                                               

vlan 30                          //创建vlan30、vlan40、vlan60                                              

#                                                                              

vlan 40                                                                        

#                                                                               

vlan 60                                                                        

#                                                                              

interface Vlan-interface30           //内网网关                                          

 ip address 30.0.0.254 255.255.255.0                                           

#                                                                              

interface Vlan-interface40                                                      

 ip address 40.0.0.2 255.255.255.0    //与SecBlade内部三层接口                                        

#                                                                              

interface Aux0/0/1                                                              

#                                                                              

interface M-Ethernet0/0/0                                                      

#                                                                               

interface Ethernet4/1/1          //eth4/1/1接内网                                              

 port access vlan 30                                                           

#                                                                              

interface Ethernet4/1/2          //eth4/1/2接外网                                             

 port access vlan 60                                                           

#                                                                              

interface Ethernet4/1/3                                                         

…… ……                                                

#                                                                              

interface NULL0                                                                

#                                                                               

 ip route-static 0.0.0.0 0.0.0.0 40.0.0.1 preference 60  //通过路由，将数据送给Secblade                      

#                                                                              

user-interface con 0                                                           

user-interface aux 0                                                            

user-interface vty 0 4                                                         

#                                                                              

secblade module secblade                                                        

 security-vlan 60                 //vlan60作为security-vlan，将外网数据送到SecBlade                                         

 secblade-interface Vlan-interface40   //vlan40为S8500与SecBlade的内部三层接口                                      

 map to slot 2                   //SecBlade板在2号槽位                                               

#                                                                              

return                                                                         

[S8505]                                                                         

[S8505]    

[S8505]dis mac-address                                                         

MAC ADDR        VLAN ID    STATE            PORT INDEX             AGING TIME(s)

000f-e224-0ed7    60       Learned          InnerPort slot 2        AGING      

000f-e224-0ed7    40       Learned          InnerPort slot 2        AGING      

000f-e230-3748    30       Learned          Ethernet4/1/1           AGING      

000f-e230-3754    60       Learned          Ethernet4/1/2           AGING                                                                      

<S8505>dis arp                                                                 

            Type: S-Static   D-Dynamic                                         

IP Address       MAC Address     VLAN ID  Port Name              Aging Type    

40.0.0.1         000f-e224-0ed7  40       InnerPort slot 2       19    D       

30.0.0.1         000f-e230-3748  30       Ethernet4/1/1          18    D       

                                                                                

---   2 entries found   ---                                                    

<S8505>

 

       

                                                                      

 

2、SecBlade配置：

[SecBlade_FW]dis cu                                                            

#                                                                              

 sysname SecBlade_FW                                                           

#                                                                               

 firewall packet-filter enable                                                 

 firewall packet-filter default permit      //包过滤缺省规则设置为permit                                 

#                                                                               

 firewall statistic system enable                                              

#                                                                              

radius scheme system                                                           

#                                                                              

domain system                                                                  

#                                                                               

acl number 2000                       //用作nat outboundt的数据流                                            

 rule 0 permit source 40.0.0.0 0.255.255.255                                   

 rule 1 permit source 30.0.0.0 0.255.255.255                                   

#                                                                              

interface Aux0                                                                 

 async mode flow                                                                

#                                                                              

interface Ethernet0/1                                                          

#                                                                               

interface Ethernet0/2                                                          

#                                                                              

interface Ethernet0/3                                                           

#                                                                              

interface GigabitEthernet0/0                                                   

#                                                                               

interface GigabitEthernet0/0.1          //与S8500的内部接口                                       

 ip address 40.0.0.1 255.255.255.0                                             

 vlan-type dot1q vid 40                                                         

#                                                                              

interface GigabitEthernet0/0.2          //外网接口                                       

 ip address 60.0.0.1 255.255.255.0                                             

 vlan-type dot1q vid 60                                                        

 nat outbound 2000                  //做nat转换                                            

#                                                                              

interface NULL0                                                                

#                                                                              

firewall zone local                                                            

 set priority 100                                                              

#                                                                              

firewall zone trust                   //内网接口加入trust域                                        

 add interface GigabitEthernet0/0.1                                            

 set priority 85                                                               

#                                                                               

firewall zone untrust               //外网接口加入untrust域                                             

 add interface GigabitEthernet0/0.2                                            

 set priority 5                                                                 

#                                                                              

firewall zone DMZ                                                              

 set priority 50                                                                

#                                                                              

firewall interzone local trust                                                 

#                                                                               

firewall interzone local untrust                                               

#                                                                              

firewall interzone local DMZ                                                    

#                                                                              

firewall interzone trust untrust                                               

#                                                                              

firewall interzone trust DMZ                                                   

#                                                                              

firewall interzone DMZ untrust                                                 

#                                                                               

ip route-static 0.0.0.0 0.0.0.0 60.0.0.60 preference 60      //到公网的缺省路由                    

ip route-static 30.0.0.0 255.255.255.0 40.0.0.2 preference 60  //到内网的路由

 #                                                                               

user-interface con 0                                                           

user-interface aux 0                                                           

 authentication-mode password                                                   

user-interface vty 0 4                                                         

 authentication-mode scheme                                                    

#                                                                               

return                                                                         

[SecBlade_FW]                                                                  

 [SecBlade_FW]                                                                   

[SecBlade_FW]                                                                  

[SecBlade_FW]dis arp                                                           

            Type: S-Static   D-Dynamic                                          

IP Address      MAC Address    Type Vpn-instance Name             Interface    

40.0.0.2        000f-e21e-2204 D                                  GE0/0.1      

60.0.0.60       000f-e230-3754 D                                  GE0/0.2      

                                                                                

---   2 entries found   ---                                                    

                                                      

[SecBlade_FW]dis nat session           //防火墙的NAT 会话表                                       

                                                                               

There are currently 1 NAT session:                                             

                                                                                

Protocol      GlobalAddr  Port      InsideAddr  Port        DestAddr  Port     

       1        60.0.0.1 12288        30.0.0.1 43987       60.0.0.60 43987     

                 status:    11,        TTL: 00:01:00,       Left: 00:00:05     

[SecBlade_FW]                  

                                                                               

     

四、     配置关键点：  

1、SecBlade上要有到内网和外网的路由；S8500上要有到外网的路由，下一跳指向SecBlade。

2、注意将SecBlade子接口加入安全域。