???????????????
#hostname name                          //?????????
#interface gigabitethernet0/0           //??????0/0
#nameif outside                         //???y?????outside
#security-level 0                       //???e?????? ?????0--100??????????????????
#ip address 218.xxx.xxx.xxx  255.255.255.248 //??????ip???
#no shutdown
#interface ethernet0/1                  //??????0/1
#nameif inside                          //???y?????inside
#security-level 100                     //???e?????? ?????0--100??????????????????
#ip address 192.168.10.1  255.255.255.0 //????ip???
#duplex full                            //????
#speed 100                              //????
#no shutdown
#interface ethernet0/2                 //??????0/2
#nameif dmz                            //???y?????dmz
#security-level 50                     //???e?????? ?????0--100??????????????????
#ip address 192.168.9.1  255.255.255.0 //????dmz???ip???
#no shutdown
#interface Management0/0                //?????????
# nameif guanli                         //?????
# security-level 100                    //???????
#ip address 192.168.1.1 255.255.255.0   //IP???
???????security-level ???e????????????????? 0/0  ??????????? 0
????????????     0/1  ??????????? 100
????dmz ????     0/2  ??????????? 50
???????????￡???????????????????????????????????????
????#same-security-traffic permit interface  //??????????????????以??????
??????????????????????????????л???IP???????????????????ACL????????б?????????????????
?????????????????????????????conduit??acl??????????????????????е????????
????????global??nat??static??route????
????1??global????
????global (if_name) nat_id ipaddress--ipaddress [netmask mask]
????if_name:???????
????nat_id:???????ID?????
????ipaddress--ipaddress [netmask mask]???????IP??????Χ???????????????
????????
????global(outside) 1 218.106.236.247-218.106.236.249            //????????????
????global(outside) 1 interface                                  //???????????outside??????
????global(outside) 1 218.106.236.237 netmask 255.255.255.248    //??????????????255.255.255.248??????????Χ?????
????2??nat????
??????1???????÷?
????nat (if_name)  nat_id  local_ip  [netmask]
????if_name:???????
????nat_id:???????ID????????global?ж????nat_id
????local_ip  [netmask] :??Щ????????nat_id???????????