target     prot opt source               destination

ACCEPT all      -- anywhere              anywhere

ACCEPT icmp     -- anywhere              anywhere             icmp any

ACCEPT ipv6-crypt~ anywhere             anywhere

ACCEPT ipv6-auth-- anywhere              anywhere

ACCEPT all      -- anywhere              anywhere             state

RELATED,ESTABLISHED

REJECT all      -- anywhere              anywhere             reject-with

icmp-tiost-prohibited

 
  Internet   NAT

 Internet   ,    -
  Internet   iptables.        
  iptables,    .   
   ,  ,   
.    ,    , 
    IP Masquerade HOWTO,    -
;        tIdp.org/HOWTO/IP-Masquerade-
HOWTO/firewall-examples.html.

        Internet (-
 IP-).   NA         .
    (,      ) 
  LAN    IP-   
  Internet.      (, Web-, FTP- 
)    LAN      
Internet.   iptables        . 
         ; 
        Internet,    LAN.

       
.       Internet,  ,
  ,     
      LAN.    -
     Internet.      -
  ,     ,    
,    Internet.     -
    .

    ,   ethO   Internet
  10.255.255.255,   ethi   LAN   192.168.0.1.
    IP-     .   -
  Internet    ,      ethO
  (  ).

      ,    IP-
.      ,   :

# /sbin/syscti -w net.ipv4.ip forward=l

772                            V.     