FreeBSD 6.3 - NAT with IPFW
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Public domain    
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### Kernel configuration
    
    # vi /usr/src/sys/i386/conf/GENERIC
        options         IPFIREWALL
        options         IPFIREWALL_DEFAULT_TO_ACCEPT
        options         IPDIVERT
    # cd /usr/src
    # make buildkernel KERNCONF=GENERIC
    # make installkernel KERNCONF=GENERIC
    # reboot
    
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### Startup configuration
    
    # vi /etc/rc.conf
        firewall_enable="YES"
        firewall_type="open"
        natd_enable="YES"
        natd_interface="dc0"
        natd_flags="-dynamic -m"
    # reboot
    
    ( ipfw add divert natd all from any to any via dc0 )
    
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_BY: Pejman Moghadam_  
_TAG: ipfw, nat_  
_DATE: 2008-06-12 22:52:41_