Routing, ARP, DHCP
    Standard UNIX route command
        /etc/mygate names default gateway at boot time
    rarpd, bootpd, and dhcp server all included
        Enable in /etc/rc.conf
    Configure DHCP service (listening on inside interface!) in /etc/dhcpd.conf
    DHClient in base (even on boot floppy!)
    /etc/hostname.xx0 can contain as little as "dhcp"