SnatTarget

class SnatTarget(*, addr: Optional[Union[IPv4Address, IPv6Address]] = None, port: Optional[int] = None, last_port: Optional[int] = None, is_random=False, is_fully_random=False, is_persistent=False)

This class provides access to the SNAT target

Parameters:

• addr – an IPv4Address or IPv6Address instance

• port – port number (integer)

• last_port – port number (integer) used when defining a port range

• is_random – if True, use the iptables(8) --random option

• is_fully_random – if True, use the iptables(8) --random-fully option

• is_persistent – if True, use the iptables(8) --persistent option

is_fully_random() → bool

Returns True when fully random port mapping is enabled

set_fully_random() → None

Enable randomized port mapping

to_iptables_args() → List[str]

Returns a list of iptables(8) arguments

get_address() → Optional[Union[IPv4Address, IPv6Address]]

Returns the address used as the new source address (in the case of SNAT) or destination address (in the case DNAT).

get_ports() → Tuple[Optional[int], Optional[int]]

Returns the port range used for NATing.

get_target_name() → str

Returns the target name

is_persistent() → bool

Returns True when persistent port mapping is enabled

is_random() → bool

Returns True when random port mapping is enabled

is_terminating() → bool

Returns True if this is a terminating target

set_address(addr: Union[IPv4Address, IPv6Address]) → None

Set the address

set_persistent() → None

Enable persistent port mapping

set_port(port: int) → None

Set the port

set_port_range(port: int, last_port: int) → None

Set the port range

set_random() → None

Enable randomized port mapping