Lines Matching +full:port +full:- +full:mapping +full:- +full:mode

1 /* lint -save -library Flexelint comment for external headers */
3 /*-
4  * SPDX-License-Identifier: BSD-2-Clause
99 /* Port and address redirection functions. */
136  * Mode flags and other constants.
139 /* Mode flags, set using PacketAliasSetMode() */
155  * same port as they originated on.  This allows e.g. rsh to work *99% of the
157  * at all).  This mode bit is set by PacketAliasInit(), so it is a default
158  * mode of operation.
164  * destination port and/or address is zero), the packet aliasing engine will
165  * attempt to allocate a socket for the aliasing port it chooses.  This will
168  * a default mode of operation.
173 /*-
178  *		10.0.0.0     ->   10.255.255.255
179  *		172.16.0.0   ->   172.31.255.255
180  *		192.168.0.0  ->   192.168.255.255
226  *		100.64.0.0   ->   100.127.255.255
231  * When this bit is set, UDP uses endpoint-independent mapping (EIM), as per
233  * address:port are mapped to the same NAT address:port, regardless of their
234  * destination address:port. If filtering rules allow, and if
235  * PKT_ALIAS_DENY_INCOMING is unset, any other external address:port can also
236  * send to the internal address:port through its mapped NAT address:port. This
237  * is more compatible with applications, and can reduce the need for port
238  * forwarding, but less scalable as each NAT address:port can only be
239  * concurrently used by at most one internal address:port.
241  * When this bit is unset, UDP packets use endpoint-dependent mapping (EDM)
242  * ("symmetric" NAT). Each connection from a particular internal address:port
244  * unpredictable NAT address:port. Two appplications behind EDM NATs can only
245  * connect to each other by port forwarding on the NAT, or tunnelling through
246  * an in-between server.
251 #define	PKT_ALIAS_ERROR			-1
259 /* lint -restore */