This option specifies on which entrance port DeleGate receives
requests from clients.
As a typical example, "-P8080" means it accepts request on TCP port
numbered 8080 on any network interface belong to the host machine.
When the host has multiple interfaces or multiple IP addresses
assigned to a single physical interface, you can select one of them
with the specification format -Phost:portNum, like
"-Plocalhost:8080" for example.
A DeleGate server can accept from multiple ports or (limited) multiple
network interfaces by -Pport,port,...
When no host is specified, only IPv4 addresses are accepted.
That is, -P8080 is the abbreviation of "-P0.0.0.0:8080".
To specify IPv6 address here, substitute each colon symbol in the
IPv6 address notation with an under score symbol. Fore example,
"-P__:8080" means accepting at port 8080 with the wild card address
of IPv6 "::". If necessary, a scope-ID can be specified with "%" symbol,
like "-Pfe80__12_34%en0:8080" for example.
Note: See SRCIF
as to selection of a source address of an outgoing connection.
An entrance port is made as a TCP port by default except UDP based
application protocol (dns, icp, cuseeme, udprelay) is specified in
And regardless of the protocol specified in SERVER, it can be
made as a UDP port with postfix "/udp" like -Pport/udp.
If "/protocolName" is specified, as "-P21/ftp,80/http,1080/socks"
for example, the DeleGate will act in the specified application protocol
on the specified port, rather than in the default protocol specified in
the SERVER parameter.
This option MUST be specified except in following cases.
It is ignored when the DeleGate is invoked from inetd(8),
or in most case of -Ffunction option,
or when running as a tunnel server