slirp: Bind support for host forwarding rules
Extend the hostfwd rule format so that the user can specify on which
host interface qemu should listen for incoming connections. If omitted,
binding will takes place against all interfaces.
Signed-off-by: Jan Kiszka <[email protected]>
Signed-off-by: Anthony Liguori <[email protected]>
diff --git a/qemu-options.hx b/qemu-options.hx
index da5b0ac..2f21e0a 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -881,11 +881,12 @@
@file{/usr/sbin/smbd}. QEMU was tested successfully with smbd versions from
Red Hat 9, Fedora Core 3 and OpenSUSE 11.x.
-@item hostfwd=[tcp|udp]:@var{hostport}:[@var{guestaddr}]:@var{guestport}
+@item hostfwd=[tcp|udp]:[@var{hostaddr}]:@var{hostport}-[@var{guestaddr}]:@var{guestport}
Redirect incoming TCP or UDP connections to the host port @var{hostport} to
the guest IP address @var{guestaddr} on guest port @var{guestport}. If
@var{guestaddr} is not specified, its value is x.x.x.15 (default first address
-given by the built-in DHCP server). If no connection type is specified, TCP is
+given by the built-in DHCP server). By specifying @var{hostaddr}, the rule can
+be bound to a specific host interface. If no connection type is set, TCP is
used. This option can be given multiple times.
For example, to redirect host X11 connection from screen 1 to guest
@@ -893,7 +894,7 @@
@example
# on the host
-qemu -net user,hostfwd=tcp:6001::6000 [...]
+qemu -net user,hostfwd=tcp:127.0.0.1:6001-:6000 [...]
# this host xterm should open in the guest X11 server
xterm -display :1
@end example
@@ -911,8 +912,8 @@
connect to the guest telnet server.
@item guestfwd=[tcp]:@var{server}:@var{port}-@var{dev}
-Forward guest TCP connections to port @var{port} on the host to character
-device @var{dev}. This option can be given multiple times.
+Forward guest TCP connections to the IP address @var{server} on port @var{port}
+to the character device @var{dev}. This option can be given multiple times.
@end table
