On Sun, Jun 27, 1999 at 12:24:03AM -0400, Paul Miller wrote:
I'm using Debian/unstable and kernel v2.2.10. I have a ip masquerading
Linux box setup and working. I'd like to configure ports 137 to 139 of an
internal machine to act as ports 20137 to 20139 on the external interface of
the Linux box. I.e., the internal ip address sent from the internal machine
is replaced with the external interface's address and anything sent to the
external interface on ports 20137 to 20139, the external interface ip
address is replaced with the internal machines ip addressed and forwarded to
the internal machine on ports 137 to 139.
Okay, I'm assuming here that you have portfw compiled into the kernel, or
available as a module, and that you have ipmasqadm installed.
ipmasqadm portfw -a -P tcp -L external.ip 20137 -R internal.ip 137
ipmasqadm portfw -a -P tcp -L external.ip 20139 -R internal.ip 139
...replacing external.ip and internal.ip with the obvious things :-)
Now this works for requests coming in - requests to port 20137 are rewritten
to port 137 and forwarded to the internal machine... I think you also want
something to rewrite the outgoing stuff from the internal machine using port
137 to 20137 as well, right?
This should do it:
ipmasqadm portfw -a -P tcp -L internal.ip 137 -R external.ip 20137
ipmasqadm portfw -a -P tcp -L internal.ip 139 -R external.ip 20139
...again replacing internal.ip and external.ip with the obvious. However, this
time you want to use the internal.ip of the masquerading machine (I think, try
it both ways).
If Samba needs UDP as well (I don't think it does...) then double up the
entries, replacing 'tcp' with 'udp' for the second ones.
I haven't actually tried this, but it should work fine. Let me know...
--
Matthew Gregan [EMAIL PROTECTED]
