Re: [Devil-Linux-discuss] port forwarding

[<tar...@r-...>]

Interesting... I would approach this problem by checking if DL is really =
the problem in this case. You can do that by connecting your computer on =
the network between your DSL "modem" (which I assume is a broadband =
router actually) and DL, on the 192.168.0.xxx subnet, and try to connect =
to the stream through DL via it's external IP (192.168.0.3). If that =
doesn't work try moving the server to the same network and subnet and =
try if you can access it from the internet through your DSL modem. In =
this way you can make sure the problem is really with DL and not with =
your DSL modem.

On the other hand there might be a problem with the firewall rules, for =
instance I'm not sure that ShoutCast servers are using TCP to stream =
media or it may be using TCP connections that don't work well in some =
NAT scenarios. May be worth to check that.

Also I would check what does this DSL "modem" really do. DSL modems (at =
least here in Hungary) are devices that interfaces with the DSL network =
and allows to initiate the connection via PPPoE. DSL routers are devices =
where you can connect some form of internet connection (Fixed IP, DHCP =
or PPPoE client) via its WAN ethernet interface and routing or NATing it =
to client machines on the internal network via it's internal ethernet =
interface. Of course there are lots of devices now that are combining =
some or more of these features for ex.
DSL interface routers or boadband routers with direct DSL connection so =
it is not straightforward what your device is capable doing not to =
mention that a lot depends on the internal software it is using.=20

And at last but not least it would be better if you'd sent DL's exact =
network configuration (IP's, subnet masks, gateway, etc.) to check =
there's no problem there.

Best regards:

George Tarnai

  ----- Original Message -----=20
  From: ross paskett=20
  To: dev...@li...=20
  Sent: Friday, April 07, 2006 8:58 PM
  Subject: [Devil-Linux-discuss] port forwarding


  I am running an internet server on my local network. The server =
streams media through: ip is 192.168.1.7 port 8007.  I have port =
forwarding setup in my firewall.rules file, and I have turned it on my =
DSL modem.  On my DSL modem, the rule is:
  Forward ports 8000-8010 to machine 192.168.0.3(devil linux), then =
devil linux should forward connections on port 8007 to =
192.168.1.7(internal radio server), but when I try to connect to my =
machine from the outside world, it can't.  I can connect and stream my =
music internally, from windows or mac, just not from the outside world.  =
Internally, I just connect to 192.168.1.7:8007 in winamp, and it plays =
my music.  can someone help?  below is the port forwarding section of my =
firewall.rules file.

  # Uncomment/modify the next 4 lines to forward a service to an =
internal IP.
  SERVER_IP=3D192.168.1.7   # Internal IP of server.
  PORT=3D8007               # 22 =3D SSH.  Change to 80 for web server, =
etc.
  ${IPTABLES} -A PREROUTING -i ${OUT_DEV} -t nat -p TCP --dport $PORT -j =
DNAT --to ${SERVER_IP}:${PORT}
  ${IPTABLES} -A FORWARD -p TCP -d ${SERVER_IP} --dport $PORT -i =
${OUT_DEV} -o ${INT_DEV} -j ACCEPT




-------------------------------------------------------------------------=
-----
  Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ =
countries) for 2=EF=BF=BD/min or less.


-------------------------------------------------------------------------=
-----
  Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great =
rates starting at 1=A2/min.