Evening... (or morning...)
I can no longer tell!! Once again I'm faced with the issue of tunneling
through my router to get to my Vncserver box. (At one point I thought this
was working. I rebuilt the Linux box, but this wouldn't/shouldn't have
affected the router.)
The Setup:
+----------------+
| External World |
+----------------+
^
|(12.222.33.11)
v
+-----------------+
| Firewall/Router | (198.222.33.1)
| (Linksys) |<--------------+
+-----------------+ |
| (Internal Network)
|
v
+------------------------------------------+
| |
| |
v v
+--------------+ +---------------+
| | | |
| Linux Box | (192.222.33.4) | Windows 2K Box|
(192.222.33.5)
| (VNCServer) | | (VNC Client) |
| | | (PuTTY) |
+--------------+ | |
+---------------+
In keeping things simple, I decided to make sure I could use a Putty client
to get to the Linux box. In the above scenario, I'm able to get to the Linux
box from the Windows box with no problem. Using PuTTY, and staying within
the Firewall, I'm able to hit the Linux box and log in ok. (Putty's default
settings are used.)
When I attempt to use the PuTTY client from the Windows Box, and hit the
Linux box by going through the router, I have an issue. Within the Putty, I
use the external address of the Router. I have the port forwarding set so
that port 22 is forwarded to port 22 of the Linux Box. I would have expected
this to work! However, PuTTY times out. At this point, I'm still using the
default settings within Putty.
The default settings should be sufficient to allow this to work as I'm not
trying to perform anything unusual, especially given the fact that it works
if I hit the Linux box while inside the firewall!
My question: What might be preventing this from working?
The filter settings are:
SPI: Enable x Disable
Block WAN Request: Enable x Disable
Multicast Pass Through: x Enable Disable
IPSec Pass Through: x Enable Disable
PPTP Pass Through: x Enable Disable
Remote Management: Enable x Disable
Remote Upgrade: Enable x Disable
MTU: x Enable Disable
My ultimate goal is to once and for all, get the router/VNC/PuTTY all
working to provide SSH access to the VNCServer on the Linux box from outside
the Firewall.
Thanks...
-Bruce
(PS. I've spent a great deal of time trying to track down information
relating to this issue on the 'net. I also looked through some of the past
VNC archives. I thought I had seen information relating to what I'm
experiencing, but I can't seem to find it now....)
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