Re: Port Forwarding FreeBSD 4.7_Release

[Matthew Ryan]

On Saturday, March 15, 2003, at 03:06  am, Bill Moran wrote:

Matthew Ryan wrote:
On Saturday, March 15, 2003, at 12:13  am, Lowell Gilbert wrote:
Fact is, natd _only_ redirects from the interface is was told to 
bind to.
I'm not exactly sure why the packets don't route out and back in 
when you
try it from inside, but they don't ;( so you always need to test it 
from
the external interface.


The reason they don't "route out" is that they are addressed to the
router, so it doesn't bother to forward them outside.
Ok, I understand, this does present me with a bit of a problem 
however, accessing my mail server from home for example. Can you 
think of a workaround?
I don't fully understand the question.  What exactly do you mean by
"from home"?  Is the mail server behind the firewall?  You can port
forward/reroute just about anything to anywhere, with enough time and
patience.  But there's not enough information in the statement you just
made for anyone to help you much.
sorry, i'll try to be more explicit. I have a number of services on 
ports forwarded from my external IP address to an internal IP address 
via NAT as we have discussed.

The problem is that I can not access these services from inside nat.

Example - My mail server address resolves to my external IP number. 
It's primarily a mobility issue.  From inside NAT I can't collect my 
mail unless I specifically point my browser at the internal IP number 
of my mail server. Yes I can get around this with some sort of client 
location manager or by connecting to the internet via a route other 
than my LAN, but none of these options are ideal.

I am hoping for a routing solution, and I am pleased to read your 
comforting words:

You can port forward/reroute just about anything to anywhere, with 
enough time and
patience.
Lowell Gilbert suggests running local DNS (thanks) but I have no 
experience of DNS and I had other areas of learning in mind for the 
moment.

Can anyone think of another solution?

Thanks again

Matthew Ryan

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