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 From:  "Demetrios Savvides" <demetrios at w3 dot co dot za>
 To:  <m0n0wall at lists dot m0n0 dot ch>
 Subject:  Inbound NAT (port mapping)
 Date:  Thu, 26 Feb 2004 14:20:46 +0200
In the Inbound NAT , I have tried to use no source port but,
If I do not specify a source port M0n0wall spits out this error:

 -- The field 'Start port' is required. --

What now ?

Demetrios Savvides 

 Do not use source port 80
-----Ursprungligt meddelande-----
Från: Demetrios Savvides [mailto:demetrios at w3 dot co dot za] 
Skickat: den 26 februari 2004 12:56
Till: m0n0wall at lists dot m0n0 dot ch
Ämne: [m0n0wall] Inbound NAT (port mapping) 
I have not had a problem before the NAT was changed in  previous
however, now I seem to have a problem.

I have changed the GUI port to 81

I am using dynamic DNS to update the host to the new IP each time I

The m0n0wall WAN connection is a PPPoE connection and I am assignd a
different IP each time.

The LAN IP is
I have a machine inside the lan ( running a web server.

All this works... 

Here is my problem:

I have added a firewall rule to allow to on port 80
(TCP/UDP) on the WAN interface.
In Inbound NAT I have added a rule :
Proto: (TCP/UDP)
source port 80
destination IP :
destination port : 80

But when trying to access the web server (site) from outside (WAN side)
it does not come up.

Can anyone tell me what I am doing wrong?

Demetrios Savvides