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Need help for port forwarding
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Topic: Need help for port forwarding (Read 10656 times)
ulim
Jr. Member
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Posts: 1
Need help for port forwarding
«
on:
Monday 23 November 2009, 08:56:07 pm »
Hello,
although I have some experience with diverse firewalls, I am a newbie to the Endian firewall. I try to set a 2.3.0 Endian as a firewall for a webserver, but I cannot get it running.
I have set up the following test environment:
Green: Webserver 192.168.100.40 / 16
Red (for testing): 1.110.110.1 / 24
My test PC: 1.110.110.2 /24
When allowing system access from the RED, I can connect to the Endian from Test PC to 1.110.110.1:10443. So, I assume my 1.110.110.1/24 sub net is working. The webserver PC can also connect to the Endian.
I tried the following:
Firewall -> Dest.Nat:
Access from: Uplink main (RED)
Target: Uplink main (RED)
Filter: Allow
Service: http (TCP/80)
DNAT Policy: NAT
Translate to: 192.168.100.40, Port 80
When looking in the firewall log, it says:
Firewall
2009-11-23 10:37:15
PORTFWACCESS:ACCEPT:1 TCP (eth1) 1.110.110.2:50348 -> 192.168.100.40:80 (br0)
However, the test PC cannot establish a connection:
Verbindungsaufbau 1.110.110.1 .. Es konnte keine Verbindung mit dem Hoste hergestellt werden..
Question:
Why does the port forwarding not work?
- do I need an additional route (e.g. static?) to 192.168.100.40?
- do I need some rules for allowing the connection request to be answered?
BTW, the Endian doesnt answer a ping on the RED. I suspect this is on purpose for security reasons, but I would like to see the ping. How can I enable it?
Thanks very much,
Uli
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glynd
Full Member
Offline
Posts: 10
Re: Need help for port forwarding
«
Reply #1 on:
Wednesday 25 November 2009, 05:01:41 pm »
Hello Ulim,
I have the same problem after setting up in the same manner. Did you get any resolution to this?
One thing I have found is that if I enable the proxy ( I m using for SMTP) then mail is delivered correctly but a telnet on port 25 to the red interface from outside, replies with the EFW smtp server.
I too have worked with other firewalls and some of them seem to be configured backwards. What I mean is that the destination interface is actually the public (or Red in EFW parlance) rather than the Red being the source. I haven't tried this but maybe we have it backwards in our minds...
Let me know if you come right
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glynd
Full Member
Offline
Posts: 10
Re: Need help for port forwarding
«
Reply #2 on:
Wednesday 25 November 2009, 05:55:18 pm »
The answer to how it works is in the thread
http://efwsupport.com/index.php?topic=1064.0
I have tried it and it works although I am not really following the rationale behind it.
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