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8.8

Mail server can not be accesed from outside through ADSL

Asked by niken_asterina in Miscellaneous Networking

Tags: 50214, 80, port

Hi experts, I have configure the outgoing connection through ADSL router, and there is no problem with it.
But, I have problem when I should configure Port Redirection Table.
I have Linux mail server that can be accessed from internet, via HTTP, SMTP and POP3.
But if I connect via ADSL, the mail server cannot be accessed from outside, even from HTTP. In my router ADSL, I configured port redirection for port 80., 25 and 110.
If I connect directly, mail server ok.
My ADSL WAN IP is 222.124.48.20
I use Linux Slackware 8.1 Kernel 2.4.18, with qmail-1.03, and squirrel mail-1.4.2 and Vigor 2500 ADSL router.

 When I check the configuration from internet 202.150.82.14, there is a report in Vigor ADSL router.

-------------------------------------------------------------------------------
     Private IP :Port #Pseudo Port         Peer IP :Port  Ifno  Status  
-------------------------------------------------------------------------------
   
    192.168.2.5    80           80   202.150.82.14 50437     3  0     when try access from internet
    192.168.2.5    80           80   202.150.82.14 50350     3  0    
    192.168.2.5    80           80   202.150.82.14 50214     3  0    
       
    192.168.2.5   110          110   202.150.82.14  1207     3  0   when try POP3 from outlook  

And from my Linux mail server, I typed netstat –n, the report :

Proto Recv-Q Send-Q Local Address           Foreign Address         State      
tcp        0      0 192.168.2.5:80          202.150.82.14:55460     SYN_RECV  

I’ve searched from internet to solve this problem, it seems the problem in my ADSL ISP.But I have to make sure the problem in their site, because they said that they  already redirected the IP. We can access internet http (go outside) from our LAN through ADSL router, Is it means that they open port 80 for http from outside to go to my mail server? Is there any setting that I should set in Linux, even if I connect directly form PC to my Linux mail server, it works properly?
I really appreciate for all of your help.

Best Regards,
Wardhana
[+][-]10/27/04 06:59 AM, ID: 12422263Accepted Solution

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About this solution

Zone: Miscellaneous Networking
Tags: 50214, 80, port
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Solution Provided By: fixnix
Participating Experts: 2
Solution Grade: A
 
[+][-]10/26/04 09:42 PM, ID: 12418551Expert Comment

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[+][-]10/29/04 01:07 AM, ID: 12442125Author Comment

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