Cisco Model 881 - Unable to NAT to web server

[isaaczhun]

Hi,

I hope there any someone here can help me out.

Apparently the problem seems simple enough however I couldn't get it working. My router is being configured to access a web server in the network which is on port 80. However, port 80 is being used by my router's setup page. Therefore whenever I key in my public IP address, it will just immediately direct me to the router's page.

I have also tried opening up other ports like 5050 and set my web server to port 5050. Internally within the LAN itself everyone can access the web server with port 5050. However, going from public IP address with port 5050 doesn't work. Am I missing anything here?

All the firewalls are configured.

Thanks in advanced.

[Thotsaphon Lueangwattanaphong]

Hi,

  You need to see connections on your router when testing from the internet.  This is not correct, tcp xxx.xxx.xxx.xxx:5050 192.168.1.39:80  ---  

Pleast post "show running" here again. If it works with tcp/21 and tcp/1723. It should not be a problem with tcp/5050. 

Toshi 

[isaaczhun]

Hi Toshi,

Therefore I shouldn't be using the same internet connection as the server if that is what you mean?

[Thotsaphon Lueangwattanaphong]

Hi,

   If I open web browser or do telnet on my pc now, you should see connections. And you already did telnet or console to router to type "show ip nat trans" and "show access-l"  at the same time. Yes,I'm in the internet. This is what we want to test.

Post the result of command below

!

Router#telnet 192.168.1.39 5050 /source-interface fastether4

!

Toshi

[isaaczhun]

Hi Toshi,

I type in "! Router#telnet 192.168.1.39 5050 /source-interface fastether4 !"

however there is no result showing. Just like pressing enter again.

Result:

xxx10M#$net 192.168.1.39 5050 /source-interface fastether4!

xxx10M#

[Thotsaphon Lueangwattanaphong]

Hi,

    Please do this

xxx10M#telnet 192.168.1.39 5050 /source-interface fastether4

Toshi

[isaaczhun]

Hi Toshi,

I'm seeing my WAMP server stuff coming out

xxx10M#telnet 192.168.1.39 5050 /source-interface fastether4

Trying 192.168.1.39, 5050 ... Open

^C

        "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">

       

WAMP

PHP 5

Apache 2

MySQL 5

Version 2.1

Version Française

Server Configuration

Apache Version :

2.2.17

PHP Version :

5.3.5

Loaded Extensions :

Core

bcmath

calendar

com_dotnet

ctype

date

ereg

filter

ftp

hash

iconv

json

mcrypt

SPL

odbc

pcre

Reflection

session

standard

mysqlnd

tokenizer

zip

zlib

libxml

dom

PDO

Phar

SimpleXML

wddx

xml

xmlreader

xmlwriter

apache2handler

gd

mbstring

mysql

mysqli

pdo_mysql

pdo_sqlite

pdf

mhash

xdebug

MySQL Version :

5.5.8

Tools

phpinfo()

phpmyadmin

Your Projects

system

test

website

Your Aliases

phpmyadmin

sqlbuddy

webgrind

http://www.wampserver.com">WampServer

-

http://www.wampserver.com/en/donations.php">Donate

-

http://www.alterway.fr">Alter Way

[Connection to 192.168.1.39 closed by foreign host]

[Thotsaphon Lueangwattanaphong]

Hi,

   Okay. Please post the current running configuraion.

xxx10M#show running.

Toshi

[isaaczhun]

interface FastEthernet0

!

interface FastEthernet1

!

interface FastEthernet2

!

interface FastEthernet3

!

interface FastEthernet4

description 00062299sng$ES_WAN$

ip address xx.xx.xx.xx 255.255.255.252

ip nat outside

ip virtual-reassembly

duplex full

speed 100

!

interface Vlan1

description $ETH-SW-LAUNCH$$INTF-INFO-HWIC 4ESW$

ip address xx.xx.xx.xx 255.255.255.240 secondary

ip address 192.168.1.1 255.255.255.0

ip nat inside

ip virtual-reassembly

ip tcp adjust-mss 1452

!

ip forward-protocol nd

ip http server

ip http access-class 23

ip http authentication local

ip http secure-server

ip http timeout-policy idle 60 life 86400 requests 10000

!

ip dns server

ip nat inside source list 1 interface FastEthernet4 overload

ip nat inside source static tcp 192.168.1.39 21 interface FastEthernet4 21

ip nat inside source static tcp 192.168.1.201 1723 interface FastEthernet4 1723

ip nat inside source static tcp 192.168.1.39 5050 interface FastEthernet4 5050

ip route 0.0.0.0 0.0.0.0 xx.xx.xx.xx

!

access-list 1 permit 192.168.1.0 0.0.0.255

no cdp run

[Thotsaphon Lueangwattanaphong]

Hi,

  Okay , Just read your private message.

Toshi

[isaaczhun]

See reply.

[Thotsaphon Lueangwattanaphong]

Hi,

  I'm 100% sure that we cannot open connections to your router with tcp/5050. Then ask your ISP.  I'm 100% sure that you can use TCP/80(http) to connect to your web server.

  Please change the port on web server to TCP/80.  And we will test it.

Toshi

[isaaczhun]

Hi Toshi,

I have changed it to port 80 for the web server. However by typing the public ip address to the URL it is still going to the router setup page.

[Thotsaphon Lueangwattanaphong · Accepted solution]

Hi,

  No, Its not. I saw WampServer Apache Server 2.2.17.  It's working like a charm. Where are you testing from?

  Keep in mind you need to test when you're not in Local LAN 192.168.1.0/24 and you can access the internet.

Toshi

[isaaczhun]

Kept forgetting I'm on LAN.

If you saw it then it should be working fine.

Thanks for the help!

[Thotsaphon Lueangwattanaphong]

Hi,

   Hahaha....  It's okay

Toshi