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Cisco Model 881 - Unable to NAT to web server

isaaczhun
Level 1
Level 1

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.

45 Replies 45

Hello Toshi,

Could you please help me solved my issue as well. My issue is

I am not able to connect to the public domain name of web server from

my internal office network.

But I have no problem connecting to this domain name from my home internet.

Please advise what could have gone wrong. Is there any configuration
settings required to allow this to work on my internal network?

I have pasted the Cisco router running configuration in case you need to reference as below. Thanks

Best Regards,

May Thu

.

Current configuration : 2445 bytes

!

! Last configuration change at 07:59:44 UTC Fri Jun 7 2013

!

version 15.0

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

no service password-recovery

!

hostname xxxxxx

!

boot-start-marker

boot-end-marker

!

enable password enable

!

no aaa new-model

!

!

!

memory-size iomem 10

!

!

ip source-route

!

!

ip dhcp excluded-address 192.168.12.1

!

ip dhcp pool lan

   network 192.168.10.0 255.255.255.0

   default-router 192.168.10.1

   dns-server 210.23.4.6 210.23.1.3

   lease infinite

!

ip dhcp pool VOICE-POOL

   import all

   network 192.168.11.0 255.255.255.0

   default-router 192.168.11.1

   dns-server 210.23.4.6 210.23.1.3

!

ip dhcp pool GUEST-POOL

   network 192.168.12.0 255.255.255.0

   default-router 192.168.12.1

   dns-server 210.23.4.6 210.23.1.3

!

!

ip cef

no ipv6 cef

!

!

multilink bundle-name authenticated

license udi pid CISCO881-SEC-K9 snxxxxxxxx

!

!

!

interface FastEthernet0

description AUTONONOMOUS AIR

switchport trunk allowed vlan 1,2,1002-1005

switchport mode trunk

!

!

interface FastEthernet1

description AUTONOMOUS

switchport access vlan 2

switchport trunk allowed vlan 1,2

!

!

interface FastEthernet2

description AUTONONOMOUS AIR

switchport trunk allowed vlan 1,2,1002-1005

switchport mode trunk

!

!

interface FastEthernet3

description GUEST VLAN

switchport access vlan 3

!

!

interface FastEthernet4

ip address dhcp

ip nat outside

ip virtual-reassembly

duplex full

speed 100

!

!

interface Vlan1

ip address 192.168.10.1 255.255.255.0

ip nat inside

ip virtual-reassembly

!

!

interface Vlan2

description VOICE VLAN

ip address 192.168.11.1 255.255.255.0

ip nat inside

ip virtual-reassembly

!

!

interface Vlan3

description GUEST VLAN

ip address 192.168.12.1 255.255.255.0

  ip nat inside

ip virtual-reassembly

!

!

ip forward-protocol nd

no ip http server

no ip http secure-server

!

!

no ip nat service sip udp port 5060

ip nat inside source list 1 interface FastEthernet4 overload

ip nat inside source static tcp 192.168.10.248 5500 interface FastEthernet4 5500

ip nat inside source static tcp 192.168.10.252 80 interface FastEthernet4 80

ip route 0.0.0.0 0.0.0.0 dhcp

!

access-list 1 permit 192.168.10.0 0.0.0.255

access-list 1 permit 192.168.11.0 0.0.0.255

access-list 1 permit 192.168.12.0 0.0.0.255

!

!

!

!

snmp-server community nwtngn RO

snmp-server ifindex persist

!

control-plane

!

!

!

line con 0

no modem enable

line aux 0

line vty 0 4

password enable

login

!

scheduler max-task-time 5000

end

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