Port forwarding with cisco soho71 (800 series)

[jahlmer]

Hello world,

I have unfortunately spent too long trying to make functional a network configuration in my home. I cannot find the problem with this configuration that I have built from checking some very good and useful resources.

Here is my config:

Wirespeed DSL Router external IP: 1.2.3.4
Internal 192.168.1.254 / 24

Cisco Router external IP: 192.168.1.1 / 24
Internal 10.10.10.1

Wireless Router external IP: 10.10.10.2
Internal 10.0.0.254

Internal workstation IP: 10.0.0.4

I have configured port forwarding for HTTP and FTP traffic on DSL Router to 192.168.1.1. It is also configured on the Wireless Router to 10.0.0.4. The problem is the Cisco router. I am confident the problem lies within the Cisco router.

Here is my fully functional config (with the exception of the Port Forwarding!)

Current configuration : 677 bytes
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Router
!
!
ip subnet-zero
no ip domain-lookup
!
!
!
!
interface Ethernet0
ip address 10.10.10.1 255.255.255.0
ip nat inside
hold-queue 100 out
!
interface Ethernet1
ip address 192.168.1.1 255.255.255.0
ip nat outside
!
ip nat inside source list 1 interface Ethernet1 overload
ip nat inside source static tcp 10.10.10.2 80 192.168.1.1 80 extendable
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.1.254
no ip http server
!
!
access-list 1 permit 10.10.10.0 0.0.0.255
!
line con 0
stopbits 1
line vty 0 4
!
scheduler max-task-time 5000
end



If anyone out there had the patience and time to read this, I will really appreciate your advice.

Thank you!
aka Jahlmer

 

[pmesjar]

You are saying that you have problem, but - you don't explain what is the problem... And also can you explain your network setup so we will have more insight on how your network operate?

One more point - you are saying:
"Here is my fully functional config (with the exception of the Port Forwarding!)"
but I can see port forwarding configured:
"ip nat inside source static tcp 10.10.10.2 80 192.168.1.1 80 extendable"
???

Peter Mesjar
CCNP, A+ certified
pmesjar@centrum.sk

"The only true wisdom is in knowing you know nothing.

 

[jahlmer]

I apologize for not being clearer. The problem is that port forwarding is not working even though I have the above command is entered. I know I know, just thought I could get some help if it was a quick answer. Guess not. Anyways, I briefly explained my network setup as to not complicate the message. FYI (as if anyone does care) but I am MCSE NT4 and 2000, and have taken server/networking technical support phone calls for 5+ years with a TIER1 server OEM, and at the top of my team. But, that doesn't help me with this cisco router.

My network is this:

Internet > 1.2.3.4 DSL Modem 192.168.1.254 --> 192.168.1.1 Cisco Router 10.10.10.1 > 10.10.0.2 Wireless Router 10.0.0.254

And from there all workstations including 10.0.0.4 is on the wired and wireless network. 10.0.0.4 hosts a web site that works fine internally, but once you start using the internet IP to pull it up (ie, on the internet) it doesn't. Both the DSL router and the Wireless AP have web gui's and I have used them to forward port 80 to the other end of their internal networks. Is it a problem that 3 routers are port forwarding? Is there a technical reason why that wont work?

Any help would be appreciated.

 

[pmesjar]

> Is it a problem that 3 routers are port forwarding? Is there a technical reason why that wont work?

I can't think of any issue if it is configured correctly. To configure port forward on Cisco router I think this should do it for your setup:

ip nat inside source static tcp 10.0.0.4 80 192.168.1.1 80

interface Ethernet0
ip address 10.10.10.1 255.255.255.0
ip nat inside
interface Ethernet1
ip address 192.168.1.1 255.255.255.0
ip nat outside

If DSL modem is configured to port forward, make sure it is forwarding to address 192.168.1.1

Peter Mesjar
CCNP, A+ certified
pmesjar@centrum.sk

"The only true wisdom is in knowing you know nothing.