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Ricardo Castro
Ricardo Castro
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Help to 1to1 NAT Setup

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Hi!
I need to setup a internal IP to external IP.
Step 1.- From my ISP dealer, set a switch to ClearBox 300 (Has an IP 200.38.x.x) to eth0. Clearbox is running
Step 2.- From ClearBox, configure DHCP
Step 3.- From eth1 set a cable to another switch, so my computer that i want to have the public ip is connected to that switch
Step 4.- My computer is running with IP 192.168.4.114 (that´s the IP that DHCP set it). The computer has Internet
Step 5.- Set lease with that IP with its MAC Address
Step 6.- In 1-to-1 NAT set
Nickname web
Interface eth0
Public IP 200.38.x.x
Private IP 192.168.4.114
All Protocols and IP (x)
Protocol TCP
Add

Inmediatly the computer lost internet :_( and is not visible the public ip..
What is wrong? I think somehow firewall is blocking all internet traffic (i think) What should i do??

Thanks!!!
1-1 NAT Firewall
In 1-to-1 NAT
Thursday, September 29 2016, 07:55 PM
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Responses (4)

  • Accepted Answer

    Nick Howitt
    Nick Howitt
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    Friday, September 30 2016, 01:27 PM - #Permalink
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    Have you configured your WAN NIC with a different IP?
    Also, if you have an IP block, make sure you don't use the base address, ClearOS address or broadcast address in your 1-to-1 NAT. I think one address may also be a gateway address which you can't use either, so a block of 8 IP's only gives you 5 usable addresses. Someone is welcome to correct me here if I'm wrong as this is fringe memory.
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  • Accepted Answer

    Ricardo Castro
    Ricardo Castro
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    Thursday, September 29 2016, 10:49 PM - #Permalink
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    Nick Howitt wrote:

    Do you have more than one public IP?
    Do you want to host a specific app on your PC?


    Hi!

    I have more than one public IP; but any of them declared in Clearbox.
    Actually my idea is exactly that. I need to put three public IP's to three machines with three internal IP.
    I want to have something like this
    192.168.4.114 ->200.38.x.x
    192.168.4.115->200.38.x.y
    192.168.4.115->200.38.x.z

    The three machines are going to be server's, not just only http, also mysql, sftp, ssh, etc :_(
    Please, help :_(
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  • Accepted Answer

    Ricardo Castro
    Ricardo Castro
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    Thursday, September 29 2016, 10:35 PM - #Permalink
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    0 votes
    Hi!

    I have more than one public IP; but any of them declared in Clearbox.
    Actually my idea is exactly that. I need to put three public IP's to three machines with three internal IP.
    I want to have something like this
    192.168.4.114 ->200.38.x.x
    192.168.4.115->200.38.x.y
    192.168.4.115->200.38.x.z

    The three machines are going to be server's, not just only http, also mysql, sftp, ssh, etc :_(
    Please, help :_(
    The reply is currently minimized Show

  • Accepted Answer

    Nick Howitt
    Nick Howitt
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    Thursday, September 29 2016, 08:44 PM - #Permalink
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    Do you have more than one public IP?
    Do you want to host a specific app on your PC?
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