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Beginner

1800 to ISP with DHCP

Folks, I need your help.

I am trying to setup a router to the ISP with DHCP and it just isn't working.  The goal is to eventually have a fog server on the inside managing IP's for 24 systems, but I can't even get the Ubuntu machine to ping the outside.  Please take a look at my setup and see what I am missing.  It shouldn't be that hard, but I am not seeing the error and could use some fresh eyes.

 

EDIT:  The image was made in Cisco Packet tracer to help illustrate what I am trying to accomplish.

 

Thank you,

Everyone's tags (3)
8 REPLIES 8
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VIP Collaborator

Re: 1800 to ISP with DHCP

Hello,

As your image showing to us, both interfaces are "down" state, how dhco is providing address for this interface?

 

Here you can found more information about " how to do "

 

https://learningnetwork.cisco.com/thread/134800

Jaderson Pessoa
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Beginner

Re: 1800 to ISP with DHCP

I just mapped it real quick on packet tracer as a visual aid.
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VIP Advisor

Re: 1800 to ISP with DHCP

Hi @DoubleTapNY 

 

Try this change:

 

ip nat inside source list 50 interface f0/0 overload

 

The interface to be overloaded must be that of exit to the ISP.

 

Regards

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Beginner

Re: 1800 to ISP with DHCP

Thank you for the suggestion.  I made the change, but no success.

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VIP Advisor

Re: 1800 to ISP with DHCP

Hi @DoubleTapNY 

 

Just to discard, have you disabled the firewall before trying the ping?
Sometimes the firewalls block the ping

 

After the change the settings look ok.
I suggest you check if there are any rules that prevent connectivity.

 

Regards

 

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Beginner

Re: 1800 to ISP with DHCP

Yes, I verified the firewall was disabled.  I've attached a screenshot.  Clockwise from the upper right:

- PC connects with IP, but no internet connectivity

- Firewall is down

- Interface Card settings on PC

- sh run on the router

 

Thank you all for the suggestions, please keep them coming.  I am spent, and will re-attack in the a.m.

Tap Tap

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VIP Mentor

Re: 1800 to ISP with DHCP

Hello,

 

actually, if this is a Packet Tracer project, post the project (.pkt) file, zip it first otherwise the system won't let you upload it...

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Beginner

Re: 1800 to ISP with DHCP

Nope not a packet tracer project, just a visual aid.