InterVLAN no internet

[Mickster]

Hi Everyone

First and foremost, thanks for all the information gathered here. It is a big help.

I have encountered a problem to which I could not find an answer and thought I would ask you for some suggestions as this has been giving me grey hair the last few days.

This is a test setup I quickly put together in Packet Tracer trying to find the problem myself. Below the internal network behind R01 works fine but none of them have any internet connection.

I need a way to connect all my internal clients to the internet.

Am I correct in assuming this is done by NAT and if so, any pointers in how it is done?

Thanks in advance

[Deepak Kumar]

Hi,

I want to ask you few questions:

1. Where is NAT configured? Is it on router or Firewall?

If the NAT is configured on firewall then are you configured route on the firewall for all VLANs?

2. Is the NAT ACL applied for all VLANs?

Regards,

Deepak Kumar

[Georg Pauwen]

Hello,

configuring the below on your 'Firewall' router should be sufficient:

interface FastEthernet0/1

ip address 10.10.1.1 255.255.255.0

ip nat inside

!

interface FastEthernet0/0

ip address 217.116.xxx.56

ip nat outside

!

ip nat inside source list 1 interface FastEthernet0/0 overload

!

access-list 1 permit 10.10.0.0 0.0.255.255