cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
566
Views
0
Helpful
2
Replies

how to NAT an outside network from the Inside network

logan-7
Level 1
Level 1

I have a Firewall,  with 3 interfaces,  One inside and 2 outside.  I need to hide the 2rd outside  Network from the Inside Network, and need to know how to write the NAT for this.

for a better explaination.  The Inside interface is 10.152.0.1/16, Outside interface 1 is 204.139.69.14 and Outside interface 2 is 192.168.0.1.

My network already uses the 192.168.0.0 network,  So I need to know how to hide this network from my inside network.

thanks

1 Accepted Solution

Accepted Solutions

Jennifer Halim
Cisco Employee
Cisco Employee

You can create static 1:1 network NAT for the whole 192.168.0.0/24 outside2 network.

You would need to NAT the whole network to a different unique network so it does not overlap with your inside 192.168.0.0/24 network.

Assuming that we are going to NAT it to 192.168.50.0/24 network:

static (outside2,inside) 192.168.50.0 192.168.0.0 netmask 255.255.255.0

From your internal network, you would need to access the corresponding ip address, for example:

If you need to access 192.168.0.10 (outside2) from the inside, you would need to connect to 192.168.50.10.

Hope that makes sense.

View solution in original post

2 Replies 2

Jennifer Halim
Cisco Employee
Cisco Employee

You can create static 1:1 network NAT for the whole 192.168.0.0/24 outside2 network.

You would need to NAT the whole network to a different unique network so it does not overlap with your inside 192.168.0.0/24 network.

Assuming that we are going to NAT it to 192.168.50.0/24 network:

static (outside2,inside) 192.168.50.0 192.168.0.0 netmask 255.255.255.0

From your internal network, you would need to access the corresponding ip address, for example:

If you need to access 192.168.0.10 (outside2) from the inside, you would need to connect to 192.168.50.10.

Hope that makes sense.

that seemed to do it

thanks

Review Cisco Networking products for a $25 gift card