Home NAT LAB

Plazma

I was wondering if anyone could help/guide me in setting up a home NAT lab

I would like to configure static, dynamic, and PAT.

I have 1 router and 2 hosts.


the router has 2 ethernet interfaces 1 going to each hosts

host 1 would have a private ip address translated to a public IP

would host 2 also have that? or would host 2 have to be the public end..

am i going about it the wrong direction?

tech-airman

Plazma wrote:

I was wondering if anyone could help/guide me in setting up a home NAT lab

I would like to configure static, dynamic, and PAT.

I have 1 router and 2 hosts.


the router has 2 ethernet interfaces 1 going to each hosts

host 1 would have a private ip address translated to a public IP

would host 2 also have that? or would host 2 have to be the public end..

am i going about it the wrong direction?

Plazma,

You can do private to private NAT, e.g. 172.16.0.0 to and from 192.168.0.0.

Plazma

ok so i can do private to private, thats not a big deal

i guess im confused .. would i specify 2 different pools of addresses or 2 different static? I think the best thing would be for me to see a lab setup this way

tech-airman

Plazma wrote:

ok so i can do private to private, thats not a big deal

i guess im confused .. would i specify 2 different pools of addresses or 2 different static? I think the best thing would be for me to see a lab setup this way

Plazma,

It depends which kind of NAT you're trying to configure:

1. Static NAT
2. Dynamic NAT
3. PAT

The one that deals with "pools of addresses" would be the "Dynamic NAT." The one that deals with "2 different static" would be the "Static NAT."

Before you launch off into the lab, do you understand NAT technology in relation to the IP header of the packet?

nice343

how do you implement a techology when you don't have a full understanding of the technology?

My advice is to read more or watch some Cisco videos before you proceed. That will help you better than someone telling you where to type commands

Plazma

nice343 wrote:

how do you implement a techology when you don't have a full understanding of the technology?

My advice is to read more or watch some Cisco videos before you proceed. That will help you better than someone telling you where to type commands

i have a full understanding of it, i was just confused on some things.. I also have an understanding of the english language and proper speeling

tech-airman

Plazma wrote:

nice343 wrote:

how do you implement a techology when you don't have a full understanding of the technology?

My advice is to read more or watch some Cisco videos before you proceed. That will help you better than someone telling you where to type commands

i have a full understanding of it, i was just confused on some things.. I also have an understanding of the english language and proper speeling

Plazma,

Ok, so what happens to one or more of the fields within the IP header as it passes through a NAT router from inside local to inside global?

Plazma

well from inside local to inside global thats where an inside private address gets translated into a public address on the inside

Plazma

and i know PAT, port address translation uses port #'s to identify private addresses to the inside global address (many to one)

tech-airman

Plazma wrote:

well from inside local to inside global thats where an inside private address gets translated into a public address on the inside

Plazma,

Do a search for "IP Header" and tell me which specific field of the IP gets modified by NAT and how?

Plazma

Well from what I can gather from my notes, the source ip changes from the inside local to the inside global address (private address gets translated to a public address)

I think i was overcomplicating some things when a friend of mine was telling me how to setup a NAT lab, i think i have a clear understanding now