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NAT Advantages

luciano_rangel
Level 1
Level 1

What are the security advantages to make NAT between DMZ and inside??

Thanks a lot

4 Replies 4

JORGE RODRIGUEZ
Level 10
Level 10

One advantage is to hide your private IP scheme from external vendors connected to DMZ..

say your DMZ network is 172.16.1.0/24

and your inside is 192.168.1.0/24

DMZ vendor host 172.16.1.50 needs to access host on inside network 192.168.1.10 you can then use a 172.16.1.X address as NAT address for 192.168.1.10.. so DMZ will use 172.16.1.X to connect to 192.168.1.10 host.

Jorge Rodriguez

Excuse-me but did not mention that had this concept, we would like to know is if there is some other advantage such as attacks

Thanks for help

Luciano, in your original post you had asked What are the security advantages to make NAT between DMZ and inside?? I gave you an answer that is commonly use in DMZs..

but in your second post you are asking something different.. NAT is a function of address translation and nothing else, NAT does not save you from network attacks such ip spoofing or sync attacks.

If I still missunderstand your first and second question PLS correct me.

Regards

Jorge Rodriguez

luciano_rangel
Level 1
Level 1

It's all right, Thanks a lot.

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