1-to-1 NAT question

Forum|Forum|6 years ago
June 1, 2020
3 replies
3036 views

Hello,

We have configured 1-to-1 NAT, but there are a few ports we would still like to block. Would I be correct in that the process for doing this would be:

[ol]

Leave the current 1-to-1 NAT rule in place

Create additional port forward rules that DENY the ports we want to block

Add these ports to a new IPv4 Policy that is higher up (and therefore matched first) than the policy for the 1-to-1 NAT?[/ol]

Thanks, in advance, for your insight!

Toshi_Esumi

SuperUser

Why do you need No.2? You just want only the rest of ports access to follow the current out-to-in (or in-to-out) NAT rule, right? You can simply deny traffic coming in for those specific ports with No.3.

emnoc

New Member

The vip is one part the access rule controls the traffic, can you share what you did since you mention 1-to-1 nat and then port-forward in the same breath so it's confusing what you actually did.

Also keep in mind that fwpolicy ordering of the sequence plays a very very important factor in matching the NAT.

Ken Felix

Toshi_Esumi

SuperUser

Yea, you probably need it. Without the vip, FGT can't determine the outgoing port.

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