Outbound NAT

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L4 Transporter

Outbound NAT

I am getting the error "Mismatch static-ip address range between original address and translated address" when I try to create a corporate outbound NAT rule. The rule is as follows:

trust -> untrust -> src (10.0.0.0/8) -> dest(any) -> src trans static IP (x.x.x.x/32) bi-directional (no)

The inherent vice of capitalism is the unequal sharing of blessings; the inherent virtue of socialism is the equal sharing of miseries.

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Hi,

Static NAT is usually used for one-to-one addresses. Since your source is a /8 and destination /32, that can't work.

What you are probably trying to do is have your /8 network NAT to that single public address when goign to the internet, and to do that, you need dynamic NAT, not static NAT.

Your NAT translation object should look like this, but with the IP address configured. I can't do that on my firewall because the IP address of my internet facing interface is dynamic.

5-21-2012 11-42-00 AM.png

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Hi,

Static NAT is usually used for one-to-one addresses. Since your source is a /8 and destination /32, that can't work.

What you are probably trying to do is have your /8 network NAT to that single public address when goign to the internet, and to do that, you need dynamic NAT, not static NAT.

Your NAT translation object should look like this, but with the IP address configured. I can't do that on my firewall because the IP address of my internet facing interface is dynamic.

5-21-2012 11-42-00 AM.png

View solution in original post

Highlighted
L4 Transporter

Duh - Dynamic IP and port refers to the source - not destination. Just a little different then what I'm used to!

Thanks

The inherent vice of capitalism is the unequal sharing of blessings; the inherent virtue of socialism is the equal sharing of miseries.
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I know what you mean, terminology can be quite different from one manufacturer to the other.

Happy to hear you got it working, let me know if you have more questions.

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