Reverse NAT/Intercepting Proxy Detection
info Nessus Plugin ID 31422
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Synopsis
The remote IP address seems to connect to different hosts via reverse NAT, or an intercepting proxy is in the way.Description
Reverse NAT is a technology which lets multiple computers offer public services on different ports via the same IP address.Based on OS fingerprinting results, it seems that different operating systems are listening on different remote ports.
Note that this behavior may also indicate the presence of a intercepting proxy, a load balancer or a traffic shaper.
Solution
Make sure that this setup is authorized by your security policySee Also
https://en.wikipedia.org/wiki/Proxy_server#Intercepting_proxy_server
Plugin Details
Severity: Info
ID: 31422
File Name: reverse_nat_detection.nasl
Version: 1.12
Type: remote
Family: Firewalls
Published: 3/12/2008
Updated: 11/22/2019
Asset Inventory: true
Risk Information
Risk Factor: Info