alienvault openvas vulnerability scan shows non existing hosts in the reports

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ronald1965
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2019/09/12 05:02:22 (permalink)
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alienvault openvas vulnerability scan shows non existing hosts in the reports

Dear all,
 
When performing a vulnerability scan that scans hosts through our fortigate firewall it shows non existing hosts in te reports that do not appear when doing the same scan without traffic going through a fortigate firewall.
 
This is wat alienvault support had to say about it:
Looks like this issue is related with a firewall that is answering in all the ips
This is how the plugin works: 
Special IP packets are forged and sent with a little delay in between to the 
target IP. The responses are searched for a timestamps. If found, the timestamps are reported. 
 
How can I configure the fortigate D600 firewall so it does not interfere with these scans?
 
Best regards,
 
Ronald Verlaan
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