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Session Report

Summary:
Test run at: 2021-06-14 16:50:51 GMT
Client Prefix (v4): 185.253.97.x/24
Client AS (v4): 9009 (M247)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
Largest spoofable neighbor prefix length none
Spoof status key
receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

Warnings:

IPv4 Adjacent Netblock Testing:

Your host (185.253.97.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.253.97.x/24/319009natblock
185.253.97.x/24/309009natblock
185.253.97.x/24/299009natblock
185.253.97.x/24/289009natblock
185.253.97.x/24/279009natblock
185.253.97.x/24/269009natblock
185.253.97.x/24/259009natblock
185.253.97.x/24/249009natblock
185.253.96.x/24/239009natblock
185.253.99.x/24/229009natblock
185.253.101.x/24/2112494natblock
185.253.105.x/24/2031444natblock
185.253.113.x/24/19204327natblock
185.253.65.x/24/1839507natblock
185.253.33.x/24/1729182natblock
185.253.225.x/24/1629119natblock
185.252.97.x/24/1549601natblock
185.255.97.x/24/14204057natblock
185.249.97.x/24/1342366natblock
185.245.97.x/24/1231400natblock
185.237.97.x/24/11204548natblock
185.221.97.x/24/10207155natblock
185.189.97.x/24/9UNROUTEDnatblock
185.125.97.x/24/8207045natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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