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Session Report

Summary:
Test run at: 2020-08-26 20:38:57 GMT
Client Prefix (v4): 213.152.173.x/24
Client AS (v4): 49453 (GLOBALLAYER)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
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.

IPv4 Adjacent Netblock Testing:

Your host (213.152.173.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
213.152.173.x/24/3149453natblock
213.152.173.x/24/3049453natblock
213.152.173.x/24/2949453natblock
213.152.173.x/24/2849453natblock
213.152.173.x/24/2749453natblock
213.152.173.x/24/2649453natblock
213.152.173.x/24/2549453natblock
213.152.173.x/24/2449453natblock
213.152.172.x/24/2349453natblock
213.152.175.x/24/2257172natblock
213.152.169.x/24/2149453natblock
213.152.165.x/24/2049453natblock
213.152.189.x/24/1949453natblock
213.152.141.x/24/1812976natblock
213.152.237.x/24/176461natblock
213.152.45.x/24/16206509natblock
213.153.173.x/24/1534984natblock
213.154.173.x/24/1420663natblock
213.156.173.x/24/13UNROUTEDnatblock
213.144.173.x/24/126762natblock
213.136.173.x/24/1115589natblock
213.184.173.x/24/1025233natblock
213.216.173.x/24/91273natblock
213.24.173.x/24/88342natblock

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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