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Session Report

Summary:
Test run at: 2024-04-10 01:20:03 GMT
Client Prefix (v4): 87.251.76.x/24
Client AS (v4): 199785
IPv4 Probes: 66
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 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  

IPv4 Adjacent Netblock Testing:

Your host (87.251.76.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
87.251.76.x/24/31199785no
87.251.76.x/24/30199785no
87.251.76.x/24/29199785no
87.251.76.x/24/28199785no
87.251.76.x/24/27199785no
87.251.76.x/24/26199785no
87.251.76.x/24/25199785no
87.251.76.x/24/24199785no
87.251.77.x/24/23199785no
87.251.78.x/24/22199785no
87.251.72.x/24/2152000no
87.251.68.x/24/20210512no
87.251.92.x/24/1941187no
87.251.108.x/24/1812389no
87.251.12.x/24/17UNROUTEDno
87.251.204.x/24/1629518no
87.250.76.x/24/1525488no
87.249.76.x/24/1415641no
87.255.76.x/24/1343588no
87.243.76.x/24/12197214no
87.235.76.x/24/1112430no
87.219.76.x/24/1012479no
87.187.76.x/24/93320no
87.123.76.x/24/88881no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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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