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Session Report

Summary:
Test run at: 2021-02-12 19:49:52 GMT
Client Prefix (v4): 24.237.163.x/24
Client AS (v4): 8047 (GCI)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8
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 (24.237.163.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
24.237.163.x/24/318047yes
24.237.163.x/24/308047yes
24.237.163.x/24/298047yes
24.237.163.x/24/288047yes
24.237.163.x/24/278047yes
24.237.163.x/24/268047yes
24.237.163.x/24/258047yes
24.237.163.x/24/248047yes
24.237.162.x/24/238047yes
24.237.161.x/24/228047yes
24.237.167.x/24/218047yes
24.237.171.x/24/208047yes
24.237.179.x/24/198047yes
24.237.131.x/24/188047yes
24.237.227.x/24/178047yes
24.237.35.x/24/168047yes
24.236.163.x/24/1520115yes
24.239.163.x/24/147029yes
24.233.163.x/24/1330404yes
24.229.163.x/24/123737yes
24.253.163.x/24/1122773yes
24.205.163.x/24/1020115yes
24.173.163.x/24/933363yes
24.109.163.x/24/86327yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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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