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Session Report

Summary:
Test run at: 2021-10-31 02:50:35 GMT
Client Prefix (v4): 203.159.70.x/24
Client AS (v4): 63528 (BKNIX-AS-AP)
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 (203.159.70.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
203.159.70.x/24/3163528no
203.159.70.x/24/3063528no
203.159.70.x/24/2963528no
203.159.70.x/24/2863528no
203.159.70.x/24/2763528no
203.159.70.x/24/2663528no
203.159.70.x/24/2563528no
203.159.70.x/24/2463528no
203.159.71.x/24/2363528no
203.159.68.x/24/22UNROUTEDno
203.159.66.x/24/2163528no
203.159.78.x/24/20137856no
203.159.86.x/24/1939855no
203.159.102.x/24/1817887no
203.159.6.x/24/174767no
203.159.198.x/24/164621no
203.158.70.x/24/15UNROUTEDno
203.157.70.x/24/149649no
203.155.70.x/24/137693no
203.151.70.x/24/124618no
203.143.70.x/24/1110105no
203.191.70.x/24/10UNROUTEDno
203.223.70.x/24/9UNROUTEDno
203.31.70.x/24/855365no

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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