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Session Report

Summary:
Test run at: 2019-11-01 13:39:23 GMT
Client Prefix (v4): 149.20.66.x/24
Client AS (v4): 1280 (ISC-AS-1280)
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 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 (149.20.66.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
149.20.66.x/24/311280no
149.20.66.x/24/301280no
149.20.66.x/24/291280no
149.20.66.x/24/281280no
149.20.66.x/24/271280no
149.20.66.x/24/261280no
149.20.66.x/24/251280no
149.20.66.x/24/241280no
149.20.67.x/24/231280no
149.20.64.x/24/221280no
149.20.70.x/24/21UNROUTEDno
149.20.74.x/24/201280no
149.20.82.x/24/191280no
149.20.98.x/24/181280no
149.20.2.x/24/171280no
149.20.194.x/24/1613150no
149.21.66.x/24/1510599no
149.22.66.x/24/14UNROUTEDno
149.16.66.x/24/13174no
149.28.66.x/24/1220473no
149.4.66.x/24/1131822no
149.52.66.x/24/10174no
149.84.66.x/24/913513no
149.148.66.x/24/82494no

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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