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Session Report

Summary:
Test run at: 2019-12-13 14:17:42 GMT
Client Prefix (v4): 189.76.98.x/24
Client AS (v4): 11752
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 /20
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 (189.76.98.x/24) can spoof 4095 neighboring addresses (within your /20 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
189.76.98.x/24/3111752yes
189.76.98.x/24/3011752yes
189.76.98.x/24/2911752yes
189.76.98.x/24/2811752yes
189.76.98.x/24/2711752yes
189.76.98.x/24/2611752yes
189.76.98.x/24/2511752yes
189.76.98.x/24/2411752yes
189.76.99.x/24/2311752yes
189.76.96.x/24/2211752yes
189.76.102.x/24/2111752yes
189.76.106.x/24/2011752yes
189.76.114.x/24/1911752no
189.76.66.x/24/18UNROUTEDno
189.76.34.x/24/1722689no
189.76.226.x/24/1628360no
189.77.98.x/24/1526615no
189.78.98.x/24/1427699no
189.72.98.x/24/138167no
189.68.98.x/24/1227699no
189.92.98.x/24/1122085no
189.108.98.x/24/1010429no
189.12.98.x/24/97738no
189.204.98.x/24/828534no

Meaning of status in Received column:

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