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Session Report

Summary:
Test run at: 2017-09-13 03:07:02 GMT
Client Prefix (v4): 177.97.216.x/24
Client AS (v4): 18881
IPv4 Probes: 131
Client Prefix (v6): 2804:7f2:2axx::/40
Client AS (v6): 18881
IPv6 Probes: 85
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable rewrittenreceived
Largest spoofable neighbor prefix length none/16

Meaning of result status in column:

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.

Warnings:

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 (177.97.216.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.97.216.x/24/3118881rewritten
177.97.216.x/24/3018881rewritten
177.97.216.x/24/2918881rewritten
177.97.216.x/24/2818881rewritten
177.97.216.x/24/2718881rewritten
177.97.216.x/24/2618881rewritten
177.97.216.x/24/2518881rewritten
177.97.216.x/24/2418881rewritten
177.97.217.x/24/2318881rewritten
177.97.218.x/24/2218881rewritten
177.97.220.x/24/2118881rewritten
177.97.208.x/24/2018881rewritten
177.97.200.x/24/1918881rewritten
177.97.248.x/24/1818881rewritten
177.97.152.x/24/1718881rewritten
177.97.88.x/24/1618881rewritten
177.96.216.x/24/1518881rewritten
177.99.216.x/24/1418881rewritten
177.101.216.x/24/1325933rewritten
177.105.216.x/24/12262653rewritten
177.113.216.x/24/1126599rewritten
177.65.216.x/24/1028573rewritten
177.33.216.x/24/928573rewritten
177.225.216.x/24/8UNROUTEDrewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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).
IPv6 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.

  

  
IPv6 probes:
Spoofed source addressDestinationReceived
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:7f2:2axx::/40/12018881yes
2804:7f2:2axx::/40/11218881yes
2804:7f2:2axx::/40/10418881yes
2804:7f2:2axx::/40/9618881yes
2804:7f2:2axx::/40/8818881yes
2804:7f2:2axx::/40/8018881yes
2804:7f2:2axx::/40/7218881yes
2804:7f2:2axx::/40/6418881yes
2804:7f2:2axx::/40/5618881no
2804:7f2:2axx::/40/4818881no
2804:7f2:2axx::/40/4018881yes
2804:7f2:aaxx::/40/3218881yes
2804:772:2axx::/40/24UNROUTEDyes
2804:87f2:2axx::/40/16UNROUTEDyes

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)
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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