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Session Report

Summary:
Test run at: 2018-04-09 19:35:12 GMT
Client Prefix (v4): 137.110.64.x/24
Client AS (v4): 7377 (UCSD)
IPv4 Probes: 102
Client Prefix (v6): 2607:f720:fxx::/40
Client AS (v6): 7377 (UCSD)
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 (137.110.64.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
137.110.64.x/24/317377natblock
137.110.64.x/24/307377sendto
137.110.64.x/24/297377sendto
137.110.64.x/24/287377sendto
137.110.64.x/24/277377sendto
137.110.64.x/24/267377sendto
137.110.64.x/24/257377sendto
137.110.64.x/24/247377natblock
137.110.65.x/24/237377sendto
137.110.66.x/24/227377sendto
137.110.68.x/24/217377sendto
137.110.72.x/24/207377sendto
137.110.80.x/24/197377sendto
137.110.96.x/24/187377sendto
137.110.0.x/24/177377natblock
137.110.192.x/24/167377sendto
137.111.64.x/24/157575sendto
137.108.64.x/24/14786sendto
137.106.64.x/24/13UNROUTEDsendto
137.102.64.x/24/12UNROUTEDnatblock
137.126.64.x/24/11UNROUTEDsendto
137.78.64.x/24/10127natblock
137.46.64.x/24/9UNROUTEDnatblock
137.238.64.x/24/826462natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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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