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Session Report

Summary:
Test run at: 2018-06-08 09:28:16 GMT
Client Prefix (v4): 77.76.140.x/24
Client AS (v4): 31029 (M-REAL)
IPv4 Probes: 99
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /19

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.
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 (77.76.140.x/24) can spoof 8191 neighboring addresses (within your /19 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
77.76.140.x/24/3131029yes
77.76.140.x/24/3031029yes
77.76.140.x/24/2931029yes
77.76.140.x/24/2831029yes
77.76.140.x/24/2731029yes
77.76.140.x/24/2631029yes
77.76.140.x/24/2531029yes
77.76.140.x/24/2431029yes
77.76.141.x/24/2331029yes
77.76.142.x/24/2231029yes
77.76.136.x/24/21UNROUTEDno
77.76.132.x/24/2031029yes
77.76.156.x/24/1931029yes
77.76.172.x/24/18UNROUTEDno
77.76.204.x/24/17UNROUTEDno
77.76.12.x/24/16UNROUTEDno
77.77.140.x/24/15UNROUTEDno
77.78.140.x/24/14UNROUTEDno
77.72.140.x/24/13UNROUTEDno
77.68.140.x/24/12UNROUTEDno
77.92.140.x/24/11UNROUTEDno
77.108.140.x/24/10UNROUTEDno
77.12.140.x/24/9UNROUTEDno
77.204.140.x/24/8UNROUTEDno

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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