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Session Report

Summary:
Test run at: 2017-11-14 10:45:49 GMT
Client Prefix (v4): 91.193.65.x/24
Client AS (v4): 42936 (SPX)
IPv4 Probes: 105
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
Routable received
Largest spoofable neighbor prefix length /8

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 (91.193.65.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
91.193.65.x/24/3142936yes
91.193.65.x/24/3042936yes
91.193.65.x/24/2942936yes
91.193.65.x/24/2842936yes
91.193.65.x/24/2742936yes
91.193.65.x/24/2642936yes
91.193.65.x/24/2542936yes
91.193.65.x/24/2442936yes
91.193.64.x/24/2342936yes
91.193.67.x/24/2242936yes
91.193.69.x/24/2142727yes
91.193.73.x/24/20198884yes
91.193.81.x/24/1942723yes
91.193.97.x/24/1833951yes
91.193.1.x/24/1731283yes
91.193.193.x/24/16UNROUTEDnatblock
91.192.65.x/24/1541329yes
91.195.65.x/24/14UNROUTEDnatblock
91.197.65.x/24/1335025yes
91.201.65.x/24/12UNROUTEDnatblock
91.209.65.x/24/1139264yes
91.225.65.x/24/1031683yes
91.129.65.x/24/91257yes
91.65.65.x/24/831334yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 16 IP hop(s).
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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