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Session Report

Summary:
Test run at: 2017-10-16 15:30:25 GMT
Client Prefix (v4): 64.89.225.x/24
Client AS (v4): 17204 (AKAMAI-NOMINUM-ASN)
IPv4 Probes: 105
Client Prefix (v6): 2620:0:bxx::/40
Client AS (v6): 17204 (AKAMAI-NOMINUM-ASN)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /20/48

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 (64.89.225.x/24) can spoof 4095 neighboring addresses (within your /20 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
64.89.225.x/24/3117204yes
64.89.225.x/24/3017204yes
64.89.225.x/24/2917204yes
64.89.225.x/24/2817204yes
64.89.225.x/24/2717204yes
64.89.225.x/24/2617204yes
64.89.225.x/24/2517204yes
64.89.225.x/24/2417204yes
64.89.224.x/24/2317204yes
64.89.227.x/24/2217204yes
64.89.229.x/24/2117204yes
64.89.233.x/24/2017204yes

Meaning of status in Received column:

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 able to spoof routable, non-adjacent source addresses through the first 4 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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2620:0:bxx::/40/12017204yes
2620:0:bxx::/40/11217204yes
2620:0:bxx::/40/10417204yes
2620:0:bxx::/40/9617204yes
2620:0:bxx::/40/8817204yes
2620:0:bxx::/40/8017204yes
2620:0:bxx::/40/7217204yes
2620:0:bxx::/40/6417204yes
2620:0:bxx::/40/5617204yes
2620:0:bxx::/40/4817204yes

Meaning of status in Received column:

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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