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Session Report

Summary:
Test run at: 2017-06-12 10:39:12 GMT
Client Prefix (v4): 79.161.138.x/24
Client AS (v4): 29695 (Altibox_AS)
IPv4 Probes: 119
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8
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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
79.161.138.x/24/3129695yes
79.161.138.x/24/3029695yes
79.161.138.x/24/2929695yes
79.161.138.x/24/2829695yes
79.161.138.x/24/2729695yes
79.161.138.x/24/2629695yes
79.161.138.x/24/2529695yes
79.161.138.x/24/2429695yes
79.161.139.x/24/2329695yes
79.161.136.x/24/2229695yes
79.161.142.x/24/2129695yes
79.161.130.x/24/2029695yes
79.161.154.x/24/1929695yes
79.161.170.x/24/1829695yes
79.161.202.x/24/1729695yes
79.161.10.x/24/1629695yes
79.160.138.x/24/1529695yes
79.163.138.x/24/145617yes
79.165.138.x/24/138615yes
79.169.138.x/24/122860yes
79.177.138.x/24/118551yes
79.129.138.x/24/106799yes
79.225.138.x/24/93320yes
79.33.138.x/24/83269yes

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)

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).
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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