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Session Report

Summary:
Test run at: 2017-08-17 21:10:58 GMT
Client Prefix (v4): 85.145.222.x/24
Client AS (v4): 50266 (tmobile-thuis)
IPv4 Probes: 131
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 (85.145.222.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
85.145.222.x/24/3150266natblock
85.145.222.x/24/3050266natblock
85.145.222.x/24/2950266natblock
85.145.222.x/24/2850266natblock
85.145.222.x/24/2750266natblock
85.145.222.x/24/2650266natblock
85.145.222.x/24/2550266natblock
85.145.222.x/24/2450266natblock
85.145.223.x/24/2350266natblock
85.145.220.x/24/2250266natblock
85.145.218.x/24/2150266natblock
85.145.214.x/24/2050266natblock
85.145.206.x/24/1950266natblock
85.145.254.x/24/1850266natblock
85.145.158.x/24/1750266natblock
85.145.94.x/24/1650266natblock
85.144.222.x/24/1550266natblock
85.147.222.x/24/149143natblock
85.149.222.x/24/135390natblock
85.153.222.x/24/12UNROUTEDnatblock
85.129.222.x/24/1134397natblock
85.177.222.x/24/106805natblock
85.209.222.x/24/9UNROUTEDnatblock
85.17.222.x/24/860781natblock

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.

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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