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Session Report

Summary:
Test run at: 2017-09-17 13:34:00 GMT
Client Prefix (v4): 49.244.137.x/24
Client AS (v4): 23752 (NPTELECOM-NP-AS)
IPv4 Probes: 116
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 (49.244.137.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
49.244.137.x/24/3123752natblock
49.244.137.x/24/3023752natblock
49.244.137.x/24/2923752natblock
49.244.137.x/24/2823752natblock
49.244.137.x/24/2723752natblock
49.244.137.x/24/2623752natblock
49.244.137.x/24/2523752natblock
49.244.137.x/24/2423752natblock
49.244.136.x/24/2323752natblock
49.244.139.x/24/2223752natblock
49.244.141.x/24/2123752natblock
49.244.129.x/24/2023752natblock
49.244.153.x/24/1923752natblock
49.244.169.x/24/1823752natblock
49.244.201.x/24/1723752natblock
49.244.9.x/24/1623752natblock
49.245.137.x/24/154773natblock
49.246.137.x/24/1438735natblock
49.240.137.x/24/1310013natblock
49.252.137.x/24/1237903natblock
49.228.137.x/24/11133481natblock
49.212.137.x/24/109371natblock
49.180.137.x/24/94804natblock
49.116.137.x/24/84134natblock

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 able to spoof routable, non-adjacent source addresses through the first 1 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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