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Session Report

Summary:
Test run at: 2018-03-02 15:50:54 GMT
Client Prefix (v4): 147.235.48.x/24
Client AS (v4): 6810 (BEZEK)
IPv4 Probes: 102
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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.

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 (147.235.48.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
147.235.48.x/24/316810natblock
147.235.48.x/24/306810natblock
147.235.48.x/24/296810natblock
147.235.48.x/24/286810natblock
147.235.48.x/24/276810natblock
147.235.48.x/24/266810natblock
147.235.48.x/24/256810natblock
147.235.48.x/24/246810natblock
147.235.49.x/24/236810natblock
147.235.50.x/24/226810natblock
147.235.52.x/24/216810natblock
147.235.56.x/24/206810natblock
147.235.32.x/24/196810natblock
147.235.16.x/24/186810natblock
147.235.112.x/24/176810natblock
147.235.176.x/24/166810natblock
147.234.48.x/24/15UNROUTEDnatblock
147.233.48.x/24/14378natblock
147.239.48.x/24/131452natblock
147.227.48.x/24/12768natblock
147.251.48.x/24/112852natblock
147.203.48.x/24/106130natblock
147.171.48.x/24/91942natblock
147.107.48.x/24/8UNROUTEDnatblock

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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