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Session Report

Summary:
Test run at: 2016-08-31 14:28:14 GMT
Client Prefix (v4): 50.58.105.x/24
Client AS (v4): 4323 (CENTURYLINK-LEGACY-TWTC)
IPv4 Probes: 91
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 (50.58.105.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
50.58.105.x/24/314323sendto
50.58.105.x/24/304323sendto
50.58.105.x/24/294323sendto
50.58.105.x/24/284323sendto
50.58.105.x/24/274323sendto
50.58.105.x/24/264323sendto
50.58.105.x/24/254323sendto
50.58.105.x/24/243549sendto
50.58.104.x/24/234323sendto
50.58.107.x/24/224323sendto
50.58.109.x/24/214323sendto
50.58.97.x/24/204323sendto
50.58.121.x/24/194323sendto
50.58.73.x/24/184323sendto
50.58.41.x/24/173549sendto
50.58.233.x/24/164323sendto
50.59.105.x/24/1554571sendto
50.56.105.x/24/1419994sendto
50.62.105.x/24/1326496sendto
50.50.105.x/24/125650sendto
50.42.105.x/24/115650sendto
50.26.105.x/24/1019108sendto
50.122.105.x/24/95650sendto
50.186.105.x/24/87922sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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.
Last Modified