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Session Report

Summary:
Test run at: 2016-09-05 17:25:21 GMT
Client Prefix (v4): 62.28.205.x/24
Client AS (v4): 15525 (MEO-EMPRESAS)
IPv4 Probes: 88
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /16
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 (62.28.205.x/24) can spoof 65535 neighboring addresses (within your /16 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
62.28.205.x/24/3115525natblock
62.28.205.x/24/3015525natblock
62.28.205.x/24/2915525yes
62.28.205.x/24/2815525yes
62.28.205.x/24/2715525yes
62.28.205.x/24/2615525yes
62.28.205.x/24/2515525yes
62.28.205.x/24/2415525yes
62.28.204.x/24/2315525yes
62.28.207.x/24/2215525yes
62.28.201.x/24/2115525yes
62.28.197.x/24/2015525yes
62.28.221.x/24/1915525yes
62.28.237.x/24/1815525yes
62.28.141.x/24/1715525yes
62.28.77.x/24/1615525yes
62.29.205.x/24/155588natblock
62.30.205.x/24/145089natblock
62.24.205.x/24/1313285natblock
62.20.205.x/24/123301natblock
62.12.205.x/24/1115623natblock
62.60.205.x/24/10UNROUTEDnatblock
62.92.205.x/24/92119natblock
62.156.205.x/24/83320natblock

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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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