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Session Report

Summary:
Test run at: 2017-05-26 14:11:05 GMT
Client Prefix (v4): 143.53.30.x/24
Client AS (v4): 786 (JANET)
IPv4 Probes: 118
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 (143.53.30.x/24) can spoof 65535 neighboring addresses (within your /16 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
143.53.30.x/24/31786yes
143.53.30.x/24/30786yes
143.53.30.x/24/29786yes
143.53.30.x/24/28786yes
143.53.30.x/24/27786yes
143.53.30.x/24/26786yes
143.53.30.x/24/25786yes
143.53.30.x/24/24786yes
143.53.31.x/24/23786yes
143.53.28.x/24/22786yes
143.53.26.x/24/21786yes
143.53.22.x/24/20786yes
143.53.14.x/24/19786yes
143.53.62.x/24/18786yes
143.53.94.x/24/17786yes
143.53.158.x/24/16786yes
143.52.30.x/24/15786no
143.55.30.x/24/1423341no
143.49.30.x/24/13UNROUTEDno
143.61.30.x/24/12UNROUTEDno
143.37.30.x/24/1111003no
143.21.30.x/24/1011003no
143.117.30.x/24/9786no
143.181.30.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

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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