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Session Report

Summary:
Test run at: 2020-09-17 11:51:04 GMT
Client Prefix (v4): 164.160.147.x/24
Client AS (v4): 328073 (Ion-Telecom-AS)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable blocked
Largest spoofable neighbor prefix length /27

Meaning of result status in column:

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 (164.160.147.x/24) can spoof 31 neighboring addresses (within your /27 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
164.160.147.x/24/31328073sendto
164.160.147.x/24/30328073sendto
164.160.147.x/24/29328073sendto
164.160.147.x/24/28328073sendto
164.160.147.x/24/27328073yes
164.160.147.x/24/26328073no
164.160.147.x/24/25328073no
164.160.147.x/24/24328073no
164.160.146.x/24/23328073no
164.160.145.x/24/22328073no
164.160.151.x/24/21328077no
164.160.155.x/24/20328078no
164.160.131.x/24/19328110no
164.160.179.x/24/18327750no
164.160.211.x/24/17UNROUTEDno
164.160.19.x/24/1637281no
164.161.147.x/24/152907no
164.162.147.x/24/1417676no
164.164.147.x/24/13UNROUTEDno
164.168.147.x/24/12UNROUTEDno
164.176.147.x/24/11UNROUTEDno
164.128.147.x/24/103303no
164.224.147.x/24/9UNROUTEDno
164.32.147.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)
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 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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