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Session Report

Summary:
Test run at: 2021-09-20 20:47:54 GMT
Client Prefix (v4): 193.239.72.x/24
Client AS (v4): 35297 (DATALINE-AS)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /24

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 (193.239.72.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
193.239.72.x/24/3135297yes
193.239.72.x/24/3035297yes
193.239.72.x/24/2935297yes
193.239.72.x/24/2835297yes
193.239.72.x/24/2735297yes
193.239.72.x/24/2635297yes
193.239.72.x/24/2535297yes
193.239.72.x/24/2435297yes
193.239.73.x/24/2335297no
193.239.74.x/24/2235297no
193.239.76.x/24/21201080no
193.239.64.x/24/208614no
193.239.88.x/24/1925542no
193.239.104.x/24/1825394no
193.239.8.x/24/17UNROUTEDno
193.239.200.x/24/163303no
193.238.72.x/24/15196767no
193.237.72.x/24/145378no
193.235.72.x/24/13UNROUTEDno
193.231.72.x/24/1234808no
193.255.72.x/24/118517no
193.207.72.x/24/108612no
193.175.72.x/24/9680no
193.111.72.x/24/821473no

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 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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