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Session Report

Summary:
Test run at: 2021-03-11 11:37:43 GMT
Client Prefix (v4): 191.5.164.x/24
Client AS (v4): 263541
IPv4 Probes: 69
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8

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 (191.5.164.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
191.5.164.x/24/31263541yes
191.5.164.x/24/30263541yes
191.5.164.x/24/29263541yes
191.5.164.x/24/28263541yes
191.5.164.x/24/27263541yes
191.5.164.x/24/26263541yes
191.5.164.x/24/25263541yes
191.5.164.x/24/24263541yes
191.5.165.x/24/23263541yes
191.5.166.x/24/22263541yes
191.5.160.x/24/21263538yes
191.5.172.x/24/20263539yes
191.5.180.x/24/1953238yes
191.5.132.x/24/18263536yes
191.5.228.x/24/1752908yes
191.5.36.x/24/16263531yes
191.4.164.x/24/1519611yes
191.7.164.x/24/14263322yes
191.1.164.x/24/137738yes
191.13.164.x/24/1227699yes
191.21.164.x/24/1126599yes
191.37.164.x/24/10263363yes
191.69.164.x/24/926611yes
191.133.164.x/24/826615yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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 10 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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