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Session Report

Summary:
Test run at: 2022-05-25 17:01:28 GMT
Client Prefix (v4): 41.191.101.x/24
Client AS (v4): 37089 (ALINK-CM-AS)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8
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 (41.191.101.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
41.191.101.x/24/3137089yes
41.191.101.x/24/3037089yes
41.191.101.x/24/2937089yes
41.191.101.x/24/2837089yes
41.191.101.x/24/2737089yes
41.191.101.x/24/2637089yes
41.191.101.x/24/2537089yes
41.191.101.x/24/2437089yes
41.191.100.x/24/23UNROUTEDno
41.191.103.x/24/2237089no
41.191.97.x/24/2137087yes
41.191.109.x/24/2036974yes
41.191.117.x/24/1937185yes
41.191.69.x/24/1837190yes
41.191.37.x/24/1736974yes
41.191.229.x/24/1630844yes
41.190.101.x/24/1536999yes
41.189.101.x/24/1436974yes
41.187.101.x/24/1320928yes
41.183.101.x/24/1237028yes
41.175.101.x/24/1130844yes
41.159.101.x/24/1016058yes
41.255.101.x/24/921003yes
41.63.101.x/24/837277yes

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
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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