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Session Report

Summary:
Test run at: 2023-04-28 16:22:54 GMT
Client Prefix (v4): 128.223.215.x/24
Client AS (v4): 3582 (UONET)
IPv4 Probes: 60
Client Prefix (v6): 2607:8400:20xx::/40
Client AS (v6): 3582 (UONET)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedunknown
Routable blockedunknown
Largest spoofable neighbor prefix length /24none
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 (128.223.215.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
128.223.215.x/24/313582yes
128.223.215.x/24/303582yes
128.223.215.x/24/293582yes
128.223.215.x/24/283582yes
128.223.215.x/24/273582yes
128.223.215.x/24/263582yes
128.223.215.x/24/253582yes
128.223.215.x/24/243582yes
128.223.214.x/24/233582no
128.223.213.x/24/223582no
128.223.211.x/24/213582no
128.223.223.x/24/203582no
128.223.199.x/24/193582no
128.223.247.x/24/183582no
128.223.151.x/24/173582no
128.223.87.x/24/163582no
128.222.215.x/24/15UNROUTEDno
128.221.215.x/24/1412257no
128.219.215.x/24/1350no
128.215.215.x/24/12UNROUTEDno
128.207.215.x/24/11UNROUTEDno
128.255.215.x/24/103676no
128.159.215.x/24/91843no
128.95.215.x/24/873no

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.
IPv6 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.

  

  
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2607:8400:20xx::/40/1203582no
2607:8400:20xx::/40/1123582no
2607:8400:20xx::/40/1043582no
2607:8400:20xx::/40/963582no
2607:8400:20xx::/40/883582no
2607:8400:20xx::/40/803582no
2607:8400:20xx::/40/723582no
2607:8400:20xx::/40/643582no
2607:8400:20xx::/40/563582no
2607:8400:20xx::/40/483582no
2607:8400:20xx::/40/403582no
2607:8400:a0xx::/40/323582no
2607:8480:20xx::/40/2422639no
2607:400:20xx::/40/1630583no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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