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Session Report

Summary:
Test run at: 2023-11-29 08:12:14 GMT
Client Prefix (v4): 137.63.159.x/24
Client AS (v4): 327687 (RENU)
IPv4 Probes: 69
Client Prefix (v6): 2c0f:f6d0:xx::/40
Client AS (v6): 327687 (RENU)
IPv6 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
Largest spoofable neighbor prefix length nonenone
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.

Warnings:

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 (137.63.159.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
137.63.159.x/24/31327687no
137.63.159.x/24/30327687no
137.63.159.x/24/29327687no
137.63.159.x/24/28327687no
137.63.159.x/24/27327687no
137.63.159.x/24/26327687no
137.63.159.x/24/25327687no
137.63.159.x/24/24327687no
137.63.158.x/24/23327687no
137.63.157.x/24/22327687no
137.63.155.x/24/21327687no
137.63.151.x/24/20327687no
137.63.143.x/24/19327687no
137.63.191.x/24/18327687no
137.63.223.x/24/17327687no
137.63.31.x/24/16UNROUTEDno
137.62.159.x/24/15UNROUTEDno
137.61.159.x/24/1415991no
137.59.159.x/24/13UNROUTEDno
137.55.159.x/24/12UNROUTEDno
137.47.159.x/24/1125400no
137.31.159.x/24/10UNROUTEDno
137.127.159.x/24/9749no
137.191.159.x/24/8UNROUTEDno

Meaning of status in Received column:

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

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).
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
2c0f:f6d0:xx::/40/120327687no
2c0f:f6d0:xx::/40/112327687no
2c0f:f6d0:xx::/40/104327687no
2c0f:f6d0:xx::/40/96327687no
2c0f:f6d0:xx::/40/88327687no
2c0f:f6d0:xx::/40/80327687no
2c0f:f6d0:xx::/40/72327687no
2c0f:f6d0:xx::/40/64327687no
2c0f:f6d0:xx::/40/56327687no
2c0f:f6d0:xx::/40/48327687no
2c0f:f6d0:xx::/40/40327687no
2c0f:f6d0:80xx::/40/32327687no
2c0f:f650:xx::/40/24UNROUTEDno
2c0f:76d0:xx::/40/16UNROUTEDno

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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