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Session Report

Summary:
Test run at: 2022-05-26 18:23:57 GMT
Client Prefix (v4): 192.141.172.x/24
Client AS (v4): 267490
IPv4 Probes: 60
Client Prefix (v6): 2804:4248:1xx::/40
Client AS (v6): 267490
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /22/32
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 (192.141.172.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
192.141.172.x/24/31267490yes
192.141.172.x/24/30267490yes
192.141.172.x/24/29267490yes
192.141.172.x/24/28267490yes
192.141.172.x/24/27267490no
192.141.172.x/24/26267490yes
192.141.172.x/24/25267490yes
192.141.172.x/24/24267490yes
192.141.173.x/24/23267490yes
192.141.174.x/24/22267490yes
192.141.168.x/24/2116629no
192.141.164.x/24/20265788no
192.141.188.x/24/19267494no
192.141.140.x/24/18267468no
192.141.236.x/24/17267483no
192.141.44.x/24/16265533no
192.140.172.x/24/15UNROUTEDno
192.143.172.x/24/1437611no
192.137.172.x/24/13UNROUTEDno
192.133.172.x/24/12UNROUTEDno
192.157.172.x/24/11UNROUTEDno
192.173.172.x/24/1014677no
192.205.172.x/24/9UNROUTEDno
192.13.172.x/24/8749no

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).
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 probes:
Spoofed source addressDestinationReceived
2001:48d0:101:501::1592001:48d0:101:501::242no
2001:4978:1fb:6400::d22001:48d0:101:501::242no
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
2001:48d0:101:501::1592001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:48d0:101:501::1592001:610:510:115:192:42:115:98no
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6no
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6no
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:48d0:101:501::1592001:770:1c:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:4248:1xx::/40/120267490yes
2804:4248:1xx::/40/112267490yes
2804:4248:1xx::/40/104267490yes
2804:4248:1xx::/40/96267490yes
2804:4248:1xx::/40/88267490yes
2804:4248:1xx::/40/80267490yes
2804:4248:1xx::/40/72267490yes
2804:4248:1xx::/40/64267490yes
2804:4248:1xx::/40/56267490yes
2804:4248:1xx::/40/48267490yes
2804:4248:1xx::/40/40267490yes
2804:4248:81xx::/40/32267490yes
2804:42c8:1xx::/40/24267526no
2804:c248:1xx::/40/16UNROUTEDno

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)
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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