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Session Report

Summary:
Test run at: 2022-11-30 09:00:03 GMT
Client Prefix (v4): 147.75.33.x/24
Client AS (v4): 54825 (PACKET)
IPv4 Probes: 60
Client Prefix (v6): 2604:1380:20xx::/40
Client AS (v6): 54825 (PACKET)
IPv6 Probes: 52
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 /17/32
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 (147.75.33.x/24) can spoof 32767 neighboring addresses (within your /17 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
147.75.33.x/24/3154825yes
147.75.33.x/24/3054825yes
147.75.33.x/24/2954825yes
147.75.33.x/24/2854825yes
147.75.33.x/24/2754825yes
147.75.33.x/24/2654825yes
147.75.33.x/24/2554825yes
147.75.33.x/24/2454825yes
147.75.32.x/24/2354825yes
147.75.35.x/24/2254825yes
147.75.37.x/24/2154825yes
147.75.41.x/24/2054825yes
147.75.49.x/24/1954825yes
147.75.1.x/24/1833070no
147.75.97.x/24/1754825yes
147.75.161.x/24/1664266no
147.74.33.x/24/15385no
147.73.33.x/24/145050no
147.79.33.x/24/13UNROUTEDno
147.67.33.x/24/1242848no
147.91.33.x/24/1113092no
147.107.33.x/24/10UNROUTEDno
147.11.33.x/24/916920no
147.203.33.x/24/86130no

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 4 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
2604:1380:20xx::/40/12054825yes
2604:1380:20xx::/40/11254825yes
2604:1380:20xx::/40/10454825yes
2604:1380:20xx::/40/9654825yes
2604:1380:20xx::/40/8854825yes
2604:1380:20xx::/40/8054825yes
2604:1380:20xx::/40/7254825yes
2604:1380:20xx::/40/6454825yes
2604:1380:20xx::/40/5654825yes
2604:1380:20xx::/40/4854825yes
2604:1380:20xx::/40/4054825yes
2604:1380:a0xx::/40/32UNROUTEDyes
2604:1300:20xx::/40/243833no
2604:9380:20xx::/40/1633230no

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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