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Session Report

Summary:
Test run at: 2023-05-16 19:13:51 GMT
Client Prefix (v4): 107.152.10.x/24
Client AS (v4): 62523 (CIRBN-LLC)
IPv4 Probes: 60
Client Prefix (v6): 2605:59c8:15xx::/40
Client AS (v6): 14593 (SPACEX-STARLINK)
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 none/64
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 (107.152.10.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
107.152.10.x/24/3162523natblock
107.152.10.x/24/3062523natblock
107.152.10.x/24/2962523natblock
107.152.10.x/24/2862523natblock
107.152.10.x/24/2762523natblock
107.152.10.x/24/2662523natblock
107.152.10.x/24/2562523natblock
107.152.10.x/24/2462523natblock
107.152.11.x/24/2362523natblock
107.152.8.x/24/2262523natblock
107.152.14.x/24/2162523natblock
107.152.2.x/24/2062523natblock
107.152.26.x/24/1933011natblock
107.152.42.x/24/1811878natblock
107.152.74.x/24/171830natblock
107.152.138.x/24/16UNROUTEDnatblock
107.153.10.x/24/152514natblock
107.154.10.x/24/1419551natblock
107.156.10.x/24/1346375natblock
107.144.10.x/24/1233363natblock
107.136.10.x/24/117018natblock
107.184.10.x/24/1020001natblock
107.216.10.x/24/97018natblock
107.24.10.x/24/8UNROUTEDnatblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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 probes:
Spoofed source addressDestinationReceived
2001:48d0:101:501::1592001:40b0:7500:280::5458:517ano
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ano
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ano
fd11:1111:1111::11112001:40b0:7500:280::5458:517ano
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
2605:59c8:15xx::/40/12014593yes
2605:59c8:15xx::/40/11214593yes
2605:59c8:15xx::/40/10414593yes
2605:59c8:15xx::/40/9614593yes
2605:59c8:15xx::/40/8814593yes
2605:59c8:15xx::/40/8014593yes
2605:59c8:15xx::/40/7214593yes
2605:59c8:15xx::/40/6414593yes
2605:59c8:15xx::/40/5614593no
2605:59c8:15xx::/40/4814593no
2605:59c8:15xx::/40/4014593no
2605:59c8:95xx::/40/32UNROUTEDno
2605:5948:15xx::/40/24UNROUTEDno
2605:d9c8:15xx::/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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