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Session Report

Summary:
Test run at: 2022-09-23 23:12:26 GMT
Client Prefix (v4): 94.126.239.x/24
Client AS (v4): 48070 (DSM-AS)
IPv4 Probes: 60
Client Prefix (v6): 2a11:5700:xx::/40
Client AS (v6): 48070 (DSM-AS)
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 /26/48
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 (94.126.239.x/24) can spoof 63 neighboring addresses (within your /26 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
94.126.239.x/24/3148070yes
94.126.239.x/24/3048070yes
94.126.239.x/24/2948070yes
94.126.239.x/24/2848070yes
94.126.239.x/24/2748070yes
94.126.239.x/24/2648070yes
94.126.239.x/24/2548070no
94.126.239.x/24/2448070no
94.126.238.x/24/2348070no
94.126.237.x/24/2248070no
94.126.235.x/24/2148070no
94.126.231.x/24/20197116no
94.126.255.x/24/1915576no
94.126.207.x/24/18UNROUTEDno
94.126.175.x/24/1733876no
94.126.111.x/24/16UNROUTEDno
94.127.239.x/24/1543279no
94.124.239.x/24/148723no
94.122.239.x/24/1312978no
94.118.239.x/24/1241012no
94.110.239.x/24/1147377no
94.94.239.x/24/103269no
94.62.239.x/24/912353no
94.254.239.x/24/839603no

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 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
2a11:5700:xx::/40/12048070yes
2a11:5700:xx::/40/11248070yes
2a11:5700:xx::/40/10448070yes
2a11:5700:xx::/40/9648070yes
2a11:5700:xx::/40/8848070yes
2a11:5700:xx::/40/8048070yes
2a11:5700:xx::/40/7248070yes
2a11:5700:xx::/40/6448070yes
2a11:5700:xx::/40/5648070yes
2a11:5700:xx::/40/4848070yes
2a11:5700:xx::/40/4048070no
2a11:5700:80xx::/40/3248070no
2a11:5780:xx::/40/24UNROUTEDno
2a11:d700:xx::/40/1661100no

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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