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Session Report

Summary:
Test run at: 2022-08-12 18:18:45 GMT
Client Prefix (v4): 148.202.15.x/24
Client AS (v4): 2549
IPv4 Probes: 60
Client Prefix (v6): 2001:1210:1xx::/40
Client AS (v6): 2549
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 /16/64
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 (148.202.15.x/24) can spoof 65535 neighboring addresses (within your /16 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
148.202.15.x/24/312549yes
148.202.15.x/24/302549yes
148.202.15.x/24/292549yes
148.202.15.x/24/282549yes
148.202.15.x/24/272549yes
148.202.15.x/24/262549yes
148.202.15.x/24/252549yes
148.202.15.x/24/242549yes
148.202.14.x/24/232549no
148.202.13.x/24/222549no
148.202.11.x/24/212549no
148.202.7.x/24/202549yes
148.202.31.x/24/192549no
148.202.47.x/24/182549no
148.202.79.x/24/172549no
148.202.143.x/24/162549yes
148.203.15.x/24/153810no
148.200.15.x/24/14UNROUTEDno
148.206.15.x/24/133596no
148.194.15.x/24/1218819no
148.218.15.x/24/1128477no
148.234.15.x/24/103454no
148.138.15.x/24/9UNROUTEDno
148.74.15.x/24/86128no

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
2001:1210:1xx::/40/1202549yes
2001:1210:1xx::/40/1122549yes
2001:1210:1xx::/40/1042549yes
2001:1210:1xx::/40/962549yes
2001:1210:1xx::/40/882549yes
2001:1210:1xx::/40/802549yes
2001:1210:1xx::/40/722549yes
2001:1210:1xx::/40/642549yes
2001:1210:1xx::/40/562549no
2001:1210:1xx::/40/482549no
2001:1210:1xx::/40/402549no
2001:1210:81xx::/40/322549no
2001:1290:1xx::/40/2416735no
2001:9210:1xx::/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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