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Session Report

Summary:
Test run at: 2022-01-18 21:08:53 GMT
Client Prefix (v4): 185.43.249.x/24
Client AS (v4): 62206 (PITLINE-AS)
IPv4 Probes: 63
Client Prefix (v6): 2a01:7120:25xx::/40
Client AS (v6): 62206 (PITLINE-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 /30/64
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.
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)

IPv4 Adjacent Netblock Testing:

Your host (185.43.249.x/24) can spoof 3 neighboring addresses (within your /30 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.43.249.x/24/3162206yes
185.43.249.x/24/3062206yes
185.43.249.x/24/2962206no
185.43.249.x/24/2862206no
185.43.249.x/24/2762206no
185.43.249.x/24/2662206no
185.43.249.x/24/2562206no
185.43.249.x/24/2462206no
185.43.248.x/24/2362206no
185.43.251.x/24/2262206no
185.43.253.x/24/21200845no
185.43.241.x/24/20206379no
185.43.233.x/24/1939122no
185.43.217.x/24/1862227no
185.43.185.x/24/1729611no
185.43.121.x/24/1642540no
185.42.249.x/24/1515547no
185.41.249.x/24/1444600no
185.47.249.x/24/13201596no
185.35.249.x/24/1224867no
185.59.249.x/24/1144152no
185.11.249.x/24/1062095no
185.107.249.x/24/9204813no
185.171.249.x/24/812843no

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.
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
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
2a01:7120:25xx::/40/12062206yes
2a01:7120:25xx::/40/11262206yes
2a01:7120:25xx::/40/10462206yes
2a01:7120:25xx::/40/9662206yes
2a01:7120:25xx::/40/8862206yes
2a01:7120:25xx::/40/8062206yes
2a01:7120:25xx::/40/7262206yes
2a01:7120:25xx::/40/6462206yes
2a01:7120:25xx::/40/5662206no
2a01:7120:25xx::/40/4862206no
2a01:7120:25xx::/40/4062206no
2a01:7120:a5xx::/40/3262206no
2a01:71a0:25xx::/40/24208988no
2a01:f120:25xx::/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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