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Session Report

Summary:
Test run at: 2020-04-25 04:07:27 GMT
Client Prefix (v4): 177.190.148.x/24
Client AS (v4): 263461
IPv4 Probes: 75
Client Prefix (v6): 2804:122c:xx::/40
Client AS (v6): 263461
IPv6 Probes: 72
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 /22/32

Meaning of result status in column:

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 (177.190.148.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.190.148.x/24/31263461yes
177.190.148.x/24/30263461yes
177.190.148.x/24/29263461yes
177.190.148.x/24/28263461yes
177.190.148.x/24/27263461yes
177.190.148.x/24/26263461yes
177.190.148.x/24/25263461yes
177.190.148.x/24/24263461yes
177.190.149.x/24/23263461yes
177.190.150.x/24/22263461yes
177.190.144.x/24/21263456no
177.190.156.x/24/20263457no
177.190.132.x/24/19263455no
177.190.180.x/24/18262504no
177.190.212.x/24/17263313no
177.190.20.x/24/1628151no
177.191.148.x/24/1553006no
177.188.148.x/24/1427699no
177.186.148.x/24/1326615no
177.182.148.x/24/1228573no
177.174.148.x/24/1126599no
177.158.148.x/24/1018881no
177.254.148.x/24/927831no
177.62.148.x/24/826599no

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:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:48d0:101:501::1592607:f278:2:13:ba27:ebff:fe3f:b21eno
2001:4978:1fb:6400::d22607:f278:2:13:ba27:ebff:fe3f:b21eno
2001:49aa:111:aa00::112607:f278:2:13:ba27:ebff:fe3f:b21eno
fd11:1111:1111::11112607:f278:2:13:ba27:ebff:fe3f:b21eno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:122c:xx::/40/120263461yes
2804:122c:xx::/40/112263461yes
2804:122c:xx::/40/104263461yes
2804:122c:xx::/40/96263461yes
2804:122c:xx::/40/88263461yes
2804:122c:xx::/40/80263461yes
2804:122c:xx::/40/72263461yes
2804:122c:xx::/40/64263461yes
2804:122c:xx::/40/56263461yes
2804:122c:xx::/40/48263461yes
2804:122c:xx::/40/40263461yes
2804:122c:80xx::/40/32263461yes
2804:12ac:xx::/40/24263491no
2804:922c:xx::/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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