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Session Report

Summary:
Test run at: 2021-11-20 23:27:48 GMT
Client Prefix (v4): 64.20.38.x/24
Client AS (v4): 19318 (IS-AS-1)
IPv4 Probes: 66
Client Prefix (v6): 2604:a00:xx::/40
Client AS (v6): 19318 (IS-AS-1)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable blockedreceived
Largest spoofable neighbor prefix length none/16
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 (64.20.38.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
64.20.38.x/24/3119318no
64.20.38.x/24/3019318no
64.20.38.x/24/2919318no
64.20.38.x/24/2819318no
64.20.38.x/24/2719318no
64.20.38.x/24/2619318no
64.20.38.x/24/2519318no
64.20.38.x/24/2419318no
64.20.39.x/24/2319318no
64.20.36.x/24/2219318no
64.20.34.x/24/2119318no
64.20.46.x/24/2019318no
64.20.54.x/24/1919318no
64.20.6.x/24/183257no
64.20.102.x/24/1716503no
64.20.166.x/24/1646887no
64.21.38.x/24/158001no
64.22.38.x/24/1421627no
64.16.38.x/24/137385no
64.28.38.x/24/1233227no
64.4.38.x/24/118075no
64.52.38.x/24/107029no
64.84.38.x/24/919893no
64.148.38.x/24/87018no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking

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::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:610:510:115:192:42:115:98yes
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:45a6yes
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:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2604:a00:xx::/40/12019318yes
2604:a00:xx::/40/11219318yes
2604:a00:xx::/40/10419318yes
2604:a00:xx::/40/9619318yes
2604:a00:xx::/40/8819318yes
2604:a00:xx::/40/8019318yes
2604:a00:xx::/40/7219318yes
2604:a00:xx::/40/6419318yes
2604:a00:xx::/40/5619318yes
2604:a00:xx::/40/4819318yes
2604:a00:xx::/40/4019318yes
2604:a00:80xx::/40/3219318yes
2604:a80:xx::/40/24UNROUTEDyes
2604:8a00:xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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