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Session Report

Summary:
Test run at: 2020-12-12 14:10:29 GMT
Client Prefix (v4): 170.233.252.x/24
Client AS (v4): 265097
IPv4 Probes: 75
Client Prefix (v6): 2804:32c0:70xx::/40
Client AS (v6): 265097
IPv6 Probes: 68
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 (170.233.252.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
170.233.252.x/24/31265097natblock
170.233.252.x/24/30265097natblock
170.233.252.x/24/29265097natblock
170.233.252.x/24/28265097natblock
170.233.252.x/24/27265097natblock
170.233.252.x/24/26265097natblock
170.233.252.x/24/25265097natblock
170.233.252.x/24/24265097natblock
170.233.253.x/24/23265097natblock
170.233.254.x/24/22265097natblock
170.233.248.x/24/21265091natblock
170.233.244.x/24/2061920natblock
170.233.236.x/24/19265098natblock
170.233.220.x/24/18263912natblock
170.233.188.x/24/17265067natblock
170.233.124.x/24/16264737natblock
170.232.252.x/24/15UNROUTEDnatblock
170.235.252.x/24/1411534natblock
170.237.252.x/24/13UNROUTEDnatblock
170.225.252.x/24/12UNROUTEDnatblock
170.249.252.x/24/11393398natblock
170.201.252.x/24/1010995natblock
170.169.252.x/24/92134natblock
170.105.252.x/24/8UNROUTEDnatblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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::1592001:770:18:7:225:90ff:fe0c:acb4yes
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fyes
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fyes
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fyes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:32c0:70xx::/40/120265097yes
2804:32c0:70xx::/40/112265097yes
2804:32c0:70xx::/40/104265097yes
2804:32c0:70xx::/40/96265097yes
2804:32c0:70xx::/40/88265097yes
2804:32c0:70xx::/40/80265097yes
2804:32c0:70xx::/40/72265097yes
2804:32c0:70xx::/40/64265097yes
2804:32c0:70xx::/40/56265097yes
2804:32c0:70xx::/40/48265097yes
2804:32c0:70xx::/40/40265097yes
2804:32c0:f0xx::/40/32265097yes
2804:3240:70xx::/40/24UNROUTEDyes
2804:b2c0:70xx::/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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