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Session Report

Summary:
Test run at: 2021-02-14 20:40:03 GMT
Client Prefix (v4): 177.73.36.x/24
Client AS (v4): 52694
IPv4 Probes: 66
Client Prefix (v6): 2804:c58:xx::/40
Client AS (v6): 52694
IPv6 Probes: 56
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 /27/64

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 (177.73.36.x/24) can spoof 31 neighboring addresses (within your /27 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.73.36.x/24/3152694yes
177.73.36.x/24/3052694yes
177.73.36.x/24/2952694yes
177.73.36.x/24/2852694yes
177.73.36.x/24/2752694yes
177.73.36.x/24/2652694no
177.73.36.x/24/2552694no
177.73.36.x/24/2452694no
177.73.37.x/24/2352694no
177.73.38.x/24/2252694no
177.73.32.x/24/2153025no
177.73.44.x/24/2052696no
177.73.52.x/24/19262565no
177.73.4.x/24/1853184no
177.73.100.x/24/17262567no
177.73.164.x/24/16262571no
177.72.36.x/24/15262540no
177.75.36.x/24/14262808no
177.77.36.x/24/1326599no
177.65.36.x/24/1228573no
177.89.36.x/24/1128220no
177.105.36.x/24/1052853no
177.9.36.x/24/927699no
177.201.36.x/24/88167no

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::1592001:630:212:225:225:90ff: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::1592001:770:18:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:c58:xx::/40/12052694yes
2804:c58:xx::/40/11252694yes
2804:c58:xx::/40/10452694yes
2804:c58:xx::/40/9652694yes
2804:c58:xx::/40/8852694yes
2804:c58:xx::/40/8052694yes
2804:c58:xx::/40/7252694yes
2804:c58:xx::/40/6452694yes
2804:c58:xx::/40/5652694no
2804:c58:xx::/40/4852694no
2804:c58:xx::/40/4052694no
2804:c58:80xx::/40/3252694no
2804:cd8:xx::/40/2452559no
2804:8c58: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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