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Session Report

Summary:
Test run at: 2021-06-09 13:27:57 GMT
Client Prefix (v4): 187.17.188.x/24
Client AS (v4): 28264
IPv4 Probes: 66
Client Prefix (v6): 2804:130:2xx::/40
Client AS (v6): 28264
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedreceived
Largest spoofable neighbor prefix length none/24
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 (187.17.188.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
187.17.188.x/24/3128264no
187.17.188.x/24/3028264no
187.17.188.x/24/2928264no
187.17.188.x/24/2828264no
187.17.188.x/24/2728264no
187.17.188.x/24/2628264no
187.17.188.x/24/2528264no
187.17.188.x/24/2428264no
187.17.189.x/24/2328264no
187.17.190.x/24/2228264no
187.17.184.x/24/2128264no
187.17.180.x/24/2028264no
187.17.172.x/24/1928263no
187.17.156.x/24/1828279no
187.17.252.x/24/1728201no
187.17.60.x/24/16262801no
187.16.188.x/24/1528258no
187.19.188.x/24/1428126no
187.21.188.x/24/1328573no
187.25.188.x/24/1222085no
187.1.188.x/24/1121574no
187.49.188.x/24/10269973no
187.81.188.x/24/926615no
187.145.188.x/24/88151no

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::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::247yes
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: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:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c: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: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
2804:130:2xx::/40/12028264yes
2804:130:2xx::/40/11228264yes
2804:130:2xx::/40/10428264yes
2804:130:2xx::/40/9628264yes
2804:130:2xx::/40/8828264yes
2804:130:2xx::/40/8028264yes
2804:130:2xx::/40/7228264yes
2804:130:2xx::/40/6428264yes
2804:130:2xx::/40/5628264yes
2804:130:2xx::/40/4828264yes
2804:130:2xx::/40/4028264yes
2804:130:82xx::/40/3228264yes
2804:1b0:2xx::/40/2418881yes
2804:8130:2xx::/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
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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