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Session Report

Summary:
Test run at: 2021-12-11 16:36:15 GMT
Client Prefix (v4): 88.221.209.x/24
Client AS (v4): 12222 (AKAMAI)
IPv4 Probes: 66
Client Prefix (v6): 2001:4878:82xx::/40
Client AS (v6): 12222 (AKAMAI)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /8/16
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.

Warnings:

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 (88.221.209.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
88.221.209.x/24/3112222yes
88.221.209.x/24/3012222yes
88.221.209.x/24/2912222yes
88.221.209.x/24/2812222yes
88.221.209.x/24/2712222yes
88.221.209.x/24/2612222yes
88.221.209.x/24/2512222yes
88.221.209.x/24/2412222yes
88.221.208.x/24/2312222yes
88.221.211.x/24/2220940yes
88.221.213.x/24/2120940yes
88.221.217.x/24/2020940yes
88.221.193.x/24/1920940yes
88.221.241.x/24/1820940yes
88.221.145.x/24/1720940yes
88.221.81.x/24/1621342yes
88.220.209.x/24/1520804yes
88.223.209.x/24/1424852yes
88.217.209.x/24/138767yes
88.213.209.x/24/12212652yes
88.205.209.x/24/1112389yes
88.253.209.x/24/109121yes
88.157.209.x/24/92860yes
88.93.209.x/24/82119yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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 able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:4878:82xx::/40/12012222yes
2001:4878:82xx::/40/11212222yes
2001:4878:82xx::/40/10412222yes
2001:4878:82xx::/40/9612222yes
2001:4878:82xx::/40/8812222yes
2001:4878:82xx::/40/8012222yes
2001:4878:82xx::/40/7212222yes
2001:4878:82xx::/40/6412222yes
2001:4878:82xx::/40/5612222yes
2001:4878:82xx::/40/4812222yes
2001:4878:82xx::/40/40UNROUTEDyes
2001:4878:2xx::/40/3212222yes
2001:48f8:82xx::/40/2411232yes
2001:c878:82xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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