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Session Report

Summary:
Test run at: 2021-12-10 07:51:17 GMT
Client Prefix (v4): 217.178.128.x/24
Client AS (v4): 55391 (MF-NATIVE6-E)
IPv4 Probes: 66
Client Prefix (v6): 2409:10:8cxx::/40
Client AS (v6): 55391 (MF-NATIVE6-E)
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 none/56

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 (217.178.128.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
217.178.128.x/24/3155391natblock
217.178.128.x/24/3055391natblock
217.178.128.x/24/2955391natblock
217.178.128.x/24/2855391natblock
217.178.128.x/24/2755391natblock
217.178.128.x/24/2655391natblock
217.178.128.x/24/2555391natblock
217.178.128.x/24/2455391natblock
217.178.129.x/24/2355391natblock
217.178.130.x/24/2255391natblock
217.178.132.x/24/2155391natblock
217.178.136.x/24/2055391natblock
217.178.144.x/24/1955391natblock
217.178.160.x/24/1855391natblock
217.178.192.x/24/1755392natblock
217.178.0.x/24/1655391natblock
217.179.128.x/24/155503natblock
217.176.128.x/24/145503natblock
217.182.128.x/24/1316276natblock
217.186.128.x/24/126805natblock
217.162.128.x/24/116830natblock
217.146.128.x/24/1020676natblock
217.242.128.x/24/93320natblock
217.50.128.x/24/86805natblock

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::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::1592001:610:510:115:192:42:115:98no
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: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::1592001:770:1c:7:225:90ff:fe0c:acb4no
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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2409:10:8cxx::/40/12055391yes
2409:10:8cxx::/40/11255391yes
2409:10:8cxx::/40/10455391yes
2409:10:8cxx::/40/9655391yes
2409:10:8cxx::/40/8855391yes
2409:10:8cxx::/40/8055391yes
2409:10:8cxx::/40/7255391yes
2409:10:8cxx::/40/6455391yes
2409:10:8cxx::/40/5655391yes
2409:10:8cxx::/40/4855391no
2409:10:8cxx::/40/4055391no
2409:10:cxx::/40/3255391no
2409:90:8cxx::/40/24UNROUTEDno
2409:8010:8cxx::/40/169808no

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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