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Session Report

Summary:
Test run at: 2023-09-30 12:47:17 GMT
Client Prefix (v4): 192.0.47.x/24
Client AS (v4): 16876 (ICANN-DC)
IPv4 Probes: 69
Client Prefix (v6): 2620:0:28xx::/40
Client AS (v6): 16876 (ICANN-DC)
IPv6 Probes: 60
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 nonenone
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 (192.0.47.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
192.0.47.x/24/3116876natblock
192.0.47.x/24/3016876natblock
192.0.47.x/24/2916876natblock
192.0.47.x/24/2816876natblock
192.0.47.x/24/2716876natblock
192.0.47.x/24/2616876natblock
192.0.47.x/24/2516876natblock
192.0.47.x/24/2416876natblock
192.0.46.x/24/2316876natblock
192.0.45.x/24/2216876natblock
192.0.43.x/24/2116876natblock
192.0.39.x/24/2026711natblock
192.0.63.x/24/1962659natblock
192.0.15.x/24/1811203natblock
192.0.111.x/24/172635natblock
192.0.175.x/24/165645natblock
192.1.47.x/24/15UNROUTEDnatblock
192.2.47.x/24/14UNROUTEDnatblock
192.4.47.x/24/13UNROUTEDnatblock
192.8.47.x/24/1236224natblock
192.16.47.x/24/11UNROUTEDnatblock
192.32.47.x/24/10UNROUTEDnatblock
192.64.47.x/24/9UNROUTEDnatblock
192.128.47.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::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
2620:0:28xx::/40/12016876no
2620:0:28xx::/40/11216876no
2620:0:28xx::/40/10416876no
2620:0:28xx::/40/9616876no
2620:0:28xx::/40/8816876no
2620:0:28xx::/40/8016876no
2620:0:28xx::/40/7216876no
2620:0:28xx::/40/6416876no
2620:0:28xx::/40/5616876no
2620:0:28xx::/40/4816876no
2620:0:28xx::/40/402936no
2620:0:a8xx::/40/32UNROUTEDno
2620:80:28xx::/40/24UNROUTEDno
2620:8000:28xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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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