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Session Report

Summary:
Test run at: 2020-07-13 10:52:27 GMT
Client Prefix (v4): 194.230.158.x/24
Client AS (v4): 6730 (SUNRISE)
IPv4 Probes: 75
Client Prefix (v6): 2a00:c38:1xx::/40
Client AS (v6): 15576 (NTS)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable rewrittenblocked
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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
194.230.158.x/24/316730rewritten
194.230.158.x/24/306730rewritten
194.230.158.x/24/296730rewritten
194.230.158.x/24/286730rewritten
194.230.158.x/24/276730rewritten
194.230.158.x/24/266730rewritten
194.230.158.x/24/256730rewritten
194.230.158.x/24/246730rewritten
194.230.159.x/24/236730rewritten
194.230.156.x/24/226730rewritten
194.230.154.x/24/216730rewritten
194.230.150.x/24/206730rewritten
194.230.142.x/24/196730rewritten
194.230.190.x/24/186730rewritten
194.230.222.x/24/176730rewritten
194.230.30.x/24/166730rewritten
194.231.158.x/24/155669rewritten
194.228.158.x/24/145610rewritten
194.226.158.x/24/133253rewritten
194.238.158.x/24/125503rewritten
194.246.158.x/24/11UNROUTEDrewritten
194.198.158.x/24/10UNROUTEDrewritten
194.166.158.x/24/91901rewritten
194.102.158.x/24/8UNROUTEDrewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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::1592001:770:18:7:225:90ff: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
2a00:c38:1xx::/40/12015576no
2a00:c38:1xx::/40/11215576no
2a00:c38:1xx::/40/10415576no
2a00:c38:1xx::/40/9615576no
2a00:c38:1xx::/40/8815576no
2a00:c38:1xx::/40/8015576no
2a00:c38:1xx::/40/7215576no
2a00:c38:1xx::/40/6415576no
2a00:c38:1xx::/40/5615576no
2a00:c38:1xx::/40/4815576no
2a00:c38:1xx::/40/4015576no
2a00:c38:81xx::/40/3215576no
2a00:cb8:1xx::/40/24UNROUTEDno
2a00:8c38:1xx::/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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