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Session Report

Summary:
Test run at: 2022-04-09 15:34:43 GMT
Client Prefix (v4): 78.42.152.x/24
Client AS (v4): 3209 (VODANET)
IPv4 Probes: 60
Client Prefix (v6): 2a02:8070:c1xx::/40
Client AS (v6): 3209 (VODANET)
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
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 (78.42.152.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
78.42.152.x/24/313209natblock
78.42.152.x/24/303209natblock
78.42.152.x/24/293209natblock
78.42.152.x/24/283209natblock
78.42.152.x/24/273209natblock
78.42.152.x/24/263209natblock
78.42.152.x/24/253209natblock
78.42.152.x/24/243209natblock
78.42.153.x/24/233209natblock
78.42.154.x/24/223209natblock
78.42.156.x/24/213209natblock
78.42.144.x/24/203209natblock
78.42.136.x/24/193209natblock
78.42.184.x/24/183209natblock
78.42.216.x/24/173209natblock
78.42.24.x/24/163209natblock
78.43.152.x/24/153209natblock
78.40.152.x/24/1424867natblock
78.46.152.x/24/1324940natblock
78.34.152.x/24/128422natblock
78.58.152.x/24/118764natblock
78.10.152.x/24/1012741natblock
78.106.152.x/24/98402natblock
78.170.152.x/24/89121natblock

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
2a02:8070:c1xx::/40/1203209yes
2a02:8070:c1xx::/40/1123209yes
2a02:8070:c1xx::/40/1043209yes
2a02:8070:c1xx::/40/963209yes
2a02:8070:c1xx::/40/883209yes
2a02:8070:c1xx::/40/803209yes
2a02:8070:c1xx::/40/723209yes
2a02:8070:c1xx::/40/643209yes
2a02:8070:c1xx::/40/563209yes
2a02:8070:c1xx::/40/483209no
2a02:8070:c1xx::/40/403209no
2a02:8070:41xx::/40/323209no
2a02:80f0:c1xx::/40/24UNROUTEDno
2a02:70:c1xx::/40/163326no

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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