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Session Report

Summary:
Test run at: 2022-06-23 11:00:02 GMT
Client Prefix (v4): 138.0.115.x/24
Client AS (v4): 264544
IPv4 Probes: 60
Client Prefix (v6): 2804:213c:xx::/40
Client AS (v6): 264544
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 /27none
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 (138.0.115.x/24) can spoof 31 neighboring addresses (within your /27 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
138.0.115.x/24/31264544yes
138.0.115.x/24/30264544yes
138.0.115.x/24/29264544yes
138.0.115.x/24/28264544yes
138.0.115.x/24/27264544yes
138.0.115.x/24/26264544no
138.0.115.x/24/25264544no
138.0.115.x/24/24264544no
138.0.114.x/24/23264544no
138.0.113.x/24/22264544no
138.0.119.x/24/21262186no
138.0.123.x/24/2014259no
138.0.99.x/24/19264543no
138.0.83.x/24/18264541no
138.0.51.x/24/17264542no
138.0.243.x/24/16264850no
138.1.115.x/24/1531898no
138.2.115.x/24/1431898no
138.4.115.x/24/13766no
138.8.115.x/24/12UNROUTEDno
138.16.115.x/24/1111078no
138.32.115.x/24/10UNROUTEDno
138.64.115.x/24/94685no
138.128.115.x/24/836352no

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)

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
2804:213c:xx::/40/120264544no
2804:213c:xx::/40/112264544no
2804:213c:xx::/40/104264544no
2804:213c:xx::/40/96264544no
2804:213c:xx::/40/88264544no
2804:213c:xx::/40/80264544no
2804:213c:xx::/40/72264544no
2804:213c:xx::/40/64264544no
2804:213c:xx::/40/56264544no
2804:213c:xx::/40/48264544no
2804:213c:xx::/40/40264544no
2804:213c:80xx::/40/32264544no
2804:21bc:xx::/40/24264570no
2804:a13c:xx::/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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