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Session Report

Summary:
Test run at: 2022-04-27 21:08:19 GMT
Client Prefix (v4): 45.188.236.x/24
Client AS (v4): 269595
IPv4 Probes: 60
Client Prefix (v6): 2804:7fa0:40xx::/40
Client AS (v6): 271699
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /9/16
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 (45.188.236.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.188.236.x/24/31269595yes
45.188.236.x/24/30269595yes
45.188.236.x/24/29269595yes
45.188.236.x/24/28269595yes
45.188.236.x/24/27269595yes
45.188.236.x/24/26269595yes
45.188.236.x/24/25269595yes
45.188.236.x/24/24269595yes
45.188.237.x/24/23269595yes
45.188.238.x/24/22269595yes
45.188.232.x/24/21264744yes
45.188.228.x/24/20269852yes
45.188.252.x/24/19269552yes
45.188.204.x/24/18269534yes
45.188.172.x/24/17UNROUTEDnatblock
45.188.108.x/24/16265607yes
45.189.236.x/24/15265612yes
45.190.236.x/24/14265617yes
45.184.236.x/24/13269349yes
45.180.236.x/24/12269153yes
45.172.236.x/24/11268781yes
45.156.236.x/24/1034358yes
45.252.236.x/24/956882yes
45.60.236.x/24/8UNROUTEDnatblock

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
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::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:610:510:115:192:42:115:98yes
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:45a6yes
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:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4yes
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:7fa0:40xx::/40/120271699yes
2804:7fa0:40xx::/40/112271699yes
2804:7fa0:40xx::/40/104271699yes
2804:7fa0:40xx::/40/96271699yes
2804:7fa0:40xx::/40/88271699yes
2804:7fa0:40xx::/40/80271699yes
2804:7fa0:40xx::/40/72271699yes
2804:7fa0:40xx::/40/64271699yes
2804:7fa0:40xx::/40/56271699yes
2804:7fa0:40xx::/40/48271699yes
2804:7fa0:40xx::/40/40271699yes
2804:7fa0:c0xx::/40/32UNROUTEDyes
2804:7f20:40xx::/40/24271668yes
2804:ffa0:40xx::/40/16UNROUTEDyes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
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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