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Session Report

Summary:
Test run at: 2021-08-15 19:21:59 GMT
Client Prefix (v4): 45.233.255.x/24
Client AS (v4): 267334
IPv4 Probes: 66
Client Prefix (v6): 2804:4be0:xx::/40
Client AS (v6): 267334
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable receivedblocked
Largest spoofable neighbor prefix length /8/56

Meaning of result status in column:

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 (45.233.255.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.233.255.x/24/31267334yes
45.233.255.x/24/30267334yes
45.233.255.x/24/29267334yes
45.233.255.x/24/28267334yes
45.233.255.x/24/27267334yes
45.233.255.x/24/26267334yes
45.233.255.x/24/25267334yes
45.233.255.x/24/24267334yes
45.233.254.x/24/23267334yes
45.233.253.x/24/22267334yes
45.233.251.x/24/2153065yes
45.233.247.x/24/20267332yes
45.233.239.x/24/19UNROUTEDnatblock
45.233.223.x/24/18267341yes
45.233.191.x/24/17267348yes
45.233.127.x/24/16267311yes
45.232.255.x/24/15265548yes
45.235.255.x/24/14265550yes
45.237.255.x/24/13268333yes
45.225.255.x/24/12266952yes
45.249.255.x/24/11135189yes
45.201.255.x/24/10139646yes
45.169.255.x/24/9268146yes
45.105.255.x/24/837069yes

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::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
2804:4be0:xx::/40/120267334yes
2804:4be0:xx::/40/112267334yes
2804:4be0:xx::/40/104267334yes
2804:4be0:xx::/40/96267334yes
2804:4be0:xx::/40/88267334yes
2804:4be0:xx::/40/80267334yes
2804:4be0:xx::/40/72267334yes
2804:4be0:xx::/40/64267334yes
2804:4be0:xx::/40/56267334yes
2804:4be0:xx::/40/48267334no
2804:4be0:xx::/40/40267334no
2804:4be0:80xx::/40/32267334no
2804:4b60:xx::/40/24267302no
2804:cbe0:xx::/40/16UNROUTEDno

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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