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Session Report

Summary:
Test run at: 2023-07-03 21:35:02 GMT
Client Prefix (v4): 192.144.67.x/24
Client AS (v4): 266178
IPv4 Probes: 60
Client Prefix (v6): 2804:3be4:3exx::/40
Client AS (v6): 266178
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable receivedreceived
Largest spoofable neighbor prefix length /8/24
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 (192.144.67.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
192.144.67.x/24/31266178yes
192.144.67.x/24/30266178yes
192.144.67.x/24/29266178yes
192.144.67.x/24/28266178yes
192.144.67.x/24/27266178yes
192.144.67.x/24/26266178yes
192.144.67.x/24/25266178yes
192.144.67.x/24/24266178yes
192.144.66.x/24/23266178yes
192.144.65.x/24/22266178yes
192.144.71.x/24/21266156yes
192.144.75.x/24/20210346yes
192.144.83.x/24/1958826yes
192.144.99.x/24/18266229yes
192.144.3.x/24/1729119yes
192.144.195.x/24/1645090yes
192.145.67.x/24/15UNROUTEDnatblock
192.146.67.x/24/14UNROUTEDnatblock
192.148.67.x/24/13UNROUTEDnatblock
192.152.67.x/24/12UNROUTEDnatblock
192.128.67.x/24/11UNROUTEDnatblock
192.176.67.x/24/10UNROUTEDnatblock
192.208.67.x/24/9UNROUTEDnatblock
192.16.67.x/24/846489yes

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::1592001:40b0:7500:280::5458:517ayes
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ano
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ano
fd11:1111:1111::11112001:40b0:7500:280::5458:517ano
2001:48d0:101:501::1592001:48d0:101:501::242yes
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::247yes
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::1592001:610:510:115:192:42:115:98yes
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: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
2804:3be4:3exx::/40/120266178yes
2804:3be4:3exx::/40/112266178yes
2804:3be4:3exx::/40/104266178yes
2804:3be4:3exx::/40/96266178yes
2804:3be4:3exx::/40/88266178yes
2804:3be4:3exx::/40/80266178yes
2804:3be4:3exx::/40/72266178yes
2804:3be4:3exx::/40/64266178yes
2804:3be4:3exx::/40/56266178yes
2804:3be4:3exx::/40/48266178yes
2804:3be4:3exx::/40/40266178yes
2804:3be4:bexx::/40/32266178yes
2804:3b64:3exx::/40/24266146yes
2804:bbe4:3exx::/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
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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