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Session Report

Summary:
Test run at: 2022-02-25 08:49:00 GMT
Client Prefix (v4): 46.226.3.x/24
Client AS (v4): 56595 (FLUENCY)
IPv4 Probes: 60
Client Prefix (v6): 2001:67c:1bxx::/40
Client AS (v6): 211879 (NJRYCE)
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/48
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 (46.226.3.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
46.226.3.x/24/3156595natblock
46.226.3.x/24/3056595natblock
46.226.3.x/24/2956595natblock
46.226.3.x/24/2856595natblock
46.226.3.x/24/2756595natblock
46.226.3.x/24/2656595natblock
46.226.3.x/24/2556595natblock
46.226.3.x/24/2456595natblock
46.226.2.x/24/2356595natblock
46.226.1.x/24/2256595natblock
46.226.7.x/24/2156595natblock
46.226.11.x/24/2039783natblock
46.226.19.x/24/1952176natblock
46.226.35.x/24/1839155natblock
46.226.67.x/24/1734703natblock
46.226.131.x/24/1634863natblock
46.227.3.x/24/15198471natblock
46.224.3.x/24/1456402natblock
46.230.3.x/24/1335819natblock
46.234.3.x/24/1215924natblock
46.242.3.x/24/1142610natblock
46.194.3.x/24/102119natblock
46.162.3.x/24/924881natblock
46.98.3.x/24/815377natblock

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
2001:67c:1bxx::/40/120211879yes
2001:67c:1bxx::/40/112211879yes
2001:67c:1bxx::/40/104211879yes
2001:67c:1bxx::/40/96211879yes
2001:67c:1bxx::/40/88211879yes
2001:67c:1bxx::/40/80211879yes
2001:67c:1bxx::/40/72211879yes
2001:67c:1bxx::/40/64211879yes
2001:67c:1bxx::/40/56211879yes
2001:67c:1bxx::/40/48211879yes
2001:67c:1bxx::/40/40UNROUTEDno
2001:67c:9bxx::/40/32UNROUTEDno
2001:6fc:1bxx::/40/24UNROUTEDno
2001:867c:1bxx::/40/161221no

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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