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Session Report

Summary:
Test run at: 2021-02-23 13:42:18 GMT
Client Prefix (v4): 84.247.44.x/24
Client AS (v4): 207375 (FIBO)
IPv4 Probes: 66
Client Prefix (v6): 2a00:bba0:11xx::/40
Client AS (v6): 207375 (FIBO)
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/56
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 (84.247.44.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
84.247.44.x/24/31207375natblock
84.247.44.x/24/30207375natblock
84.247.44.x/24/29207375natblock
84.247.44.x/24/28207375natblock
84.247.44.x/24/27207375natblock
84.247.44.x/24/26207375natblock
84.247.44.x/24/25207375natblock
84.247.44.x/24/24207375natblock
84.247.45.x/24/23207375natblock
84.247.46.x/24/2212653natblock
84.247.40.x/24/21210176natblock
84.247.36.x/24/2039737natblock
84.247.60.x/24/19203020natblock
84.247.12.x/24/1820857natblock
84.247.108.x/24/1712310natblock
84.247.172.x/24/1629300natblock
84.246.44.x/24/1528685natblock
84.245.44.x/24/141239natblock
84.243.44.x/24/1362183natblock
84.255.44.x/24/1212709natblock
84.231.44.x/24/11719natblock
84.215.44.x/24/1041164natblock
84.183.44.x/24/93320natblock
84.119.44.x/24/86830natblock

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::1592001:630:212:225:225:90ff: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:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a00:bba0:11xx::/40/120207375yes
2a00:bba0:11xx::/40/112207375yes
2a00:bba0:11xx::/40/104207375yes
2a00:bba0:11xx::/40/96207375yes
2a00:bba0:11xx::/40/88207375yes
2a00:bba0:11xx::/40/80207375yes
2a00:bba0:11xx::/40/72207375yes
2a00:bba0:11xx::/40/64207375yes
2a00:bba0:11xx::/40/56207375yes
2a00:bba0:11xx::/40/48207375no
2a00:bba0:11xx::/40/40207375no
2a00:bba0:91xx::/40/32207375no
2a00:bb20:11xx::/40/24UNROUTEDno
2a00:3ba0:11xx::/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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