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Session Report

Summary:
Test run at: 2022-04-28 13:19:16 GMT
Client Prefix (v4): 189.40.90.x/24
Client AS (v4): 26615
IPv4 Probes: 60
Client Prefix (v6): 2804:214:82xx::/40
Client AS (v6): 26615
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownblocked
Routable unknownblocked
Largest spoofable neighbor prefix length none/64

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.

IPv4 Adjacent Netblock Testing:

Your host (189.40.90.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
189.40.90.x/24/3126615natblock
189.40.90.x/24/3026615natblock
189.40.90.x/24/2926615natblock
189.40.90.x/24/2826615natblock
189.40.90.x/24/2726615natblock
189.40.90.x/24/2626615natblock
189.40.90.x/24/2526615natblock
189.40.90.x/24/2426615natblock
189.40.91.x/24/2326615natblock
189.40.88.x/24/2226615natblock
189.40.94.x/24/2126615natblock
189.40.82.x/24/2026615natblock
189.40.74.x/24/1926615natblock
189.40.122.x/24/1826615natblock
189.40.26.x/24/1726615natblock
189.40.218.x/24/1626615natblock
189.41.90.x/24/1553006natblock
189.42.90.x/24/144230natblock
189.44.90.x/24/1310429natblock
189.32.90.x/24/1228573natblock
189.56.90.x/24/1110429natblock
189.8.90.x/24/1028669natblock
189.104.90.x/24/97738natblock
189.168.90.x/24/88151natblock

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.
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
Network is unreachable (101)
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
2804:214:82xx::/40/12026615yes
2804:214:82xx::/40/11226615yes
2804:214:82xx::/40/10426615yes
2804:214:82xx::/40/9626615yes
2804:214:82xx::/40/8826615yes
2804:214:82xx::/40/8026615yes
2804:214:82xx::/40/7226615yes
2804:214:82xx::/40/6426615yes
2804:214:82xx::/40/5626615no
2804:214:82xx::/40/4826615no
2804:214:82xx::/40/4026615no
2804:214:2xx::/40/3226615no
2804:294:82xx::/40/2428604no
2804:8214:82xx::/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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