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Session Report

Summary:
Test run at: 2022-06-06 10:36:39 GMT
Client Prefix (v4): 80.250.1.x/24
Client AS (v4): 21430 (WIA-AS)
IPv4 Probes: 60
Client Prefix (v6): 2a01:6400:xx::/40
Client AS (v6): 21430 (WIA-AS)
IPv6 Probes: 56
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 /8/16
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 (80.250.1.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
80.250.1.x/24/3121430yes
80.250.1.x/24/3021430yes
80.250.1.x/24/2921430yes
80.250.1.x/24/2821430yes
80.250.1.x/24/2721430yes
80.250.1.x/24/2621430yes
80.250.1.x/24/2521430yes
80.250.1.x/24/2421430yes
80.250.0.x/24/2321430yes
80.250.3.x/24/2221430yes
80.250.5.x/24/2121430yes
80.250.9.x/24/2021430yes
80.250.17.x/24/1921430yes
80.250.33.x/24/1829286yes
80.250.65.x/24/1721480yes
80.250.129.x/24/1616001yes
80.251.1.x/24/1542705yes
80.248.1.x/24/1425163yes
80.254.1.x/24/1315738yes
80.242.1.x/24/12UNROUTEDnatblock
80.234.1.x/24/1112389yes
80.218.1.x/24/106830yes
80.186.1.x/24/9719yes
80.122.1.x/24/88447yes

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::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
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::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
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:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
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
2a01:6400:xx::/40/12021430yes
2a01:6400:xx::/40/11221430yes
2a01:6400:xx::/40/10421430yes
2a01:6400:xx::/40/9621430yes
2a01:6400:xx::/40/8821430yes
2a01:6400:xx::/40/8021430yes
2a01:6400:xx::/40/7221430yes
2a01:6400:xx::/40/6421430yes
2a01:6400:xx::/40/5621430yes
2a01:6400:xx::/40/4821430yes
2a01:6400:xx::/40/4021430yes
2a01:6400:80xx::/40/3221430yes
2a01:6480:xx::/40/2429049yes
2a01:e400:xx::/40/16UNROUTEDyes

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)
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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