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Session Report

Summary:
Test run at: 2021-12-02 14:38:04 GMT
Client Prefix (v4): 91.222.5.x/24
Client AS (v4): 51859 (MNSHA-AS)
IPv4 Probes: 66
Client Prefix (v6): 2a04:2e40:xx::/40
Client AS (v6): 51859 (MNSHA-AS)
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 /28/64
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 (91.222.5.x/24) can spoof 15 neighboring addresses (within your /28 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
91.222.5.x/24/3151859yes
91.222.5.x/24/3051859no
91.222.5.x/24/2951859yes
91.222.5.x/24/2851859yes
91.222.5.x/24/2751859no
91.222.5.x/24/2651859no
91.222.5.x/24/2551859no
91.222.5.x/24/2451859no
91.222.4.x/24/2351859no
91.222.7.x/24/2251859no
91.222.1.x/24/2151866no
91.222.13.x/24/2056415no
91.222.21.x/24/1941352no
91.222.37.x/24/1835319no
91.222.69.x/24/1751976no
91.222.133.x/24/16139853no
91.223.5.x/24/153215no
91.220.5.x/24/14197559no
91.218.5.x/24/1351225no
91.214.5.x/24/1220705no
91.206.5.x/24/1129074no
91.254.5.x/24/101267no
91.158.5.x/24/9719no
91.94.5.x/24/85617no

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)

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
2a04:2e40:xx::/40/12051859yes
2a04:2e40:xx::/40/11251859yes
2a04:2e40:xx::/40/10451859yes
2a04:2e40:xx::/40/9651859yes
2a04:2e40:xx::/40/8851859yes
2a04:2e40:xx::/40/8051859yes
2a04:2e40:xx::/40/7251859yes
2a04:2e40:xx::/40/6451859yes
2a04:2e40:xx::/40/5651859no
2a04:2e40:xx::/40/4851859no
2a04:2e40:xx::/40/4051859no
2a04:2e40:80xx::/40/3251859no
2a04:2ec0:xx::/40/2460849no
2a04:ae40:xx::/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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