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Session Report

Summary:
Test run at: 2024-02-23 06:58:34 GMT
Client Prefix (v4): 41.70.11.x/24
Client AS (v4): 37215 (MAREN)
IPv4 Probes: 66
Client Prefix (v6): 2c0f:ea60:1xx::/40
Client AS (v6): 37215 (MAREN)
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 /17/32
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 (41.70.11.x/24) can spoof 32767 neighboring addresses (within your /17 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
41.70.11.x/24/3137215yes
41.70.11.x/24/3037215yes
41.70.11.x/24/2937215yes
41.70.11.x/24/2837215yes
41.70.11.x/24/2737215yes
41.70.11.x/24/2637215yes
41.70.11.x/24/2537215yes
41.70.11.x/24/2437215yes
41.70.10.x/24/2337215yes
41.70.9.x/24/2237215yes
41.70.15.x/24/2137215yes
41.70.3.x/24/2037215yes
41.70.27.x/24/1937215yes
41.70.43.x/24/1837215yes
41.70.75.x/24/1737215yes
41.70.139.x/24/1637081no
41.71.11.x/24/1537053no
41.68.11.x/24/1424835no
41.66.11.x/24/1329571no
41.78.11.x/24/12UNROUTEDno
41.86.11.x/24/1137203no
41.102.11.x/24/1036947no
41.6.11.x/24/929975no
41.198.11.x/24/85713no

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
2001:48d0:101:501::1592607:8400:2880:4::80df:9d0dno
2001:4978:1fb:6400::d22607:8400:2880:4::80df:9d0dno
2001:49aa:111:aa00::112607:8400:2880:4::80df:9d0dno
fd11:1111:1111::11112607:8400:2880:4::80df:9d0dno
2001:48d0:101:501::1592607:f278:2:13:da3a:ddff:fe30:ce14no
2001:4978:1fb:6400::d22607:f278:2:13:da3a:ddff:fe30:ce14no
2001:49aa:111:aa00::112607:f278:2:13:da3a:ddff:fe30:ce14no
fd11:1111:1111::11112607:f278:2:13:da3a:ddff:fe30:ce14no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2c0f:ea60:1xx::/40/12037215yes
2c0f:ea60:1xx::/40/11237215yes
2c0f:ea60:1xx::/40/10437215yes
2c0f:ea60:1xx::/40/9637215yes
2c0f:ea60:1xx::/40/8837215yes
2c0f:ea60:1xx::/40/8037215yes
2c0f:ea60:1xx::/40/7237215yes
2c0f:ea60:1xx::/40/6437215yes
2c0f:ea60:1xx::/40/5637215yes
2c0f:ea60:1xx::/40/4837215yes
2c0f:ea60:1xx::/40/4037215yes
2c0f:ea60:81xx::/40/3237215yes
2c0f:eae0:1xx::/40/2437521no
2c0f:6a60:1xx::/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:
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