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Session Report

Summary:
Test run at: 2021-10-21 14:38:30 GMT
Client Prefix (v4): 62.201.239.x/24
Client AS (v4): 48492 (IQ-Online)
IPv4 Probes: 66
Client Prefix (v6): 2a0d:4f00:xx::/40
Client AS (v6): 48492 (IQ-Online)
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/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 (62.201.239.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
62.201.239.x/24/3148492natblock
62.201.239.x/24/3048492natblock
62.201.239.x/24/2948492natblock
62.201.239.x/24/2848492natblock
62.201.239.x/24/2748492natblock
62.201.239.x/24/2648492natblock
62.201.239.x/24/2548492natblock
62.201.239.x/24/2448492natblock
62.201.238.x/24/2344217natblock
62.201.237.x/24/2241032natblock
62.201.235.x/24/2144217natblock
62.201.231.x/24/2044217natblock
62.201.255.x/24/1944217natblock
62.201.207.x/24/1841032natblock
62.201.175.x/24/1712731natblock
62.201.111.x/24/165483natblock
62.200.239.x/24/152686natblock
62.203.239.x/24/143303natblock
62.205.239.x/24/1328843natblock
62.193.239.x/24/12UNROUTEDnatblock
62.217.239.x/24/118953natblock
62.233.239.x/24/1012741natblock
62.137.239.x/24/9UNROUTEDnatblock
62.73.239.x/24/825400natblock

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::1592001:610:510:115:192:42:115:98no
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
2a0d:4f00:xx::/40/12048492yes
2a0d:4f00:xx::/40/11248492yes
2a0d:4f00:xx::/40/10448492yes
2a0d:4f00:xx::/40/9648492yes
2a0d:4f00:xx::/40/8848492yes
2a0d:4f00:xx::/40/8048492yes
2a0d:4f00:xx::/40/7248492yes
2a0d:4f00:xx::/40/6448492yes
2a0d:4f00:xx::/40/5648492no
2a0d:4f00:xx::/40/4848492no
2a0d:4f00:xx::/40/40UNROUTEDno
2a0d:4f00:80xx::/40/32UNROUTEDno
2a0d:4f80:xx::/40/24UNROUTEDno
2a0d:cf00: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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