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Session Report

Summary:
Test run at: 2023-07-25 14:51:42 GMT
Client Prefix (v4): 31.215.187.x/24
Client AS (v4): 5384 (EMIRATES-INTERNET)
IPv4 Probes: 60
Client Prefix (v6): 2001:8f8:1cxx::/40
Client AS (v6): 8966 (Etisalat-AS)
IPv6 Probes: 52
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 (31.215.187.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
31.215.187.x/24/315384natblock
31.215.187.x/24/305384natblock
31.215.187.x/24/295384natblock
31.215.187.x/24/285384natblock
31.215.187.x/24/275384natblock
31.215.187.x/24/265384natblock
31.215.187.x/24/255384natblock
31.215.187.x/24/245384natblock
31.215.186.x/24/235384natblock
31.215.185.x/24/225384natblock
31.215.191.x/24/215384natblock
31.215.179.x/24/205384natblock
31.215.171.x/24/195384natblock
31.215.155.x/24/185384natblock
31.215.251.x/24/175384natblock
31.215.59.x/24/165384natblock
31.214.187.x/24/1557910natblock
31.213.187.x/24/143320natblock
31.211.187.x/24/13198454natblock
31.223.187.x/24/12203061natblock
31.199.187.x/24/113269natblock
31.247.187.x/24/103320natblock
31.151.187.x/24/933915natblock
31.87.187.x/24/812576natblock

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 able to spoof routable, non-adjacent source addresses through the first 1 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::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
2001:8f8:1cxx::/40/1208966yes
2001:8f8:1cxx::/40/1128966yes
2001:8f8:1cxx::/40/1048966yes
2001:8f8:1cxx::/40/968966yes
2001:8f8:1cxx::/40/888966yes
2001:8f8:1cxx::/40/808966yes
2001:8f8:1cxx::/40/728966yes
2001:8f8:1cxx::/40/648966yes
2001:8f8:1cxx::/40/568966no
2001:8f8:1cxx::/40/488966no
2001:8f8:1cxx::/40/408966no
2001:8f8:9cxx::/40/328966no
2001:878:1cxx::/40/241835no
2001:88f8:1cxx::/40/161221no

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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