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Session Report

Summary:
Test run at: 2022-08-06 00:26:24 GMT
Client Prefix (v4): 51.253.58.x/24
Client AS (v4): 39891 (ALJAWWALSTC-AS)
IPv4 Probes: 60
Client Prefix (v6): 2001:16a2:c0xx::/40
Client AS (v6): 39891 (ALJAWWALSTC-AS)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownblocked
Routable unknownblocked
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 (51.253.58.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
51.253.58.x/24/3139891natblock
51.253.58.x/24/3039891natblock
51.253.58.x/24/2939891natblock
51.253.58.x/24/2839891natblock
51.253.58.x/24/2739891natblock
51.253.58.x/24/2639891natblock
51.253.58.x/24/2539891natblock
51.253.58.x/24/2439891natblock
51.253.59.x/24/2339891natblock
51.253.56.x/24/2239891natblock
51.253.62.x/24/2139891natblock
51.253.50.x/24/2039891natblock
51.253.42.x/24/1939891natblock
51.253.26.x/24/1839891natblock
51.253.122.x/24/1739891natblock
51.253.186.x/24/16UNROUTEDnatblock
51.252.58.x/24/1539891natblock
51.255.58.x/24/1416276natblock
51.249.58.x/24/13UNROUTEDnatblock
51.245.58.x/24/12UNROUTEDnatblock
51.237.58.x/24/11UNROUTEDnatblock
51.221.58.x/24/10UNROUTEDnatblock
51.189.58.x/24/9UNROUTEDnatblock
51.125.58.x/24/8UNROUTEDnatblock

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
2001:16a2:c0xx::/40/12039891yes
2001:16a2:c0xx::/40/11239891yes
2001:16a2:c0xx::/40/10439891yes
2001:16a2:c0xx::/40/9639891yes
2001:16a2:c0xx::/40/8839891yes
2001:16a2:c0xx::/40/8039891yes
2001:16a2:c0xx::/40/7239891yes
2001:16a2:c0xx::/40/6439891yes
2001:16a2:c0xx::/40/5639891no
2001:16a2:c0xx::/40/4839891no
2001:16a2:c0xx::/40/4039891no
2001:16a2:40xx::/40/3239386no
2001:1622:c0xx::/40/24UNROUTEDno
2001:96a2:c0xx::/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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