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Session Report

Summary:
Test run at: 2023-06-12 06:02:31 GMT
Client Prefix (v4): 77.31.193.x/24
Client AS (v4): 39891 (ALJAWWALSTC-AS)
IPv4 Probes: 60
Client Prefix (v6): 2001:16a4:xx::/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 rewrittenunknown
Routable rewrittenunknown
Largest spoofable neighbor prefix length nonenone
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.

Warnings:

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 (77.31.193.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
77.31.193.x/24/3139891rewritten
77.31.193.x/24/3039891rewritten
77.31.193.x/24/2939891rewritten
77.31.193.x/24/2839891rewritten
77.31.193.x/24/2739891rewritten
77.31.193.x/24/2639891rewritten
77.31.193.x/24/2539891rewritten
77.31.193.x/24/2439891rewritten
77.31.192.x/24/2339891rewritten
77.31.195.x/24/2239891rewritten
77.31.197.x/24/2139891rewritten
77.31.201.x/24/2039891rewritten
77.31.209.x/24/1939891rewritten
77.31.225.x/24/1839891rewritten
77.31.129.x/24/1725019rewritten
77.31.65.x/24/1625019rewritten
77.30.193.x/24/1525019rewritten
77.29.193.x/24/146821rewritten
77.27.193.x/24/1312334rewritten
77.23.193.x/24/123209rewritten
77.15.193.x/24/116805rewritten
77.63.193.x/24/101136rewritten
77.95.193.x/24/939235rewritten
77.159.193.x/24/815557rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

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 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:16a4:xx::/40/12039891no
2001:16a4:xx::/40/11239891no
2001:16a4:xx::/40/10439891no
2001:16a4:xx::/40/9639891no
2001:16a4:xx::/40/8839891no
2001:16a4:xx::/40/8039891no
2001:16a4:xx::/40/7239891no
2001:16a4:xx::/40/6439891no
2001:16a4:xx::/40/5639891no
2001:16a4:xx::/40/4839891no
2001:16a4:xx::/40/4039386no
2001:16a4:80xx::/40/3239386no
2001:1624:xx::/40/24UNROUTEDno
2001:96a4:xx::/40/16UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
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