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Session Report

Summary:
Test run at: 2024-06-16 13:56:05 GMT
Client Prefix (v4): 177.22.5.x/24
Client AS (v4): 28343
IPv4 Probes: 69
Client Prefix (v6): 2804:30c:22xx::/40
Client AS (v6): 28343
IPv6 Probes: 64
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenrewritten
Routable rewrittenrewritten
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 (177.22.5.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.22.5.x/24/3128343rewritten
177.22.5.x/24/3028343sendto
177.22.5.x/24/2928343sendto
177.22.5.x/24/2828343sendto
177.22.5.x/24/2728343rewritten
177.22.5.x/24/2628343sendto
177.22.5.x/24/2528343sendto
177.22.5.x/24/2428343rewritten
177.22.4.x/24/2328343sendto
177.22.7.x/24/2228343rewritten
177.22.1.x/24/2128343sendto
177.22.13.x/24/2028343rewritten
177.22.21.x/24/1952952sendto
177.22.37.x/24/1852981sendto
177.22.69.x/24/17262890rewritten
177.22.133.x/24/1652958rewritten
177.23.5.x/24/15262886sendto
177.20.5.x/24/1453239sendto
177.18.5.x/24/1318881sendto
177.30.5.x/24/1226615sendto
177.6.5.x/24/118167sendto
177.54.5.x/24/1028343sendto
177.86.5.x/24/928146rewritten
177.150.5.x/24/826615rewritten

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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:30c:22xx::/40/12028343rewritten
2804:30c:22xx::/40/11228343sendto
2804:30c:22xx::/40/10428343sendto
2804:30c:22xx::/40/9628343sendto
2804:30c:22xx::/40/8828343rewritten
2804:30c:22xx::/40/8028343sendto
2804:30c:22xx::/40/7228343rewritten
2804:30c:22xx::/40/6428343sendto
2804:30c:22xx::/40/5628343sendto
2804:30c:22xx::/40/4828343rewritten
2804:30c:22xx::/40/4028343rewritten
2804:30c:a2xx::/40/3228343sendto
2804:38c:22xx::/40/24UNROUTEDsendto
2804:830c:22xx::/40/16UNROUTEDsendto

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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
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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