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Session Report

Summary:
Test run at: 2022-01-07 20:25:01 GMT
Client Prefix (v4): 45.233.255.x/24
Client AS (v4): 267334
IPv4 Probes: 63
Client Prefix (v6): 2804:4be0:xx::/40
Client AS (v6): 267334
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenrewritten
Routable rewrittenreceived
Largest spoofable neighbor prefix length nonenone

Meaning of result status in column:

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.233.255.x/24/31267334rewritten
45.233.255.x/24/30267334rewritten
45.233.255.x/24/29267334rewritten
45.233.255.x/24/28267334rewritten
45.233.255.x/24/27267334rewritten
45.233.255.x/24/26267334rewritten
45.233.255.x/24/25267334rewritten
45.233.255.x/24/24267334rewritten
45.233.254.x/24/23267334rewritten
45.233.253.x/24/22267334rewritten
45.233.251.x/24/2153065rewritten
45.233.247.x/24/20267332rewritten
45.233.239.x/24/19UNROUTEDrewritten
45.233.223.x/24/18267341rewritten
45.233.191.x/24/17267348rewritten
45.233.127.x/24/16267311rewritten
45.232.255.x/24/15265548rewritten
45.235.255.x/24/14265550rewritten
45.237.255.x/24/13268333rewritten
45.225.255.x/24/12266952rewritten
45.249.255.x/24/11135189rewritten
45.201.255.x/24/10139646rewritten
45.169.255.x/24/9268146rewritten
45.105.255.x/24/837069rewritten

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 probes:
Spoofed source addressDestinationReceived
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2804:4be0:xx::/40/120267334rewritten
2804:4be0:xx::/40/112267334rewritten
2804:4be0:xx::/40/104267334rewritten
2804:4be0:xx::/40/96267334rewritten
2804:4be0:xx::/40/88267334rewritten
2804:4be0:xx::/40/80267334rewritten
2804:4be0:xx::/40/72267334rewritten
2804:4be0:xx::/40/64267334rewritten
2804:4be0:xx::/40/56267334rewritten
2804:4be0:xx::/40/48267334rewritten
2804:4be0:xx::/40/40267334rewritten
2804:4be0:80xx::/40/32267334rewritten
2804:4b60:xx::/40/24UNROUTEDrewritten
2804:cbe0:xx::/40/16UNROUTEDrewritten

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.
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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