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Session Report

Summary:
Test run at: 2023-05-24 05:47:38 GMT
Client Prefix (v4): 141.255.166.x/24
Client AS (v4): 51852 (PLI-AS)
IPv4 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length none
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 Adjacent Netblock Testing:

Your host (141.255.166.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
141.255.166.x/24/3151852sendto
141.255.166.x/24/3051852sendto
141.255.166.x/24/2951852sendto
141.255.166.x/24/2851852sendto
141.255.166.x/24/2751852sendto
141.255.166.x/24/2651852sendto
141.255.166.x/24/2551852sendto
141.255.166.x/24/2451852sendto
141.255.167.x/24/2351852sendto
141.255.164.x/24/2251852sendto
141.255.162.x/24/2151852sendto
141.255.174.x/24/2016364sendto
141.255.182.x/24/1931586sendto
141.255.134.x/24/18199636sendto
141.255.230.x/24/172107sendto
141.255.38.x/24/163329sendto
141.254.166.x/24/15UNROUTEDsendto
141.253.166.x/24/14UNROUTEDsendto
141.251.166.x/24/13UNROUTEDno
141.247.166.x/24/12UNROUTEDsendto
141.239.166.x/24/1136149sendto
141.223.166.x/24/103784sendto
141.191.166.x/24/9UNROUTEDsendto
141.127.166.x/24/8719sendto

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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 able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).
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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