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Session Report

Summary:
Test run at: 2022-04-29 20:34:03 GMT
Client Prefix (v4): 185.247.117.x/24
Client AS (v4): 60781 (LEASEWEB-NL-AMS-01)
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 (185.247.117.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.247.117.x/24/3160781no
185.247.117.x/24/3060781no
185.247.117.x/24/2960781no
185.247.117.x/24/2860781no
185.247.117.x/24/2760781no
185.247.117.x/24/2660781no
185.247.117.x/24/2560781rewritten
185.247.117.x/24/2460781no
185.247.116.x/24/2362240no
185.247.119.x/24/2262240no
185.247.113.x/24/21UNROUTEDno
185.247.125.x/24/2013287no
185.247.101.x/24/19198944no
185.247.85.x/24/1839405no
185.247.53.x/24/1725441no
185.247.245.x/24/1657933no
185.246.117.x/24/1559504no
185.245.117.x/24/14199542no
185.243.117.x/24/1335507no
185.255.117.x/24/1257728no
185.231.117.x/24/11205718no
185.215.117.x/24/1033657no
185.183.117.x/24/9206537no
185.119.117.x/24/844133no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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.
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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