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Session Report

Summary:
Test run at: 2020-09-07 04:16:32 GMT
Client Prefix (v4): 185.153.177.x/24
Client AS (v4): 36351 (SOFTLAYER)
IPv4 Probes: 75
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 (185.153.177.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.153.177.x/24/3136351natblock
185.153.177.x/24/3036351natblock
185.153.177.x/24/2936351natblock
185.153.177.x/24/2836351natblock
185.153.177.x/24/2736351natblock
185.153.177.x/24/2636351natblock
185.153.177.x/24/2536351natblock
185.153.177.x/24/2436351natblock
185.153.176.x/24/2336351natblock
185.153.179.x/24/2246562natblock
185.153.181.x/24/2135913natblock
185.153.185.x/24/2024631natblock
185.153.161.x/24/19UNROUTEDnatblock
185.153.145.x/24/18198966natblock
185.153.241.x/24/1750449natblock
185.153.49.x/24/1652188natblock
185.152.177.x/24/151257natblock
185.155.177.x/24/1444160natblock
185.157.177.x/24/1324940natblock
185.145.177.x/24/12203068natblock
185.137.177.x/24/1143874natblock
185.185.177.x/24/10206472natblock
185.217.177.x/24/921413natblock
185.25.177.x/24/848475natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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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