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Session Report

Summary:
Test run at: 2021-10-17 23:58:37 GMT
Client Prefix (v4): 212.44.120.x/24
Client AS (v4): 43128 (DHH-AS)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 unknown
Routable unknown
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.

Warnings:

IPv4 Adjacent Netblock Testing:

Your host (212.44.120.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
212.44.120.x/24/3143128natblock
212.44.120.x/24/3043128natblock
212.44.120.x/24/2943128natblock
212.44.120.x/24/2843128natblock
212.44.120.x/24/2743128natblock
212.44.120.x/24/2643128natblock
212.44.120.x/24/2543128natblock
212.44.120.x/24/2443128natblock
212.44.121.x/24/23UNROUTEDnatblock
212.44.122.x/24/22UNROUTEDnatblock
212.44.124.x/24/21UNROUTEDnatblock
212.44.112.x/24/2043128natblock
212.44.104.x/24/1943128natblock
212.44.88.x/24/1820632natblock
212.44.56.x/24/175552natblock
212.44.248.x/24/168921natblock
212.45.120.x/24/1535637natblock
212.46.120.x/24/1412676natblock
212.40.120.x/24/1312594natblock
212.36.120.x/24/12UNROUTEDnatblock
212.60.120.x/24/1131027natblock
212.12.120.x/24/1012479natblock
212.108.120.x/24/9UNROUTEDnatblock
212.172.120.x/24/812312natblock

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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