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Session Report

Summary:
Test run at: 2020-09-02 16:25:13 GMT
Client Prefix (v4): 212.102.46.x/24
Client AS (v4): 60068 (CDN77)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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 (212.102.46.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
212.102.46.x/24/3160068rewritten
212.102.46.x/24/3060068rewritten
212.102.46.x/24/2960068rewritten
212.102.46.x/24/2860068rewritten
212.102.46.x/24/2760068rewritten
212.102.46.x/24/2660068rewritten
212.102.46.x/24/2560068rewritten
212.102.46.x/24/2460068rewritten
212.102.47.x/24/2360068rewritten
212.102.44.x/24/2260068rewritten
212.102.42.x/24/2160068rewritten
212.102.38.x/24/2060068rewritten
212.102.62.x/24/1960068rewritten
212.102.14.x/24/1834426rewritten
212.102.110.x/24/17UNROUTEDrewritten
212.102.174.x/24/1612657rewritten
212.103.46.x/24/1538964rewritten
212.100.46.x/24/14198967rewritten
212.98.46.x/24/136730rewritten
212.110.46.x/24/1212779rewritten
212.118.46.x/24/1125308rewritten
212.70.46.x/24/1029690rewritten
212.38.46.x/24/912445rewritten
212.230.46.x/24/815704rewritten

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 able to spoof routable, non-adjacent source addresses through the first 2 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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