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Session Report

Summary:
Test run at: 2022-08-12 03:02:14 GMT
Client Prefix (v4): 45.42.44.x/24
Client AS (v4): 0
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 (45.42.44.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.42.44.x/24/31UNROUTEDnatblock
45.42.44.x/24/30UNROUTEDrewritten
45.42.44.x/24/29UNROUTEDrewritten
45.42.44.x/24/28UNROUTEDrewritten
45.42.44.x/24/27UNROUTEDrewritten
45.42.44.x/24/26UNROUTEDrewritten
45.42.44.x/24/25UNROUTEDrewritten
45.42.44.x/24/24UNROUTEDrewritten
45.42.45.x/24/23UNROUTEDrewritten
45.42.46.x/24/22UNROUTEDnatblock
45.42.40.x/24/21UNROUTEDnatblock
45.42.36.x/24/20UNROUTEDrewritten
45.42.60.x/24/19UNROUTEDnatblock
45.42.12.x/24/18UNROUTEDrewritten
45.42.108.x/24/17UNROUTEDrewritten
45.42.172.x/24/16UNROUTEDrewritten
45.43.44.x/24/15UNROUTEDrewritten
45.40.44.x/24/14UNROUTEDrewritten
45.46.44.x/24/13UNROUTEDrewritten
45.34.44.x/24/12UNROUTEDnatblock
45.58.44.x/24/11UNROUTEDrewritten
45.10.44.x/24/10UNROUTEDrewritten
45.106.44.x/24/9UNROUTEDrewritten
45.170.44.x/24/8UNROUTEDrewritten

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.
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 10 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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