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Session Report

Summary:
Test run at: 2020-02-12 03:58:07 GMT
Client Prefix (v4): 201.22.11.x/24
Client AS (v4): 18881
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /8

Meaning of result status in column:

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 (201.22.11.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
201.22.11.x/24/3118881natblock
201.22.11.x/24/3018881natblock
201.22.11.x/24/2918881natblock
201.22.11.x/24/2818881yes
201.22.11.x/24/2718881yes
201.22.11.x/24/2618881yes
201.22.11.x/24/2518881yes
201.22.11.x/24/2418881yes
201.22.10.x/24/2318881yes
201.22.9.x/24/2218881yes
201.22.15.x/24/2118881yes
201.22.3.x/24/2018881yes
201.22.27.x/24/1918881yes
201.22.43.x/24/1818881yes
201.22.75.x/24/1718881yes
201.22.139.x/24/1618881yes
201.23.11.x/24/1528590yes
201.20.11.x/24/1416397yes
201.18.11.x/24/137738yes
201.30.11.x/24/124230yes
201.6.11.x/24/1128573yes
201.54.11.x/24/1028590yes
201.86.11.x/24/918881yes
201.150.11.x/24/828539yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 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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