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Session Report

Summary:
Test run at: 2017-08-15 20:02:59 GMT
Client Prefix (v4): 177.36.237.x/24
Client AS (v4): 53070
IPv4 Probes: 131
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /24
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 (177.36.237.x/24) can spoof 255 neighboring addresses (within your /24 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
177.36.237.x/24/3153070yes
177.36.237.x/24/3053070yes
177.36.237.x/24/2953070yes
177.36.237.x/24/2853070yes
177.36.237.x/24/2753070yes
177.36.237.x/24/2653070yes
177.36.237.x/24/2553070yes
177.36.237.x/24/2453070yes
177.36.236.x/24/2353070natblock
177.36.239.x/24/2253070natblock
177.36.233.x/24/2153070natblock
177.36.229.x/24/2053070natblock
177.36.253.x/24/19262404natblock
177.36.205.x/24/1852967natblock
177.36.173.x/24/1753122natblock
177.36.109.x/24/1652972natblock
177.37.237.x/24/1528126natblock
177.38.237.x/24/1452760natblock
177.32.237.x/24/1328573natblock
177.44.237.x/24/1252982natblock
177.52.237.x/24/1152839natblock
177.4.237.x/24/108167natblock
177.100.237.x/24/928573natblock
177.164.237.x/24/826615natblock

Meaning of status in Received column:

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 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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