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Session Report

Summary:
Test run at: 2020-09-05 20:41:14 GMT
Client Prefix (v4): 192.71.166.x/24
Client AS (v4): 8280 (SYNAPSECOM-AS)
IPv4 Probes: 75
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 (192.71.166.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
192.71.166.x/24/318280natblock
192.71.166.x/24/308280natblock
192.71.166.x/24/298280natblock
192.71.166.x/24/288280natblock
192.71.166.x/24/278280natblock
192.71.166.x/24/268280natblock
192.71.166.x/24/258280natblock
192.71.166.x/24/248280natblock
192.71.167.x/24/23UNROUTEDnatblock
192.71.164.x/24/2229518natblock
192.71.162.x/24/21UNROUTEDnatblock
192.71.174.x/24/20UNROUTEDnatblock
192.71.182.x/24/19UNROUTEDnatblock
192.71.134.x/24/18UNROUTEDnatblock
192.71.230.x/24/1735041natblock
192.71.38.x/24/1642708natblock
192.70.166.x/24/15UNROUTEDnatblock
192.69.166.x/24/1422898natblock
192.67.166.x/24/1355128natblock
192.79.166.x/24/12UNROUTEDnatblock
192.87.166.x/24/111103natblock
192.103.166.x/24/10UNROUTEDnatblock
192.7.166.x/24/9UNROUTEDnatblock
192.199.166.x/24/8UNROUTEDnatblock

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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