Logo

Session Report

Summary:
Test run at: 2020-02-18 20:24:46 GMT
Client Prefix (v4): 186.250.39.x/24
Client AS (v4): 263032
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 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  

IPv4 Adjacent Netblock Testing:

Your host (186.250.39.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
186.250.39.x/24/31263032natblock
186.250.39.x/24/30263032natblock
186.250.39.x/24/29263032natblock
186.250.39.x/24/28263032natblock
186.250.39.x/24/27263032natblock
186.250.39.x/24/26263032natblock
186.250.39.x/24/25263032natblock
186.250.39.x/24/24263032natblock
186.250.38.x/24/23263032natblock
186.250.37.x/24/22263032natblock
186.250.35.x/24/21UNROUTEDnatblock
186.250.47.x/24/20262805natblock
186.250.55.x/24/19262807natblock
186.250.7.x/24/18262801natblock
186.250.103.x/24/17264141natblock
186.250.167.x/24/1652894natblock
186.251.39.x/24/1552914natblock
186.248.39.x/24/1423106natblock
186.254.39.x/24/1326615natblock
186.242.39.x/24/127738natblock
186.234.39.x/24/117162natblock
186.218.39.x/24/10UNROUTEDnatblock
186.186.39.x/24/9UNROUTEDnatblock
186.122.39.x/24/811664natblock

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 able to spoof routable, non-adjacent source addresses through the first 1 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.
Last Modified