Logo

Session Report

Summary:
Test run at: 2017-01-19 19:48:16 GMT
Client Prefix (v4): 189.84.174.x/24
Client AS (v4): 28171
IPv4 Probes: 102
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 rewritten
Routable rewritten
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.

Warnings:

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 (189.84.174.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
189.84.174.x/24/3128171natblock
189.84.174.x/24/3028171natblock
189.84.174.x/24/2928171natblock
189.84.174.x/24/2828171natblock
189.84.174.x/24/2728171natblock
189.84.174.x/24/2628171natblock
189.84.174.x/24/2528171natblock
189.84.174.x/24/2428171natblock
189.84.175.x/24/2328171natblock
189.84.172.x/24/2228171natblock
189.84.170.x/24/2128171natblock
189.84.166.x/24/2028171natblock
189.84.190.x/24/1928171natblock
189.84.142.x/24/18262989natblock
189.84.238.x/24/1728174natblock
189.84.46.x/24/16UNROUTEDnatblock
189.85.174.x/24/1511844natblock
189.86.174.x/24/144230natblock
189.80.174.x/24/137738natblock
189.92.174.x/24/1222085natblock
189.68.174.x/24/1127699natblock
189.116.174.x/24/1026615natblock
189.20.174.x/24/910429natblock
189.212.174.x/24/86503natblock

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 4 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