Logo

Session Report

Summary:
Test run at: 2023-08-20 22:12:49 GMT
Client Prefix (v4): 188.26.253.x/24
Client AS (v4): 8708 (RCS-RDS)
IPv4 Probes: 63
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 (188.26.253.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
188.26.253.x/24/318708natblock
188.26.253.x/24/308708natblock
188.26.253.x/24/298708natblock
188.26.253.x/24/288708natblock
188.26.253.x/24/278708natblock
188.26.253.x/24/268708natblock
188.26.253.x/24/258708natblock
188.26.253.x/24/248708natblock
188.26.252.x/24/238708natblock
188.26.255.x/24/228708natblock
188.26.249.x/24/218708natblock
188.26.245.x/24/208708natblock
188.26.237.x/24/198708natblock
188.26.221.x/24/1857269natblock
188.26.189.x/24/178708natblock
188.26.125.x/24/168708natblock
188.27.253.x/24/158708natblock
188.24.253.x/24/148708natblock
188.30.253.x/24/13206067natblock
188.18.253.x/24/1212389natblock
188.10.253.x/24/113269natblock
188.58.253.x/24/1016135natblock
188.90.253.x/24/950266natblock
188.154.253.x/24/86730natblock

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