Logo

Session Report

Summary:
Test run at: 2022-01-17 00:00:34 GMT
Client Prefix (v4): 185.196.220.x/24
Client AS (v4): 208046 (HostSlick-Germany)
IPv4 Probes: 63
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 received
Routable received
Largest spoofable neighbor prefix length /9
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 (185.196.220.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.196.220.x/24/31208046yes
185.196.220.x/24/30208046yes
185.196.220.x/24/29208046yes
185.196.220.x/24/28208046yes
185.196.220.x/24/27208046yes
185.196.220.x/24/26208046yes
185.196.220.x/24/25208046yes
185.196.220.x/24/24208046yes
185.196.221.x/24/2343541yes
185.196.222.x/24/22UNROUTEDno
185.196.216.x/24/2143060yes
185.196.212.x/24/2031492yes
185.196.204.x/24/195413yes
185.196.252.x/24/18206077yes
185.196.156.x/24/1712605yes
185.196.92.x/24/161239yes
185.197.220.x/24/1535132yes
185.198.220.x/24/14UNROUTEDyes
185.192.220.x/24/1342612yes
185.204.220.x/24/1259919yes
185.212.220.x/24/1143791yes
185.228.220.x/24/10209529yes
185.132.220.x/24/913135yes
185.68.220.x/24/8UNROUTEDno

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 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