Logo

Session Report

Summary:
Test run at: 2019-11-19 20:09:36 GMT
Client Prefix (v4): 185.250.240.x/24
Client AS (v4): 43260 (AS43260)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable received
Largest spoofable neighbor prefix length /10
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 (185.250.240.x/24) can spoof 4194303 neighboring addresses (within your /10 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.250.240.x/24/3143260yes
185.250.240.x/24/3043260yes
185.250.240.x/24/2943260yes
185.250.240.x/24/2843260yes
185.250.240.x/24/2743260yes
185.250.240.x/24/2643260yes
185.250.240.x/24/2543260yes
185.250.240.x/24/2443260yes
185.250.241.x/24/2361135yes
185.250.242.x/24/2243260yes
185.250.244.x/24/21UNROUTEDno
185.250.248.x/24/2031400yes
185.250.224.x/24/1948983no
185.250.208.x/24/18174yes
185.250.176.x/24/17204382yes
185.250.112.x/24/16210182yes
185.251.240.x/24/15204354yes
185.248.240.x/24/1459919yes
185.254.240.x/24/13137001yes
185.242.240.x/24/129009yes
185.234.240.x/24/11198004yes
185.218.240.x/24/1015576yes
185.186.240.x/24/9UNROUTEDno
185.122.240.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