Logo

Session Report

Summary:
Test run at: 2021-08-18 15:03:25 GMT
Client Prefix (v4): 185.37.181.x/24
Client AS (v4): 15605 (CONNESI)
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /22

Meaning of result status in column:

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 (185.37.181.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
185.37.181.x/24/3115605yes
185.37.181.x/24/3015605yes
185.37.181.x/24/2915605yes
185.37.181.x/24/2815605yes
185.37.181.x/24/2715605yes
185.37.181.x/24/2615605yes
185.37.181.x/24/2515605yes
185.37.181.x/24/2415605yes
185.37.180.x/24/2315605yes
185.37.183.x/24/2215605yes
185.37.177.x/24/2147474natblock
185.37.189.x/24/2062382natblock
185.37.165.x/24/1943550natblock
185.37.149.x/24/1861102natblock
185.37.245.x/24/17200071natblock
185.37.53.x/24/1648434natblock
185.36.181.x/24/15200129natblock
185.39.181.x/24/1448592natblock
185.33.181.x/24/13196763natblock
185.45.181.x/24/1260350natblock
185.53.181.x/24/1134767natblock
185.5.181.x/24/1051580natblock
185.101.181.x/24/9200607natblock
185.165.181.x/24/8UNROUTEDnatblock

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 6 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