Logo

Session Report

Summary:
Test run at: 2022-07-11 13:08:17 GMT
Client Prefix (v4): 198.150.47.x/24
Client AS (v4): 2381 (WISCNET1-AS)
IPv4 Probes: 60
Client Prefix (v6): 2001:4e0:10xx::/40
Client AS (v6): 2381 (WISCNET1-AS)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownunknown
Routable unknownunknown
Largest spoofable neighbor prefix length nonenone
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 (198.150.47.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
198.150.47.x/24/312381natblock
198.150.47.x/24/302381natblock
198.150.47.x/24/292381natblock
198.150.47.x/24/282381natblock
198.150.47.x/24/272381natblock
198.150.47.x/24/262381natblock
198.150.47.x/24/252381natblock
198.150.47.x/24/242381natblock
198.150.46.x/24/232381natblock
198.150.45.x/24/222381natblock
198.150.43.x/24/212381natblock
198.150.39.x/24/202381natblock
198.150.63.x/24/192381natblock
198.150.15.x/24/182381natblock
198.150.111.x/24/172381natblock
198.150.175.x/24/162381natblock
198.151.47.x/24/15UNROUTEDnatblock
198.148.47.x/24/14UNROUTEDnatblock
198.146.47.x/24/1319957natblock
198.158.47.x/24/12UNROUTEDnatblock
198.134.47.x/24/11UNROUTEDnatblock
198.182.47.x/24/10UNROUTEDnatblock
198.214.47.x/24/93354natblock
198.22.47.x/24/8UNROUTEDnatblock

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 unable to spoof routable, non-adjacent source addresses through even the first IP hop.
IPv6 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.

  

  
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:4e0:10xx::/40/1202381natblock
2001:4e0:10xx::/40/1122381natblock
2001:4e0:10xx::/40/1042381natblock
2001:4e0:10xx::/40/962381natblock
2001:4e0:10xx::/40/882381natblock
2001:4e0:10xx::/40/802381natblock
2001:4e0:10xx::/40/722381natblock
2001:4e0:10xx::/40/642381natblock
2001:4e0:10xx::/40/562381natblock
2001:4e0:10xx::/40/482381natblock
2001:4e0:10xx::/40/402381natblock
2001:4e0:90xx::/40/322381natblock
2001:460:10xx::/40/243561natblock
2001:84e0:10xx::/40/161221natblock

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.
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