Logo

Session Report

Summary:
Test run at: 2018-10-10 14:00:37 GMT
Client Prefix (v4): 192.134.5.x/24
Client AS (v4): 2485 (NIC-FR-SITES-SQY-TH3)
IPv4 Probes: 124
Client Prefix (v6): 2a01:cb04:1xx::/40
Client AS (v6): 3215 (AS3215)
IPv6 Probes: 82
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length none/64
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 (192.134.5.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
192.134.5.x/24/312485natblock
192.134.5.x/24/302485natblock
192.134.5.x/24/292485natblock
192.134.5.x/24/282485natblock
192.134.5.x/24/272485natblock
192.134.5.x/24/262485natblock
192.134.5.x/24/252485natblock
192.134.5.x/24/242485natblock
192.134.4.x/24/232485natblock
192.134.7.x/24/222485natblock
192.134.1.x/24/212486natblock
192.134.13.x/24/202200natblock
192.134.21.x/24/192200natblock
192.134.37.x/24/182200natblock
192.134.69.x/24/172200natblock
192.134.133.x/24/163215natblock
192.135.5.x/24/157046natblock
192.132.5.x/24/1432281natblock
192.130.5.x/24/131759natblock
192.142.5.x/24/1236916natblock
192.150.5.x/24/111313natblock
192.166.5.x/24/10UNROUTEDnatblock
192.198.5.x/24/9395421natblock
192.6.5.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 probes:
Spoofed source addressDestinationReceived
2001:48d0:101:501:ec4:7aff:fea8:71a82001:48d0:101:501::242no
2001:4978:1fb:6400::d22001:48d0:101:501::242no
2001:49aa:111:aa00::112001:48d0:101:501::242no
fd11:1111:1111::11112001:48d0:101:501::242no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a01:cb04:1xx::/40/1203215yes
2a01:cb04:1xx::/40/1123215yes
2a01:cb04:1xx::/40/1043215yes
2a01:cb04:1xx::/40/963215yes
2a01:cb04:1xx::/40/883215yes
2a01:cb04:1xx::/40/803215yes
2a01:cb04:1xx::/40/723215yes
2a01:cb04:1xx::/40/643215yes
2a01:cb04:1xx::/40/563215no
2a01:cb04:1xx::/40/483215no
2a01:cb04:1xx::/40/403215no
2a01:cb04:81xx::/40/323215no
2a01:cb84:1xx::/40/245511no
2a01:4b04:1xx::/40/16UNROUTEDno

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 (but that netblock is within the source AS)
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