Logo

Session Report

Summary:
Test run at: 2019-09-05 09:34:44 GMT
Client Prefix (v4): 193.146.130.x/24
Client AS (v4): 766 (RedIRIS)
IPv4 Probes: 69
Client Prefix (v6): 2001:720:4xx::/40
Client AS (v6): 766 (RedIRIS)
IPv6 Probes: 60
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedunknown
Routable blockedunknown
Largest spoofable neighbor prefix length nonenone

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 (193.146.130.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
193.146.130.x/24/31766sendto
193.146.130.x/24/30766sendto
193.146.130.x/24/29766sendto
193.146.130.x/24/28766sendto
193.146.130.x/24/27766sendto
193.146.130.x/24/26766sendto
193.146.130.x/24/25766sendto
193.146.130.x/24/24766sendto
193.146.131.x/24/23766sendto
193.146.128.x/24/22766sendto
193.146.134.x/24/21766sendto
193.146.138.x/24/20766sendto
193.146.146.x/24/19766sendto
193.146.162.x/24/18766sendto
193.146.194.x/24/17766sendto
193.146.2.x/24/16766natblock
193.147.130.x/24/15766sendto
193.144.130.x/24/14766sendto
193.150.130.x/24/1360592sendto
193.154.130.x/24/121901sendto
193.130.130.x/24/11702sendto
193.178.130.x/24/1033885sendto
193.210.130.x/24/91759sendto
193.18.130.x/24/8UNROUTEDsendto

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.
sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.

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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:720:4xx::/40/120766sendto
2001:720:4xx::/40/112766sendto
2001:720:4xx::/40/104766sendto
2001:720:4xx::/40/96766sendto
2001:720:4xx::/40/88766sendto
2001:720:4xx::/40/80766sendto
2001:720:4xx::/40/72766sendto
2001:720:4xx::/40/64766sendto
2001:720:4xx::/40/56766sendto
2001:720:4xx::/40/48766sendto
2001:720:4xx::/40/40766sendto
2001:720:84xx::/40/32766sendto
2001:7a0:4xx::/40/2415782sendto
2001:8720:4xx::/40/161221sendto

Meaning of status in Received column:

sendtoThe spoofer client was unable to send spoofed headers due to an operating system restriction.
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