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Session Report

Summary:
Test run at: 2021-05-25 18:11:58 GMT
Client Prefix (v4): 192.222.181.x/24
Client AS (v4): 1403 (EBOX)
IPv4 Probes: 66
Client Prefix (v6): 2600:d401:5xx::/40
Client AS (v6): 1403 (EBOX)
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

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.

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


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
192.222.181.x/24/311403natblock
192.222.181.x/24/301403natblock
192.222.181.x/24/291403natblock
192.222.181.x/24/281403natblock
192.222.181.x/24/271403natblock
192.222.181.x/24/261403natblock
192.222.181.x/24/251403natblock
192.222.181.x/24/241403natblock
192.222.180.x/24/231403natblock
192.222.183.x/24/221403natblock
192.222.177.x/24/211403natblock
192.222.189.x/24/201403natblock
192.222.165.x/24/191403natblock
192.222.149.x/24/181403natblock
192.222.245.x/24/171403natblock
192.222.53.x/24/16UNROUTEDnatblock
192.223.181.x/24/15UNROUTEDnatblock
192.220.181.x/24/142914natblock
192.218.181.x/24/13UNROUTEDnatblock
192.214.181.x/24/121239natblock
192.206.181.x/24/1146630natblock
192.254.181.x/24/1046606natblock
192.158.181.x/24/910406natblock
192.94.181.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
2600:d401:5xx::/40/1201403no
2600:d401:5xx::/40/1121403no
2600:d401:5xx::/40/1041403no
2600:d401:5xx::/40/961403no
2600:d401:5xx::/40/881403no
2600:d401:5xx::/40/801403no
2600:d401:5xx::/40/721403no
2600:d401:5xx::/40/641403no
2600:d401:5xx::/40/561403no
2600:d401:5xx::/40/481403no
2600:d401:5xx::/40/401403no
2600:d401:85xx::/40/321403no
2600:d481:5xx::/40/24UNROUTEDno
2600:5401:5xx::/40/1619108no

Meaning of status in Received column:

noPackets spoofed from adjacent netblock were not received, probably due to blocking
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.
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