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Session Report

Summary:
Test run at: 2021-04-23 18:52:55 GMT
Client Prefix (v4): 91.214.78.x/24
Client AS (v4): 44303 (SERGEY-MUTIN-AS)
IPv4 Probes: 66
Client Prefix (v6): 2a00:1e6a:xx::/40
Client AS (v6): 44303 (SERGEY-MUTIN-AS)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenblocked
Routable blockedblocked
Largest spoofable neighbor prefix length /23/48

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 (91.214.78.x/24) can spoof 511 neighboring addresses (within your /23 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
91.214.78.x/24/3144303natblock
91.214.78.x/24/3044303natblock
91.214.78.x/24/2944303natblock
91.214.78.x/24/2844303natblock
91.214.78.x/24/2744303natblock
91.214.78.x/24/2644303natblock
91.214.78.x/24/2544303natblock
91.214.78.x/24/2444303natblock
91.214.79.x/24/2344303yes
91.214.76.x/24/2249373natblock
91.214.74.x/24/2149360natblock
91.214.70.x/24/2049542natblock
91.214.94.x/24/19UNROUTEDnatblock
91.214.110.x/24/18UNROUTEDnatblock
91.214.14.x/24/1749256natblock
91.214.206.x/24/1649531natblock
91.215.78.x/24/15201224natblock
91.212.78.x/24/14UNROUTEDnatblock
91.210.78.x/24/1320670natblock
91.222.78.x/24/1256812natblock
91.198.78.x/24/11204053natblock
91.246.78.x/24/1059990natblock
91.150.78.x/24/98400natblock
91.86.78.x/24/847377natblock

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 1 IP hop(s).
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::1592001:48d0:101:501::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
2001:48d0:101:501::1592001:48d0:101:501::247no
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:48d0:101:501::1592001:610:510:115:192:42:115:98no
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98no
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
2001:48d0:101:501::1592001:630:212:225:225:90ff:fe0c:45a6no
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6no
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6no
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:48d0:101:501::1592001:770:1c:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
2001:48d0:101:501::1592001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:4978:1fb:6400::d22001:df0:4:800:21c:c0ff:feb2:ad5fno
2001:49aa:111:aa00::112001:df0:4:800:21c:c0ff:feb2:ad5fno
fd11:1111:1111::11112001:df0:4:800:21c:c0ff:feb2:ad5fno
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a00:1e6a:xx::/40/12044303yes
2a00:1e6a:xx::/40/11244303yes
2a00:1e6a:xx::/40/10444303yes
2a00:1e6a:xx::/40/9644303yes
2a00:1e6a:xx::/40/8844303yes
2a00:1e6a:xx::/40/8044303yes
2a00:1e6a:xx::/40/7244303yes
2a00:1e6a:xx::/40/6444303yes
2a00:1e6a:xx::/40/5644303yes
2a00:1e6a:xx::/40/4844303yes
2a00:1e6a:xx::/40/4049373no
2a00:1e6a:80xx::/40/3249373no
2a00:1eea:xx::/40/24UNROUTEDno
2a00:9e6a:xx::/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.
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