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Session Report

Summary:
Test run at: 2023-03-30 16:08:40 GMT
Client Prefix (v4): 37.123.199.x/24
Client AS (v4): 41378 (KirinoNET)
IPv4 Probes: 60
Client Prefix (v6): 2a0e:aa00:1xx::/40
Client AS (v6): 41378 (KirinoNET)
IPv6 Probes: 52
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA receivedreceived
Routable receivedreceived
Largest spoofable neighbor prefix length /9/16
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 Adjacent Netblock Testing:

Your host (37.123.199.x/24) can spoof 8388607 neighboring addresses (within your /9 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.123.199.x/24/3141378yes
37.123.199.x/24/3041378yes
37.123.199.x/24/2941378yes
37.123.199.x/24/2841378yes
37.123.199.x/24/2741378yes
37.123.199.x/24/2641378yes
37.123.199.x/24/2541378yes
37.123.199.x/24/2441378yes
37.123.198.x/24/2341378yes
37.123.197.x/24/2241378yes
37.123.195.x/24/2141378yes
37.123.207.x/24/2035378yes
37.123.215.x/24/19UNROUTEDno
37.123.231.x/24/1849232yes
37.123.135.x/24/178473yes
37.123.71.x/24/1642912yes
37.122.199.x/24/15206405yes
37.121.199.x/24/1435819yes
37.127.199.x/24/1334400yes
37.115.199.x/24/1215895yes
37.107.199.x/24/1125019yes
37.91.199.x/24/103320yes
37.59.199.x/24/916276yes
37.251.199.x/24/8UNROUTEDno

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
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 10 IP hop(s).
IPv6 probes:
Spoofed source addressDestinationReceived
2001:48d0:101:501::1592001:40b0:7500:280::5458:517ayes
2001:4978:1fb:6400::d22001:40b0:7500:280::5458:517ayes
2001:49aa:111:aa00::112001:40b0:7500:280::5458:517ayes
fd11:1111:1111::11112001:40b0:7500:280::5458:517ayes
2001:48d0:101:501::1592001:48d0:101:501::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:48d0:101:501::1592001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:48d0:101:501::1592001:610:510:115:192:42:115:98yes
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:45a6yes
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:acb4yes
2001:4978:1fb:6400::d22001:770:1c:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:1c:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:1c:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2a0e:aa00:1xx::/40/12041378yes
2a0e:aa00:1xx::/40/11241378yes
2a0e:aa00:1xx::/40/10441378yes
2a0e:aa00:1xx::/40/9641378yes
2a0e:aa00:1xx::/40/8841378yes
2a0e:aa00:1xx::/40/8041378yes
2a0e:aa00:1xx::/40/7241378yes
2a0e:aa00:1xx::/40/6441378yes
2a0e:aa00:1xx::/40/5641378yes
2a0e:aa00:1xx::/40/4841378yes
2a0e:aa00:1xx::/40/40UNROUTEDyes
2a0e:aa00:81xx::/40/32UNROUTEDyes
2a0e:aa80:1xx::/40/24UNROUTEDyes
2a0e:2a00:1xx::/40/16UNROUTEDyes

Meaning of status in Received column:

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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