Session Report
Test run at: 2023-04-06 17:15:02 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 IPv4 IPv6 Private - RFC1918 or ULA ✔ blocked received Routable ✔ blocked received Largest spoofable neighbor prefix length /22 /16
Spoof status key received Spoofed packet was received. ✔ Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. rewritten Spoofed packet was received, but the source address was changed en route. blocked Spoofed packet was not received, but unspoofed packet was. unknown Neither spoofed nor unspoofed packet was received.
IPv4 Adjacent Netblock Testing:
Your host (37.123.199.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 37.123.199.x/24 /31 41378 yes 37.123.199.x/24 /30 41378 yes 37.123.199.x/24 /29 41378 yes 37.123.199.x/24 /28 41378 yes 37.123.199.x/24 /27 41378 yes 37.123.199.x/24 /26 41378 yes 37.123.199.x/24 /25 41378 yes 37.123.199.x/24 /24 41378 yes 37.123.198.x/24 /23 41378 yes 37.123.197.x/24 /22 41378 yes 37.123.195.x/24 /21 41378 no 37.123.207.x/24 /20 35378 no 37.123.215.x/24 /19 UNROUTED no 37.123.231.x/24 /18 49232 no 37.123.135.x/24 /17 8473 no 37.123.71.x/24 /16 42912 no 37.122.199.x/24 /15 206405 no 37.121.199.x/24 /14 35819 no 37.127.199.x/24 /13 34400 no 37.115.199.x/24 /12 15895 no 37.107.199.x/24 /11 25019 no 37.91.199.x/24 /10 3320 no 37.59.199.x/24 /9 16276 no 37.251.199.x/24 /8 UNROUTED no Meaning of status in Received column:
no Packets spoofed from adjacent netblock were not received, probably due to blocking yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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 probes:
IPv6 Adjacent Netblock Testing:
Spoofed source address Destination Received 2001:48d0:101:501::159 2001:40b0:7500:280::5458:517a yes 2001:4978:1fb:6400::d2 2001:40b0:7500:280::5458:517a yes 2001:49aa:111:aa00::11 2001:40b0:7500:280::5458:517a yes fd11:1111:1111::1111 2001:40b0:7500:280::5458:517a yes 2001:48d0:101:501::159 2001:48d0:101:501::242 yes 2001:4978:1fb:6400::d2 2001:48d0:101:501::242 yes 2001:49aa:111:aa00::11 2001:48d0:101:501::242 yes fd11:1111:1111::1111 2001:48d0:101:501::242 yes 2001:48d0:101:501::159 2001:48d0:101:501::247 yes 2001:4978:1fb:6400::d2 2001:48d0:101:501::247 yes 2001:49aa:111:aa00::11 2001:48d0:101:501::247 yes fd11:1111:1111::1111 2001:48d0:101:501::247 yes 2001:48d0:101:501::159 2001:610:510:115:192:42:115:98 yes 2001:4978:1fb:6400::d2 2001:610:510:115:192:42:115:98 no 2001:49aa:111:aa00::11 2001:610:510:115:192:42:115:98 no fd11:1111:1111::1111 2001:610:510:115:192:42:115:98 no 2001:48d0:101:501::159 2001:630:212:225:225:90ff:fe0c:45a6 yes 2001:4978:1fb:6400::d2 2001:630:212:225:225:90ff:fe0c:45a6 no 2001:49aa:111:aa00::11 2001:630:212:225:225:90ff:fe0c:45a6 no fd11:1111:1111::1111 2001:630:212:225:225:90ff:fe0c:45a6 no 2001:48d0:101:501::159 2001:770:1c:7:225:90ff:fe0c:acb4 yes 2001:4978:1fb:6400::d2 2001:770:1c:7:225:90ff:fe0c:acb4 yes 2001:49aa:111:aa00::11 2001:770:1c:7:225:90ff:fe0c:acb4 yes fd11:1111:1111::1111 2001:770:1c:7:225:90ff:fe0c:acb4 no
Summary:
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 2a0e:aa00:1xx::/40 /120 41378 yes 2a0e:aa00:1xx::/40 /112 41378 yes 2a0e:aa00:1xx::/40 /104 41378 yes 2a0e:aa00:1xx::/40 /96 41378 yes 2a0e:aa00:1xx::/40 /88 41378 yes 2a0e:aa00:1xx::/40 /80 41378 yes 2a0e:aa00:1xx::/40 /72 41378 yes 2a0e:aa00:1xx::/40 /64 41378 yes 2a0e:aa00:1xx::/40 /56 41378 yes 2a0e:aa00:1xx::/40 /48 41378 yes 2a0e:aa00:1xx::/40 /40 UNROUTED yes 2a0e:aa00:81xx::/40 /32 UNROUTED yes 2a0e:aa80:1xx::/40 /24 UNROUTED yes 2a0e:2a00:1xx::/40 /16 UNROUTED yes Meaning of status in Received column:
yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)
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.