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Session Report

Summary:
Test run at: 2021-09-03 02:25:14 GMT
Client Prefix (v4): 158.51.126.x/24
Client AS (v4): 20150 (ANYNODE)
IPv4 Probes: 66
Client Prefix (v6): 2604:5040:xx::/40
Client AS (v6): 20150 (ANYNODE)
IPv6 Probes: 56
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA blockedblocked
Routable blockedblocked
Largest spoofable neighbor prefix length none/64
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 (158.51.126.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
158.51.126.x/24/3120150no
158.51.126.x/24/3020150no
158.51.126.x/24/2920150no
158.51.126.x/24/2820150no
158.51.126.x/24/2720150no
158.51.126.x/24/2620150no
158.51.126.x/24/2520150no
158.51.126.x/24/2420150no
158.51.127.x/24/2320150no
158.51.124.x/24/2220150no
158.51.122.x/24/2162563no
158.51.118.x/24/2020220no
158.51.110.x/24/1918526no
158.51.94.x/24/18399203no
158.51.62.x/24/1747002no
158.51.254.x/24/1653812no
158.50.126.x/24/15UNROUTEDno
158.49.126.x/24/14766no
158.55.126.x/24/13UNROUTEDno
158.59.126.x/24/1225807no
158.35.126.x/24/117018no
158.19.126.x/24/101600no
158.115.126.x/24/9UNROUTEDno
158.179.126.x/24/839550no

Meaning of status in Received column:

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

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:
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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2604:5040:xx::/40/12020150yes
2604:5040:xx::/40/11220150yes
2604:5040:xx::/40/10420150yes
2604:5040:xx::/40/9620150yes
2604:5040:xx::/40/8820150yes
2604:5040:xx::/40/8020150yes
2604:5040:xx::/40/7220150yes
2604:5040:xx::/40/6420150yes
2604:5040:xx::/40/5620150no
2604:5040:xx::/40/4820150no
2604:5040:xx::/40/4020150no
2604:5040:80xx::/40/3220150no
2604:50c0:xx::/40/2420150no
2604:d040:xx::/40/16396879no

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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