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Session Report

Summary:
Test run at: 2020-06-06 12:54:47 GMT
Client Prefix (v4): 172.105.58.x/24
Client AS (v4): 63949 (LINODE-AP)
IPv4 Probes: 75
Client Prefix (v6): 2400:8904:xx::/40
Client AS (v6): 63949 (LINODE-AP)
IPv6 Probes: 68
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 nonenone
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 (172.105.58.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
172.105.58.x/24/3163949no
172.105.58.x/24/3063949no
172.105.58.x/24/2963949no
172.105.58.x/24/2863949no
172.105.58.x/24/2763949no
172.105.58.x/24/2663949no
172.105.58.x/24/2563949no
172.105.58.x/24/2463949no
172.105.59.x/24/2363949no
172.105.56.x/24/2263949no
172.105.62.x/24/2163949no
172.105.50.x/24/2063949no
172.105.42.x/24/1963949no
172.105.26.x/24/1863949no
172.105.122.x/24/1763949no
172.105.186.x/24/1663949no
172.104.58.x/24/1563949no
172.107.58.x/24/1440676no
172.109.58.x/24/135650no
172.97.58.x/24/12394073no
172.121.58.x/24/1118779no
172.73.58.x/24/1011426no
172.41.58.x/24/921928no
172.233.58.x/24/8UNROUTEDno

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::1592001:770:18:7:225:90ff:fe0c:acb4no
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4no
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4no
fd11:1111:1111::11112001:770:18:7:225:90ff: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
2400:8904:xx::/40/12063949no
2400:8904:xx::/40/11263949no
2400:8904:xx::/40/10463949no
2400:8904:xx::/40/9663949no
2400:8904:xx::/40/8863949no
2400:8904:xx::/40/8063949no
2400:8904:xx::/40/7263949no
2400:8904:xx::/40/6463949no
2400:8904:xx::/40/5663949no
2400:8904:xx::/40/4863949no
2400:8904:xx::/40/4063949no
2400:8904:80xx::/40/3263949no
2400:8984:xx::/40/24UNROUTEDno
2400:904:xx::/40/16UNROUTEDno

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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