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Session Report

Summary:
Test run at: 2020-08-30 23:27:13 GMT
Client Prefix (v4): 37.49.230.x/24
Client AS (v4): 208666
IPv4 Probes: 75
Client Prefix (v6): 2a0d:a740:xx::/40
Client AS (v6): 209299
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 (37.49.230.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
37.49.230.x/24/31208666no
37.49.230.x/24/30208666no
37.49.230.x/24/29208666no
37.49.230.x/24/28208666no
37.49.230.x/24/27208666no
37.49.230.x/24/26208666no
37.49.230.x/24/25208666no
37.49.230.x/24/24208666no
37.49.231.x/24/23213371no
37.49.228.x/24/22213371no
37.49.226.x/24/21208666no
37.49.238.x/24/20UNROUTEDno
37.49.246.x/24/1950572no
37.49.198.x/24/1821127no
37.49.166.x/24/1712688no
37.49.102.x/24/166830no
37.48.230.x/24/15198440no
37.51.230.x/24/143320no
37.53.230.x/24/136849no
37.57.230.x/24/1213188no
37.33.230.x/24/1116086no
37.17.230.x/24/1044066no
37.113.230.x/24/951035no
37.177.230.x/24/830722no

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
2a0d:a740:xx::/40/120209299no
2a0d:a740:xx::/40/112209299no
2a0d:a740:xx::/40/104209299no
2a0d:a740:xx::/40/96209299no
2a0d:a740:xx::/40/88209299no
2a0d:a740:xx::/40/80209299no
2a0d:a740:xx::/40/72209299no
2a0d:a740:xx::/40/64209299no
2a0d:a740:xx::/40/56209299no
2a0d:a740:xx::/40/48209299no
2a0d:a740:xx::/40/40UNROUTEDno
2a0d:a740:80xx::/40/32UNROUTEDno
2a0d:a7c0:xx::/40/24UNROUTEDno
2a0d:2740: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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