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Session Report

Summary:
Test run at: 2020-10-23 16:21:30 GMT
Client Prefix (v4): 45.148.17.x/24
Client AS (v4): 197595 (OBE-LEGACY)
IPv4 Probes: 75
Client Prefix (v6): 2a07:a880:46xx::/40
Client AS (v6): 197595 (OBE-LEGACY)
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 (45.148.17.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
45.148.17.x/24/31197595natblock
45.148.17.x/24/30197595natblock
45.148.17.x/24/29197595natblock
45.148.17.x/24/28197595natblock
45.148.17.x/24/27197595natblock
45.148.17.x/24/26197595natblock
45.148.17.x/24/25197595natblock
45.148.17.x/24/24197595natblock
45.148.16.x/24/23197595natblock
45.148.19.x/24/2242675natblock
45.148.21.x/24/21UNROUTEDnatblock
45.148.25.x/24/2048806natblock
45.148.1.x/24/1948305natblock
45.148.49.x/24/18212688natblock
45.148.81.x/24/17UNROUTEDnatblock
45.148.145.x/24/16212618natblock
45.149.17.x/24/15136933natblock
45.150.17.x/24/1435913natblock
45.144.17.x/24/1358224natblock
45.156.17.x/24/12UNROUTEDnatblock
45.132.17.x/24/119002natblock
45.180.17.x/24/10269165natblock
45.212.17.x/24/937287natblock
45.20.17.x/24/87018natblock

Meaning of status in Received column:

natblockSpoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address.

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
2a07:a880:46xx::/40/120197595no
2a07:a880:46xx::/40/112197595no
2a07:a880:46xx::/40/104197595no
2a07:a880:46xx::/40/96197595no
2a07:a880:46xx::/40/88197595no
2a07:a880:46xx::/40/80197595no
2a07:a880:46xx::/40/72197595no
2a07:a880:46xx::/40/64197595no
2a07:a880:46xx::/40/56197595no
2a07:a880:46xx::/40/48197595no
2a07:a880:46xx::/40/40UNROUTEDno
2a07:a880:c6xx::/40/32UNROUTEDno
2a07:a800:46xx::/40/24UNROUTEDno
2a07:2880:46xx::/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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