Logo

Session Report

Summary:
Test run at: 2017-05-06 07:01:13 GMT
Client Prefix (v4): 12.0.1.x/24
Client AS (v4): 7018 (ATT-INTERNET4)
IPv4 Probes: 105
Client Prefix (v6): 2001:1890:11xx::/40
Client AS (v6): 7018 (ATT-INTERNET4)
IPv6 Probes: 77
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA unknownblocked
Routable unknownblocked
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 (12.0.1.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
12.0.1.x/24/317018no
12.0.1.x/24/307018no
12.0.1.x/24/297018no
12.0.1.x/24/287018no
12.0.1.x/24/277018no
12.0.1.x/24/267018no
12.0.1.x/24/257018no
12.0.1.x/24/247018no
12.0.0.x/24/237018no
12.0.3.x/24/227018no
12.0.5.x/24/217018no
12.0.9.x/24/207018no
12.0.17.x/24/197018no
12.0.33.x/24/1840544no
12.0.65.x/24/177018no
12.0.129.x/24/167018no
12.1.1.x/24/157018no
12.2.1.x/24/147018no
12.4.1.x/24/137018no
12.8.1.x/24/127018no
12.16.1.x/24/117018no
12.32.1.x/24/107018no
12.64.1.x/24/97018no
12.128.1.x/24/87018no

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
2001:4978:1fb:6400::d22001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:49aa:111:aa00::112001:388:1:5001:21c:c0ff:fea2:4a3ano
fd11:1111:1111::11112001:388:1:5001:21c:c0ff:fea2:4a3ano
2001:4978:1fb:6400::d22001:410:102:1::78no
2001:49aa:111:aa00::112001:410:102:1::78no
fd11:1111:1111::11112001:410:102:1::78no
2001:4978:1fb:6400::d22001:410:90ff::5no
2001:49aa:111:aa00::112001:410:90ff::5no
fd11:1111:1111::11112001:410:90ff::5no
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
2001:4978:1fb:6400::d22001:48d0:101:501::247no
2001:49aa:111:aa00::112001:48d0:101:501::247no
fd11:1111:1111::11112001:48d0:101:501::247no
2001:4978:1fb: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
2001:4978:1fb: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
2001:4978:1fb:6400::d22001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cno
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
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
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:1890:11xx::/40/1207018no
2001:1890:11xx::/40/1127018no
2001:1890:11xx::/40/1047018no
2001:1890:11xx::/40/967018no
2001:1890:11xx::/40/887018no
2001:1890:11xx::/40/807018no
2001:1890:11xx::/40/727018no
2001:1890:11xx::/40/647018no
2001:1890:11xx::/40/567018no
2001:1890:11xx::/40/487018no
2001:1890:11xx::/40/407018no
2001:1890:91xx::/40/327018no
2001:1810:11xx::/40/2414116no
2001:9890:11xx::/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.
Last Modified