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Session Report

Summary:
Test run at: 2017-01-11 02:47:14 GMT
Client Prefix (v4): 163.7.172.x/24
Client AS (v4): 38300 (REANNZ-RD-NZ-AP)
IPv4 Probes: 104
Outbound spoofing summary (from the client to our server)
Source address type IPv4
Private - RFC1918 blocked
Routable blocked
Largest spoofable neighbor prefix length /22
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 (163.7.172.x/24) can spoof 1023 neighboring addresses (within your /22 prefix)


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
163.7.172.x/24/3138300yes
163.7.172.x/24/3038300yes
163.7.172.x/24/2938300yes
163.7.172.x/24/2838300yes
163.7.172.x/24/2738300yes
163.7.172.x/24/2638300yes
163.7.172.x/24/2538300yes
163.7.172.x/24/2438300yes
163.7.173.x/24/2338300yes
163.7.174.x/24/2238300yes
163.7.168.x/24/2138022no
163.7.164.x/24/2038022no
163.7.188.x/24/19UNROUTEDno
163.7.140.x/24/18132709no
163.7.236.x/24/17UNROUTEDno
163.7.44.x/24/1638140no
163.6.172.x/24/15210no
163.5.172.x/24/1456339no
163.3.172.x/24/13UNROUTEDno
163.15.172.x/24/121659no
163.23.172.x/24/111659no
163.39.172.x/24/10UNROUTEDno
163.71.172.x/24/9UNROUTEDno
163.135.172.x/24/84673no

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)

IPv4 Outbound Filtering Depth:

The tracefilter test found your host unable to spoof routable, non-adjacent source addresses through even the first IP hop.
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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