Session Report
Summary:
Test run at: 2020-08-13 22:15:13 GMT
Client Prefix (v4): 23.89.175.x/24
Client AS (v4): 18978 (ENZUINC-US)
IPv4 Probes: 75
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
blocked |
Largest spoofable neighbor prefix length |
/24 |
Spoof status key |
---|
received | Spoofed packet was received. | ✔ | Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. |
rewritten | Spoofed packet was received, but the source address was changed en route. |
blocked | Spoofed packet was not received, but unspoofed packet was. |
unknown | Neither spoofed nor unspoofed packet was received. |
IPv4 Adjacent Netblock Testing:
Your host (23.89.175.x/24) can spoof 255 neighboring addresses (within your /24 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
23.89.175.x/24 | /31 | 18978 | yes |
23.89.175.x/24 | /30 | 18978 | natblock |
23.89.175.x/24 | /29 | 18978 | yes |
23.89.175.x/24 | /28 | 18978 | natblock |
23.89.175.x/24 | /27 | 18978 | natblock |
23.89.175.x/24 | /26 | 18978 | natblock |
23.89.175.x/24 | /25 | 18978 | natblock |
23.89.175.x/24 | /24 | 18978 | yes |
23.89.174.x/24 | /23 | 18978 | natblock |
23.89.173.x/24 | /22 | 18978 | natblock |
23.89.171.x/24 | /21 | 18978 | natblock |
23.89.167.x/24 | /20 | 18978 | natblock |
23.89.191.x/24 | /19 | 18978 | natblock |
23.89.143.x/24 | /18 | 18978 | natblock |
23.89.239.x/24 | /17 | 18978 | natblock |
23.89.47.x/24 | /16 | 18978 | natblock |
23.88.175.x/24 | /15 | 18978 | natblock |
23.91.175.x/24 | /14 | 36493 | natblock |
23.93.175.x/24 | /13 | 7065 | natblock |
23.81.175.x/24 | /12 | 19148 | natblock |
23.73.175.x/24 | /11 | 16625 | natblock |
23.121.175.x/24 | /10 | 7018 | natblock |
23.25.175.x/24 | /9 | 7922 | natblock |
23.217.175.x/24 | /8 | 16625 | natblock |
Meaning of status in Received column:
yes | Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) |
natblock | Spoofed 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
able to spoof routable, non-adjacent source addresses through the
first 1 IP hop(s).
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.