Session Report
Summary:
Test run at: 2020-08-25 22:27:19 GMT
Client Prefix (v4): 177.54.158.x/24
Client AS (v4): 262287
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 |
none |
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 (177.54.158.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
177.54.158.x/24 | /31 | 262287 | natblock |
177.54.158.x/24 | /30 | 262287 | natblock |
177.54.158.x/24 | /29 | 262287 | natblock |
177.54.158.x/24 | /28 | 262287 | natblock |
177.54.158.x/24 | /27 | 262287 | natblock |
177.54.158.x/24 | /26 | 262287 | natblock |
177.54.158.x/24 | /25 | 262287 | natblock |
177.54.158.x/24 | /24 | 262287 | natblock |
177.54.159.x/24 | /23 | 262287 | natblock |
177.54.156.x/24 | /22 | 262287 | natblock |
177.54.154.x/24 | /21 | 262287 | natblock |
177.54.150.x/24 | /20 | 262287 | natblock |
177.54.142.x/24 | /19 | 262456 | natblock |
177.54.190.x/24 | /18 | 52991 | natblock |
177.54.222.x/24 | /17 | 28596 | natblock |
177.54.30.x/24 | /16 | 262447 | natblock |
177.55.158.x/24 | /15 | 262505 | natblock |
177.52.158.x/24 | /14 | 27715 | natblock |
177.50.158.x/24 | /13 | 26615 | natblock |
177.62.158.x/24 | /12 | 26599 | natblock |
177.38.158.x/24 | /11 | 52751 | natblock |
177.22.158.x/24 | /10 | 52958 | natblock |
177.118.158.x/24 | /9 | 27699 | natblock |
177.182.158.x/24 | /8 | 28573 | natblock |
Meaning of status in Received column:
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
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:
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Users Mailing List for discussion and announcements.