Session Report
Summary:
Test run at: 2020-09-08 04:37:34 GMT
Client Prefix (v4): 138.59.18.x/24
Client AS (v4): 52423
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 (138.59.18.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
138.59.18.x/24 | /31 | 52423 | natblock |
138.59.18.x/24 | /30 | 52423 | natblock |
138.59.18.x/24 | /29 | 52423 | natblock |
138.59.18.x/24 | /28 | 52423 | natblock |
138.59.18.x/24 | /27 | 52423 | natblock |
138.59.18.x/24 | /26 | 52423 | natblock |
138.59.18.x/24 | /25 | 52423 | natblock |
138.59.18.x/24 | /24 | 52423 | natblock |
138.59.19.x/24 | /23 | 52423 | natblock |
138.59.16.x/24 | /22 | 52423 | natblock |
138.59.22.x/24 | /21 | 28201 | natblock |
138.59.26.x/24 | /20 | 27665 | natblock |
138.59.2.x/24 | /19 | 263739 | natblock |
138.59.50.x/24 | /18 | 264597 | natblock |
138.59.82.x/24 | /17 | 264093 | natblock |
138.59.146.x/24 | /16 | 264097 | natblock |
138.58.18.x/24 | /15 | UNROUTED | natblock |
138.57.18.x/24 | /14 | UNROUTED | natblock |
138.63.18.x/24 | /13 | 1715 | natblock |
138.51.18.x/24 | /12 | 239 | natblock |
138.43.18.x/24 | /11 | UNROUTED | natblock |
138.27.18.x/24 | /10 | 1464 | natblock |
138.123.18.x/24 | /9 | 46887 | natblock |
138.187.18.x/24 | /8 | UNROUTED | 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:
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.