Session Report
Summary:
Test run at: 2021-08-12 04:14:32 GMT
Client Prefix (v4): 187.131.31.x/24
Client AS (v4): 8151
IPv4 Probes: 66
Client Prefix (v6): 2806:104e:xx::/40
Client AS (v6): 8151
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
unknown |
| 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 (187.131.31.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 187.131.31.x/24 | /31 | 8151 | sendto |
| 187.131.31.x/24 | /30 | 8151 | sendto |
| 187.131.31.x/24 | /29 | 8151 | sendto |
| 187.131.31.x/24 | /28 | 8151 | sendto |
| 187.131.31.x/24 | /27 | 8151 | sendto |
| 187.131.31.x/24 | /26 | 8151 | sendto |
| 187.131.31.x/24 | /25 | 8151 | sendto |
| 187.131.31.x/24 | /24 | 8151 | sendto |
| 187.131.30.x/24 | /23 | 8151 | sendto |
| 187.131.29.x/24 | /22 | 8151 | sendto |
| 187.131.27.x/24 | /21 | 8151 | sendto |
| 187.131.23.x/24 | /20 | 8151 | sendto |
| 187.131.15.x/24 | /19 | 8151 | sendto |
| 187.131.63.x/24 | /18 | 8151 | sendto |
| 187.131.95.x/24 | /17 | 8151 | sendto |
| 187.131.159.x/24 | /16 | 8151 | sendto |
| 187.130.31.x/24 | /15 | 8151 | sendto |
| 187.129.31.x/24 | /14 | UNROUTED | sendto |
| 187.135.31.x/24 | /13 | 8151 | sendto |
| 187.139.31.x/24 | /12 | 8151 | sendto |
| 187.147.31.x/24 | /11 | 8151 | sendto |
| 187.163.31.x/24 | /10 | 6503 | sendto |
| 187.195.31.x/24 | /9 | 8151 | sendto |
| 187.3.31.x/24 | /8 | 28573 | sendto |
Meaning of status in Received column:
| sendto | The spoofer client was unable to send spoofed headers due to an operating system restriction. |
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.
