Session Report
Summary:
Test run at: 2016-10-09 10:23:48 GMT
Client Prefix (v4): 37.187.20.x/24
Client AS (v4): 16276 (OVH)
IPv4 Probes: 88
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
unknown |
| Routable |
unknown |
| 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 (37.187.20.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 37.187.20.x/24 | /31 | 16276 | sendto |
| 37.187.20.x/24 | /30 | 16276 | sendto |
| 37.187.20.x/24 | /29 | 16276 | sendto |
| 37.187.20.x/24 | /28 | 16276 | sendto |
| 37.187.20.x/24 | /27 | 16276 | sendto |
| 37.187.20.x/24 | /26 | 16276 | sendto |
| 37.187.20.x/24 | /25 | 16276 | sendto |
| 37.187.20.x/24 | /24 | 16276 | sendto |
| 37.187.21.x/24 | /23 | 16276 | sendto |
| 37.187.22.x/24 | /22 | 16276 | sendto |
| 37.187.16.x/24 | /21 | 16276 | sendto |
| 37.187.28.x/24 | /20 | 16276 | sendto |
| 37.187.4.x/24 | /19 | 16276 | sendto |
| 37.187.52.x/24 | /18 | 16276 | sendto |
| 37.187.84.x/24 | /17 | 16276 | sendto |
| 37.187.148.x/24 | /16 | 16276 | sendto |
| 37.186.20.x/24 | /15 | 39912 | sendto |
| 37.185.20.x/24 | /14 | 5432 | sendto |
| 37.191.20.x/24 | /13 | 6830 | sendto |
| 37.179.20.x/24 | /12 | 30722 | sendto |
| 37.171.20.x/24 | /11 | 51207 | sendto |
| 37.155.20.x/24 | /10 | 20978 | sendto |
| 37.251.20.x/24 | /9 | 49562 | sendto |
| 37.59.20.x/24 | /8 | 16276 | 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.
