Session Report
Summary:
Test run at: 2020-09-10 06:00:51 GMT
Client Prefix (v4): 217.11.208.x/24
Client AS (v4): 15576 (NTS)
IPv4 Probes: 75
Client Prefix (v6): 2a00:c38:xx::/40
Client AS (v6): 15576 (NTS)
| 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 (217.11.208.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 217.11.208.x/24 | /31 | 15576 | sendto |
| 217.11.208.x/24 | /30 | 15576 | sendto |
| 217.11.208.x/24 | /29 | 15576 | sendto |
| 217.11.208.x/24 | /28 | 15576 | sendto |
| 217.11.208.x/24 | /27 | 15576 | sendto |
| 217.11.208.x/24 | /26 | 15576 | sendto |
| 217.11.208.x/24 | /25 | 15576 | sendto |
| 217.11.208.x/24 | /24 | 15576 | sendto |
| 217.11.209.x/24 | /23 | 15576 | sendto |
| 217.11.210.x/24 | /22 | 15576 | sendto |
| 217.11.212.x/24 | /21 | 15576 | sendto |
| 217.11.216.x/24 | /20 | 15576 | sendto |
| 217.11.192.x/24 | /19 | 15613 | sendto |
| 217.11.240.x/24 | /18 | 21430 | sendto |
| 217.11.144.x/24 | /17 | 21263 | sendto |
| 217.11.80.x/24 | /16 | 3302 | sendto |
| 217.10.208.x/24 | /15 | 12302 | sendto |
| 217.9.208.x/24 | /14 | 57084 | sendto |
| 217.15.208.x/24 | /13 | 15589 | sendto |
| 217.3.208.x/24 | /12 | 3320 | sendto |
| 217.27.208.x/24 | /11 | 44302 | sendto |
| 217.43.208.x/24 | /10 | 2856 | sendto |
| 217.75.208.x/24 | /9 | 47232 | sendto |
| 217.139.208.x/24 | /8 | 20928 | 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
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.
