Session Report
Summary:
Test run at: 2020-07-13 06:58:40 GMT
Client Prefix (v4): 61.140.70.x/24
Client AS (v4): 4134 (CHINANET-BACKBONE)
IPv4 Probes: 75
| 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 (61.140.70.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 61.140.70.x/24 | /31 | 4134 | sendto |
| 61.140.70.x/24 | /30 | 4134 | sendto |
| 61.140.70.x/24 | /29 | 4134 | sendto |
| 61.140.70.x/24 | /28 | 4134 | sendto |
| 61.140.70.x/24 | /27 | 4134 | sendto |
| 61.140.70.x/24 | /26 | 4134 | sendto |
| 61.140.70.x/24 | /25 | 4134 | sendto |
| 61.140.70.x/24 | /24 | 4134 | sendto |
| 61.140.71.x/24 | /23 | 4134 | sendto |
| 61.140.68.x/24 | /22 | 4134 | sendto |
| 61.140.66.x/24 | /21 | 4134 | sendto |
| 61.140.78.x/24 | /20 | 4134 | sendto |
| 61.140.86.x/24 | /19 | 4134 | sendto |
| 61.140.102.x/24 | /18 | 4134 | sendto |
| 61.140.6.x/24 | /17 | 4813 | sendto |
| 61.140.198.x/24 | /16 | 4134 | sendto |
| 61.141.70.x/24 | /15 | 4134 | sendto |
| 61.142.70.x/24 | /14 | 4134 | sendto |
| 61.136.70.x/24 | /13 | 4837 | sendto |
| 61.132.70.x/24 | /12 | 4134 | sendto |
| 61.156.70.x/24 | /11 | 4837 | sendto |
| 61.172.70.x/24 | /10 | 4812 | sendto |
| 61.204.70.x/24 | /9 | 2516 | sendto |
| 61.12.70.x/24 | /8 | 45820 | 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.
