Session Report
Summary:
Test run at: 2023-05-24 02:50:58 GMT
Client Prefix (v4): 141.193.68.x/24
Client AS (v4): 36231 (TEMPEST-HOSTING)
IPv4 Probes: 60
| 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 (141.193.68.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 141.193.68.x/24 | /31 | 36231 | no |
| 141.193.68.x/24 | /30 | 36231 | no |
| 141.193.68.x/24 | /29 | 36231 | no |
| 141.193.68.x/24 | /28 | 36231 | no |
| 141.193.68.x/24 | /27 | 36231 | no |
| 141.193.68.x/24 | /26 | 36231 | no |
| 141.193.68.x/24 | /25 | 36231 | no |
| 141.193.68.x/24 | /24 | 36231 | no |
| 141.193.69.x/24 | /23 | UNROUTED | no |
| 141.193.70.x/24 | /22 | 393914 | no |
| 141.193.64.x/24 | /21 | 13580 | no |
| 141.193.76.x/24 | /20 | UNROUTED | no |
| 141.193.84.x/24 | /19 | 19377 | no |
| 141.193.100.x/24 | /18 | 54920 | no |
| 141.193.4.x/24 | /17 | 396503 | no |
| 141.193.196.x/24 | /16 | 54509 | no |
| 141.192.68.x/24 | /15 | 1342 | no |
| 141.195.68.x/24 | /14 | 205019 | no |
| 141.197.68.x/24 | /13 | UNROUTED | no |
| 141.201.68.x/24 | /12 | 1109 | no |
| 141.209.68.x/24 | /11 | 27274 | no |
| 141.225.68.x/24 | /10 | 14048 | no |
| 141.129.68.x/24 | /9 | 16988 | no |
| 141.65.68.x/24 | /8 | 680 | no |
Meaning of status in Received column:
| no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
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:
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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
