Session Report
Summary:
Test run at: 2020-12-09 17:22:46 GMT
Client Prefix (v4): 37.49.230.x/24
Client AS (v4): 213371 (SQUITTER-NETWORKS)
IPv4 Probes: 75
| 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 (37.49.230.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 37.49.230.x/24 | /31 | 213371 | no |
| 37.49.230.x/24 | /30 | 213371 | no |
| 37.49.230.x/24 | /29 | 213371 | no |
| 37.49.230.x/24 | /28 | 213371 | no |
| 37.49.230.x/24 | /27 | 213371 | no |
| 37.49.230.x/24 | /26 | 213371 | no |
| 37.49.230.x/24 | /25 | 213371 | no |
| 37.49.230.x/24 | /24 | 213371 | no |
| 37.49.231.x/24 | /23 | 208673 | no |
| 37.49.228.x/24 | /22 | 213371 | no |
| 37.49.226.x/24 | /21 | 213371 | no |
| 37.49.238.x/24 | /20 | UNROUTED | no |
| 37.49.246.x/24 | /19 | 50572 | no |
| 37.49.198.x/24 | /18 | 21127 | no |
| 37.49.166.x/24 | /17 | 12688 | no |
| 37.49.102.x/24 | /16 | 6830 | no |
| 37.48.230.x/24 | /15 | 198440 | no |
| 37.51.230.x/24 | /14 | 3320 | no |
| 37.53.230.x/24 | /13 | 6849 | no |
| 37.57.230.x/24 | /12 | 13188 | no |
| 37.33.230.x/24 | /11 | 16086 | no |
| 37.17.230.x/24 | /10 | 44066 | no |
| 37.113.230.x/24 | /9 | 51035 | no |
| 37.177.230.x/24 | /8 | 30722 | 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.
