Session Report
Summary:
Test run at: 2023-09-10 22:27:25 GMT
Client Prefix (v4): 176.97.210.x/24
Client AS (v4): 49581
IPv4 Probes: 63
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
blocked |
| Routable |
blocked |
| Largest spoofable neighbor prefix length |
/27 |
| 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 (176.97.210.x/24) can spoof 31 neighboring addresses (within your /27 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 176.97.210.x/24 | /31 | 49581 | yes |
| 176.97.210.x/24 | /30 | 49581 | yes |
| 176.97.210.x/24 | /29 | 49581 | yes |
| 176.97.210.x/24 | /28 | 49581 | yes |
| 176.97.210.x/24 | /27 | 49581 | yes |
| 176.97.210.x/24 | /26 | 49581 | no |
| 176.97.210.x/24 | /25 | 49581 | no |
| 176.97.210.x/24 | /24 | 49581 | no |
| 176.97.211.x/24 | /23 | 7393 | no |
| 176.97.208.x/24 | /22 | 48031 | no |
| 176.97.214.x/24 | /21 | 212616 | no |
| 176.97.218.x/24 | /20 | 60631 | no |
| 176.97.194.x/24 | /19 | 35608 | no |
| 176.97.242.x/24 | /18 | 60529 | no |
| 176.97.146.x/24 | /17 | 9009 | no |
| 176.97.82.x/24 | /16 | 198073 | no |
| 176.96.210.x/24 | /15 | UNROUTED | no |
| 176.99.210.x/24 | /14 | 35598 | no |
| 176.101.210.x/24 | /13 | 49588 | no |
| 176.105.210.x/24 | /12 | 24812 | no |
| 176.113.210.x/24 | /11 | 58055 | no |
| 176.65.210.x/24 | /10 | 197207 | no |
| 176.33.210.x/24 | /9 | 34984 | no |
| 176.225.210.x/24 | /8 | 35819 | no |
Meaning of status in Received column:
| no | Packets spoofed from adjacent netblock were not received, probably due to blocking |
| yes | Packets spoofed from adjacent netblock were received (but that netblock is within the source AS) |
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.
