Session Report
Summary:
Test run at: 2016-09-25 17:33:38 GMT
Client Prefix (v4): 23.88.111.x/24
Client AS (v4): 18978 (ENZUINC-US)
IPv4 Probes: 87
| Outbound spoofing summary (from the client to our server) |
|---|
| Source address type |
IPv4 |
|---|
| Private -
RFC1918 |
blocked |
| Routable |
blocked |
| Largest spoofable neighbor prefix length |
/29 |
| 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 (23.88.111.x/24) can spoof 7 neighboring addresses (within your /29 prefix)
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 23.88.111.x/24 | /31 | 18978 | yes |
| 23.88.111.x/24 | /30 | 18978 | no |
| 23.88.111.x/24 | /29 | 18978 | yes |
| 23.88.111.x/24 | /28 | 18978 | no |
| 23.88.111.x/24 | /27 | 18978 | no |
| 23.88.111.x/24 | /26 | 18978 | no |
| 23.88.111.x/24 | /25 | 18978 | no |
| 23.88.111.x/24 | /24 | 18978 | no |
| 23.88.110.x/24 | /23 | 18978 | no |
| 23.88.109.x/24 | /22 | 18978 | no |
| 23.88.107.x/24 | /21 | 18978 | no |
| 23.88.103.x/24 | /20 | 18978 | no |
| 23.88.127.x/24 | /19 | 18978 | no |
| 23.88.79.x/24 | /18 | 18978 | no |
| 23.88.47.x/24 | /17 | 18978 | no |
| 23.88.239.x/24 | /16 | 18978 | no |
| 23.89.111.x/24 | /15 | 18978 | no |
| 23.90.111.x/24 | /14 | UNROUTED | no |
| 23.92.111.x/24 | /13 | 43650 | no |
| 23.80.111.x/24 | /12 | 15003 | no |
| 23.72.111.x/24 | /11 | 20940 | no |
| 23.120.111.x/24 | /10 | 7018 | no |
| 23.24.111.x/24 | /9 | 7922 | no |
| 23.216.111.x/24 | /8 | 1299 | 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
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:
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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.
