Session Report
Summary:
Test run at: 2017-01-24 17:45:12 GMT
Client Prefix (v4): 200.38.208.x/24
Client AS (v4): 8151
IPv4 Probes: 104
| 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 (200.38.208.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 200.38.208.x/24 | /31 | 8151 | natblock |
| 200.38.208.x/24 | /30 | 8151 | natblock |
| 200.38.208.x/24 | /29 | 8151 | natblock |
| 200.38.208.x/24 | /28 | 8151 | natblock |
| 200.38.208.x/24 | /27 | 8151 | natblock |
| 200.38.208.x/24 | /26 | 8151 | natblock |
| 200.38.208.x/24 | /25 | 8151 | natblock |
| 200.38.208.x/24 | /24 | 8151 | natblock |
| 200.38.209.x/24 | /23 | 8151 | natblock |
| 200.38.210.x/24 | /22 | 8151 | natblock |
| 200.38.212.x/24 | /21 | 8151 | natblock |
| 200.38.216.x/24 | /20 | 8151 | natblock |
| 200.38.192.x/24 | /19 | UNROUTED | natblock |
| 200.38.240.x/24 | /18 | 6503 | natblock |
| 200.38.144.x/24 | /17 | 8151 | natblock |
| 200.38.80.x/24 | /16 | 6503 | natblock |
| 200.39.208.x/24 | /15 | UNROUTED | natblock |
| 200.36.208.x/24 | /14 | 6065 | natblock |
| 200.34.208.x/24 | /13 | 6503 | natblock |
| 200.46.208.x/24 | /12 | 21599 | natblock |
| 200.54.208.x/24 | /11 | 16629 | natblock |
| 200.6.208.x/24 | /10 | 14754 | natblock |
| 200.102.208.x/24 | /9 | 8167 | natblock |
| 200.166.208.x/24 | /8 | 4230 | natblock |
Meaning of status in Received column:
| natblock | Spoofed probe packets appear to be blocked by your local NAT or firewall rather than being rewritten with a public source address. |
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.
