Session Report
Summary:
Test run at: 2017-05-31 14:37:41 GMT
Client Prefix (v4): 88.159.1.x/24
Client AS (v4): 39309 (KPN-SMS)
IPv4 Probes: 131
| 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 (88.159.1.x/24) can spoof 0 neighboring addresses
| Spoofed source address (anon) | Prefix
Length | ASN of spoofed
source address | Received |
|---|
| 88.159.1.x/24 | /31 | 39309 | natblock |
| 88.159.1.x/24 | /30 | 39309 | natblock |
| 88.159.1.x/24 | /29 | 39309 | natblock |
| 88.159.1.x/24 | /28 | 39309 | natblock |
| 88.159.1.x/24 | /27 | 39309 | natblock |
| 88.159.1.x/24 | /26 | 39309 | natblock |
| 88.159.1.x/24 | /25 | 39309 | natblock |
| 88.159.1.x/24 | /24 | 39309 | natblock |
| 88.159.0.x/24 | /23 | 39309 | natblock |
| 88.159.3.x/24 | /22 | 39309 | natblock |
| 88.159.5.x/24 | /21 | 39309 | natblock |
| 88.159.9.x/24 | /20 | 39309 | natblock |
| 88.159.17.x/24 | /19 | 39309 | natblock |
| 88.159.33.x/24 | /18 | 39309 | natblock |
| 88.159.65.x/24 | /17 | 39309 | natblock |
| 88.159.129.x/24 | /16 | 39309 | natblock |
| 88.158.1.x/24 | /15 | 15471 | natblock |
| 88.157.1.x/24 | /14 | 2860 | natblock |
| 88.155.1.x/24 | /13 | 34058 | natblock |
| 88.151.1.x/24 | /12 | 16171 | natblock |
| 88.143.1.x/24 | /11 | UNROUTED | natblock |
| 88.191.1.x/24 | /10 | 12322 | natblock |
| 88.223.1.x/24 | /9 | 39354 | natblock |
| 88.31.1.x/24 | /8 | 3352 | 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.
