Session Report
Summary:
Test run at: 2016-11-24 07:58:07 GMT
Client Prefix (v4): 81.170.140.x/24
Client AS (v4): 8473 (BAHNHOF)
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 (81.170.140.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
81.170.140.x/24 | /31 | 8473 | no |
81.170.140.x/24 | /30 | 8473 | no |
81.170.140.x/24 | /29 | 8473 | no |
81.170.140.x/24 | /28 | 8473 | no |
81.170.140.x/24 | /27 | 8473 | no |
81.170.140.x/24 | /26 | 8473 | no |
81.170.140.x/24 | /25 | 8473 | no |
81.170.140.x/24 | /24 | 8473 | no |
81.170.141.x/24 | /23 | 8473 | no |
81.170.142.x/24 | /22 | 8473 | no |
81.170.136.x/24 | /21 | 8473 | no |
81.170.132.x/24 | /20 | 8473 | no |
81.170.156.x/24 | /19 | 8473 | no |
81.170.172.x/24 | /18 | 8473 | no |
81.170.204.x/24 | /17 | 8473 | no |
81.170.12.x/24 | /16 | 9105 | no |
81.171.140.x/24 | /15 | 8426 | no |
81.168.140.x/24 | /14 | 12741 | no |
81.174.140.x/24 | /13 | 6871 | no |
81.162.140.x/24 | /12 | 57598 | no |
81.186.140.x/24 | /11 | 8248 | no |
81.138.140.x/24 | /10 | 2856 | no |
81.234.140.x/24 | /9 | 3301 | no |
81.42.140.x/24 | /8 | 3352 | 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:
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.