Session Report
Summary:
Test run at: 2017-04-24 10:29:10 GMT
Client Prefix (v4): 45.119.81.x/24
Client AS (v4): 131386 (LVSS-AS-VN)
IPv4 Probes: 90
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
blocked |
Largest spoofable neighbor prefix length |
/21 |
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 (45.119.81.x/24) can spoof 2047 neighboring addresses (within your /21 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
45.119.81.x/24 | /31 | 131386 | yes |
45.119.81.x/24 | /30 | 131386 | yes |
45.119.81.x/24 | /29 | 131386 | yes |
45.119.81.x/24 | /28 | 131386 | yes |
45.119.81.x/24 | /27 | 131386 | yes |
45.119.81.x/24 | /26 | 131386 | yes |
45.119.81.x/24 | /25 | 131386 | yes |
45.119.81.x/24 | /24 | 131386 | yes |
45.119.80.x/24 | /23 | 131386 | yes |
45.119.83.x/24 | /22 | 131386 | yes |
45.119.85.x/24 | /21 | 131344 | yes |
45.119.89.x/24 | /20 | 55507 | no |
45.119.65.x/24 | /19 | UNROUTED | no |
45.119.113.x/24 | /18 | 18229 | no |
45.119.17.x/24 | /17 | 9829 | no |
45.119.209.x/24 | /16 | 27176 | no |
45.118.81.x/24 | /15 | 9829 | no |
45.117.81.x/24 | /14 | 131353 | no |
45.115.81.x/24 | /13 | UNROUTED | no |
45.127.81.x/24 | /12 | 9829 | no |
45.103.81.x/24 | /11 | 37069 | no |
45.87.81.x/24 | /10 | UNROUTED | no |
45.55.81.x/24 | /9 | 14061 | no |
45.247.81.x/24 | /8 | 24863 | 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 |
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.
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