Session Report
Summary:
Test run at: 2017-01-10 22:57:05 GMT
Client Prefix (v4): 163.7.172.x/24
Client AS (v4): 38300 (REANNZ-RD-NZ-AP)
IPv4 Probes: 104
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 |
Private -
RFC1918 |
blocked |
Routable |
✔ | received |
Largest spoofable neighbor prefix length |
/8 |
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 (163.7.172.x/24) can spoof 16777215 neighboring addresses (within your /8 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
163.7.172.x/24 | /31 | 38300 | yes |
163.7.172.x/24 | /30 | 38300 | yes |
163.7.172.x/24 | /29 | 38300 | yes |
163.7.172.x/24 | /28 | 38300 | yes |
163.7.172.x/24 | /27 | 38300 | yes |
163.7.172.x/24 | /26 | 38300 | yes |
163.7.172.x/24 | /25 | 38300 | yes |
163.7.172.x/24 | /24 | 38300 | yes |
163.7.173.x/24 | /23 | 38300 | yes |
163.7.174.x/24 | /22 | 38300 | yes |
163.7.168.x/24 | /21 | 38022 | yes |
163.7.164.x/24 | /20 | 38022 | yes |
163.7.188.x/24 | /19 | UNROUTED | yes |
163.7.140.x/24 | /18 | 132709 | yes |
163.7.236.x/24 | /17 | UNROUTED | yes |
163.7.44.x/24 | /16 | 38140 | yes |
163.6.172.x/24 | /15 | 210 | yes |
163.5.172.x/24 | /14 | 56339 | yes |
163.3.172.x/24 | /13 | UNROUTED | yes |
163.15.172.x/24 | /12 | 1659 | yes |
163.23.172.x/24 | /11 | 1659 | yes |
163.39.172.x/24 | /10 | UNROUTED | yes |
163.71.172.x/24 | /9 | UNROUTED | yes |
163.135.172.x/24 | /8 | 4673 | yes |
Meaning of status in Received column:
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 9 IP hop(s).
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
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