Session Report
Summary:
Test run at: 2016-11-16 18:56:45 GMT
Client Prefix (v4): 128.4.27.x/24
Client AS (v4): 2 (UDEL-DCN)
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 |
/16 |
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 (128.4.27.x/24) can spoof 65535 neighboring addresses (within your /16 prefix)
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
128.4.27.x/24 | /31 | 2 | yes |
128.4.27.x/24 | /30 | 2 | yes |
128.4.27.x/24 | /29 | 2 | yes |
128.4.27.x/24 | /28 | 2 | yes |
128.4.27.x/24 | /27 | 2 | yes |
128.4.27.x/24 | /26 | 2 | yes |
128.4.27.x/24 | /25 | 2 | yes |
128.4.27.x/24 | /24 | 2 | yes |
128.4.26.x/24 | /23 | 2 | yes |
128.4.25.x/24 | /22 | 2 | yes |
128.4.31.x/24 | /21 | 2 | yes |
128.4.19.x/24 | /20 | 2 | yes |
128.4.11.x/24 | /19 | 2 | yes |
128.4.59.x/24 | /18 | 2 | yes |
128.4.91.x/24 | /17 | 2 | yes |
128.4.155.x/24 | /16 | 2 | yes |
128.5.27.x/24 | /15 | 3389 | no |
128.6.27.x/24 | /14 | 46 | no |
128.0.27.x/24 | /13 | 41794 | no |
128.12.27.x/24 | /12 | 32 | no |
128.20.27.x/24 | /11 | UNROUTED | no |
128.36.27.x/24 | /10 | 29 | no |
128.68.27.x/24 | /9 | 8402 | no |
128.132.27.x/24 | /8 | 768 | 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 (but that netblock is within the source AS) |
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.
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