Session Report
Summary:
Test run at: 2016-12-16 03:25:43 GMT
Client Prefix (v4): 73.45.226.x/24
Client AS (v4): 7922 (COMCAST-7922)
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 (73.45.226.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
73.45.226.x/24 | /31 | 7922 | natblock |
73.45.226.x/24 | /30 | 7922 | natblock |
73.45.226.x/24 | /29 | 7922 | natblock |
73.45.226.x/24 | /28 | 7922 | natblock |
73.45.226.x/24 | /27 | 7922 | natblock |
73.45.226.x/24 | /26 | 7922 | natblock |
73.45.226.x/24 | /25 | 7922 | natblock |
73.45.226.x/24 | /24 | 7922 | natblock |
73.45.227.x/24 | /23 | 7922 | natblock |
73.45.224.x/24 | /22 | 7922 | natblock |
73.45.230.x/24 | /21 | 7922 | natblock |
73.45.234.x/24 | /20 | 7922 | natblock |
73.45.242.x/24 | /19 | 7922 | natblock |
73.45.194.x/24 | /18 | 7922 | natblock |
73.45.162.x/24 | /17 | 7922 | natblock |
73.45.98.x/24 | /16 | 7922 | natblock |
73.44.226.x/24 | /15 | 7922 | natblock |
73.47.226.x/24 | /14 | 7922 | natblock |
73.41.226.x/24 | /13 | 7922 | natblock |
73.37.226.x/24 | /12 | 7922 | natblock |
73.61.226.x/24 | /11 | 7922 | natblock |
73.13.226.x/24 | /10 | 7922 | natblock |
73.109.226.x/24 | /9 | 7922 | natblock |
73.173.226.x/24 | /8 | 7922 | 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.