Session Report
Summary:
Test run at: 2020-08-20 00:36:33 GMT
Client Prefix (v4): 81.17.24.x/24
Client AS (v4): 51852 (PLI-AS)
IPv4 Probes: 75
Client Prefix (v6): 2a02:29b8:dcxx::/40
Client AS (v6): 51852 (PLI-AS)
IPv6 Probes: 68
Outbound spoofing summary (from the client to our server) |
Source address type |
IPv4 | IPv6 |
Private -
RFC1918 or ULA |
✔ | unknown | unknown |
Routable |
✔ | unknown | unknown |
Largest spoofable neighbor prefix length |
none | 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. |
Warnings:
- ⚠️ Your host was unable to source even non-spoofed IPv4 UDP traffic to our servers. A firewall, router or other middlebox is preventing our testing. To test your provider's network further, you must remove the firewall or router and connect directly.
- ⚠️ Your host was unable to source even non-spoofed IPv6 UDP traffic to our servers. A firewall, router or other middlebox is preventing our testing. To test your provider's network further, you must remove the firewall or router and connect directly.
IPv4 Adjacent Netblock Testing:
Your host (81.17.24.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
81.17.24.x/24 | /31 | 51852 | natblock |
81.17.24.x/24 | /30 | 51852 | natblock |
81.17.24.x/24 | /29 | 51852 | natblock |
81.17.24.x/24 | /28 | 51852 | natblock |
81.17.24.x/24 | /27 | 51852 | natblock |
81.17.24.x/24 | /26 | 51852 | natblock |
81.17.24.x/24 | /25 | 51852 | natblock |
81.17.24.x/24 | /24 | 51852 | natblock |
81.17.25.x/24 | /23 | 51852 | natblock |
81.17.26.x/24 | /22 | 51852 | natblock |
81.17.28.x/24 | /21 | 51852 | natblock |
81.17.16.x/24 | /20 | 51852 | natblock |
81.17.8.x/24 | /19 | 24588 | natblock |
81.17.56.x/24 | /18 | 205544 | natblock |
81.17.88.x/24 | /17 | 28787 | natblock |
81.17.152.x/24 | /16 | 34602 | natblock |
81.16.24.x/24 | /15 | 44853 | natblock |
81.19.24.x/24 | /14 | 35283 | natblock |
81.21.24.x/24 | /13 | 30848 | natblock |
81.25.24.x/24 | /12 | 47913 | natblock |
81.1.24.x/24 | /11 | 15557 | natblock |
81.49.24.x/24 | /10 | 3215 | natblock |
81.81.24.x/24 | /9 | UNROUTED | natblock |
81.145.24.x/24 | /8 | 2856 | 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.
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon) | Prefix Length | ASN of spoofed source address | Received |
2a02:29b8:dcxx::/40 | /120 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /112 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /104 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /96 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /88 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /80 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /72 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /64 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /56 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /48 | 51852 | natblock |
2a02:29b8:dcxx::/40 | /40 | 51852 | natblock |
2a02:29b8:5cxx::/40 | /32 | 51852 | natblock |
2a02:2938:dcxx::/40 | /24 | UNROUTED | natblock |
2a02:a9b8:dcxx::/40 | /16 | UNROUTED | 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. |
Summary:
The results from all tests are aggregated to produce a summary
"State of IP Spoofing" report.
Feedback:
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and invite users to join the Spoofer
Users Mailing List for discussion and announcements.