Session Report

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| Data: Stats Summary Recent Tests Remediation Results by AS Results by Country Results by Provider |

Summary:

Test run at: 2019-08-17 14:33:35 GMT
Client Prefix (v4): 185.234.72.x/24
Client AS (v4): 30823 (COMBAHTON)
IPv4 Probes: 96
Client Prefix (v6): 2a01:367:c2xx::/40
Client AS (v6): 30823 (COMBAHTON)
IPv6 Probes: 76

Outbound spoofing summary (from the client to our server)

Source address type IPv4 IPv6

Private - RFC1918 or ULA blocked ✔ received

Routable blocked received

Largest spoofable neighbor prefix length /24 /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.

Outbound spoofing summary (from the client to our server)
Source address type	IPv4	IPv6
Private - RFC1918 or ULA	blocked	✔	received
Routable	blocked	received
Largest spoofable neighbor prefix length	/24	/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 AS Route:

This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

IPv4 Adjacent Netblock Testing:

Your host (185.234.72.x/24) can spoof 255 neighboring addresses (within your /24 prefix)

Spoofed source address (anon) Prefix
Length ASN of spoofed
source address Received

185.234.72.x/24 /31 30823 yes

185.234.72.x/24 /30 30823 yes

185.234.72.x/24 /29 30823 yes

185.234.72.x/24 /28 30823 yes

185.234.72.x/24 /27 30823 yes

185.234.72.x/24 /26 30823 yes

185.234.72.x/24 /25 30823 yes

185.234.72.x/24 /24 30823 yes

185.234.73.x/24 /23 206804 no

185.234.74.x/24 /22 UNROUTED no

185.234.76.x/24 /21 UNROUTED no

185.234.64.x/24 /20 205692 no

185.234.88.x/24 /19 201661 no

185.234.104.x/24 /18 204969 no

185.234.8.x/24 /17 UNROUTED no

185.234.200.x/24 /16 29075 no

185.235.72.x/24 /15 204925 no

185.232.72.x/24 /14 205024 no

185.238.72.x/24 /13 41508 no

185.226.72.x/24 /12 40676 no

185.250.72.x/24 /11 5610 no

185.202.72.x/24 /10 205842 no

185.170.72.x/24 /9 8473 no

185.106.72.x/24 /8 202596 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)

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
185.234.72.x/24	/31	30823	yes
185.234.72.x/24	/30	30823	yes
185.234.72.x/24	/29	30823	yes
185.234.72.x/24	/28	30823	yes
185.234.72.x/24	/27	30823	yes
185.234.72.x/24	/26	30823	yes
185.234.72.x/24	/25	30823	yes
185.234.72.x/24	/24	30823	yes
185.234.73.x/24	/23	206804	no
185.234.74.x/24	/22	UNROUTED	no
185.234.76.x/24	/21	UNROUTED	no
185.234.64.x/24	/20	205692	no
185.234.88.x/24	/19	201661	no
185.234.104.x/24	/18	204969	no
185.234.8.x/24	/17	UNROUTED	no
185.234.200.x/24	/16	29075	no
185.235.72.x/24	/15	204925	no
185.232.72.x/24	/14	205024	no
185.238.72.x/24	/13	41508	no
185.226.72.x/24	/12	40676	no
185.250.72.x/24	/11	5610	no
185.202.72.x/24	/10	205842	no
185.170.72.x/24	/9	8473	no
185.106.72.x/24	/8	202596	no

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 AS Route:

This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

IPv6 probes:

Spoofed source address Destination Received
2001:48d0:101:501::159 2001:40b0:7500:280::5458:517a yes
2001:4978:1fb:6400::d2 2001:40b0:7500:280::5458:517a yes
2001:49aa:111:aa00::11 2001:40b0:7500:280::5458:517a no
fd11:1111:1111::1111 2001:40b0:7500:280::5458:517a no
2001:48d0:101:501::159 2001:410:102:1::78 yes
2001:4978:1fb:6400::d2 2001:410:102:1::78 yes
2001:49aa:111:aa00::11 2001:410:102:1::78 yes
fd11:1111:1111::1111 2001:410:102:1::78 yes
2001:48d0:101:501::159 2001:48d0:101:501::242 yes
2001:4978:1fb:6400::d2 2001:48d0:101:501::242 yes
2001:49aa:111:aa00::11 2001:48d0:101:501::242 yes
fd11:1111:1111::1111 2001:48d0:101:501::242 yes
2001:48d0:101:501::159 2001:48d0:101:501::247 yes
2001:4978:1fb:6400::d2 2001:48d0:101:501::247 yes
2001:49aa:111:aa00::11 2001:48d0:101:501::247 yes
fd11:1111:1111::1111 2001:48d0:101:501::247 yes
2001:48d0:101:501::159 2001:610:510:115:192:42:115:98 yes
2001:4978:1fb:6400::d2 2001:610:510:115:192:42:115:98 yes
2001:49aa:111:aa00::11 2001:610:510:115:192:42:115:98 no
fd11:1111:1111::1111 2001:610:510:115:192:42:115:98 no
2001:48d0:101:501::159 2001:630:212:225:225:90ff:fe0c:45a6 yes
2001:4978:1fb:6400::d2 2001:630:212:225:225:90ff:fe0c:45a6 yes
2001:49aa:111:aa00::11 2001:630:212:225:225:90ff:fe0c:45a6 no
fd11:1111:1111::1111 2001:630:212:225:225:90ff:fe0c:45a6 no
2001:48d0:101:501::159 2001:708:40:2001:21c:c0ff:fea2:4c5c yes
2001:4978:1fb:6400::d2 2001:708:40:2001:21c:c0ff:fea2:4c5c yes
2001:49aa:111:aa00::11 2001:708:40:2001:21c:c0ff:fea2:4c5c no
fd11:1111:1111::1111 2001:708:40:2001:21c:c0ff:fea2:4c5c no
2001:48d0:101:501::159 2001:770:18:7:225:90ff:fe0c:acb4 yes
2001:4978:1fb:6400::d2 2001:770:18:7:225:90ff:fe0c:acb4 yes
2001:49aa:111:aa00::11 2001:770:18:7:225:90ff:fe0c:acb4 no
fd11:1111:1111::1111 2001:770:18:7:225:90ff:fe0c:acb4 no
2001:48d0:101:501::159 2001:df0:4:800:21c:c0ff:feb2:ad5f yes
2001:4978:1fb:6400::d2 2001:df0:4:800:21c:c0ff:feb2:ad5f yes
2001:49aa:111:aa00::11 2001:df0:4:800:21c:c0ff:feb2:ad5f yes
fd11:1111:1111::1111 2001:df0:4:800:21c:c0ff:feb2:ad5f yes
2001:48d0:101:501::159 2607:f278:2:13:ba27:ebff:fe3f:b21e yes
2001:4978:1fb:6400::d2 2607:f278:2:13:ba27:ebff:fe3f:b21e yes
2001:49aa:111:aa00::11 2607:f278:2:13:ba27:ebff:fe3f:b21e yes
fd11:1111:1111::1111 2607:f278:2:13:ba27:ebff:fe3f:b21e yes

Spoofed source address	Destination	Received
2001:48d0:101:501::159	2001:40b0:7500:280::5458:517a	yes
2001:4978:1fb:6400::d2	2001:40b0:7500:280::5458:517a	yes
2001:49aa:111:aa00::11	2001:40b0:7500:280::5458:517a	no
fd11:1111:1111::1111	2001:40b0:7500:280::5458:517a	no
2001:48d0:101:501::159	2001:410:102:1::78	yes
2001:4978:1fb:6400::d2	2001:410:102:1::78	yes
2001:49aa:111:aa00::11	2001:410:102:1::78	yes
fd11:1111:1111::1111	2001:410:102:1::78	yes
2001:48d0:101:501::159	2001:48d0:101:501::242	yes
2001:4978:1fb:6400::d2	2001:48d0:101:501::242	yes
2001:49aa:111:aa00::11	2001:48d0:101:501::242	yes
fd11:1111:1111::1111	2001:48d0:101:501::242	yes
2001:48d0:101:501::159	2001:48d0:101:501::247	yes
2001:4978:1fb:6400::d2	2001:48d0:101:501::247	yes
2001:49aa:111:aa00::11	2001:48d0:101:501::247	yes
fd11:1111:1111::1111	2001:48d0:101:501::247	yes
2001:48d0:101:501::159	2001:610:510:115:192:42:115:98	yes
2001:4978:1fb:6400::d2	2001:610:510:115:192:42:115:98	yes
2001:49aa:111:aa00::11	2001:610:510:115:192:42:115:98	no
fd11:1111:1111::1111	2001:610:510:115:192:42:115:98	no
2001:48d0:101:501::159	2001:630:212:225:225:90ff:fe0c:45a6	yes
2001:4978:1fb:6400::d2	2001:630:212:225:225:90ff:fe0c:45a6	yes
2001:49aa:111:aa00::11	2001:630:212:225:225:90ff:fe0c:45a6	no
fd11:1111:1111::1111	2001:630:212:225:225:90ff:fe0c:45a6	no
2001:48d0:101:501::159	2001:708:40:2001:21c:c0ff:fea2:4c5c	yes
2001:4978:1fb:6400::d2	2001:708:40:2001:21c:c0ff:fea2:4c5c	yes
2001:49aa:111:aa00::11	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
fd11:1111:1111::1111	2001:708:40:2001:21c:c0ff:fea2:4c5c	no
2001:48d0:101:501::159	2001:770:18:7:225:90ff:fe0c:acb4	yes
2001:4978:1fb:6400::d2	2001:770:18:7:225:90ff:fe0c:acb4	yes
2001:49aa:111:aa00::11	2001:770:18:7:225:90ff:fe0c:acb4	no
fd11:1111:1111::1111	2001:770:18:7:225:90ff:fe0c:acb4	no
2001:48d0:101:501::159	2001:df0:4:800:21c:c0ff:feb2:ad5f	yes
2001:4978:1fb:6400::d2	2001:df0:4:800:21c:c0ff:feb2:ad5f	yes
2001:49aa:111:aa00::11	2001:df0:4:800:21c:c0ff:feb2:ad5f	yes
fd11:1111:1111::1111	2001:df0:4:800:21c:c0ff:feb2:ad5f	yes
2001:48d0:101:501::159	2607:f278:2:13:ba27:ebff:fe3f:b21e	yes
2001:4978:1fb:6400::d2	2607:f278:2:13:ba27:ebff:fe3f:b21e	yes
2001:49aa:111:aa00::11	2607:f278:2:13:ba27:ebff:fe3f:b21e	yes
fd11:1111:1111::1111	2607:f278:2:13:ba27:ebff:fe3f:b21e	yes

IPv6 Adjacent Netblock Testing:

Spoofed source address (anon) Prefix
Length ASN of spoofed
source address Received

2a01:367:c2xx::/40 /120 30823 yes

2a01:367:c2xx::/40 /112 30823 yes

2a01:367:c2xx::/40 /104 30823 yes

2a01:367:c2xx::/40 /96 30823 yes

2a01:367:c2xx::/40 /88 30823 yes

2a01:367:c2xx::/40 /80 30823 yes

2a01:367:c2xx::/40 /72 30823 yes

2a01:367:c2xx::/40 /64 30823 yes

2a01:367:c2xx::/40 /56 30823 yes

2a01:367:c2xx::/40 /48 30823 yes

2a01:367:c2xx::/40 /40 30823 yes

2a01:367:42xx::/40 /32 30823 yes

2a01:3e7:c2xx::/40 /24 UNROUTED yes

2a01:8367:c2xx::/40 /16 UNROUTED yes

Meaning of status in Received column:

yes Packets spoofed from adjacent netblock were received (but that netblock is within the source AS)

Spoofed source address (anon)	Prefix Length	ASN of spoofed source address	Received
2a01:367:c2xx::/40	/120	30823	yes
2a01:367:c2xx::/40	/112	30823	yes
2a01:367:c2xx::/40	/104	30823	yes
2a01:367:c2xx::/40	/96	30823	yes
2a01:367:c2xx::/40	/88	30823	yes
2a01:367:c2xx::/40	/80	30823	yes
2a01:367:c2xx::/40	/72	30823	yes
2a01:367:c2xx::/40	/64	30823	yes
2a01:367:c2xx::/40	/56	30823	yes
2a01:367:c2xx::/40	/48	30823	yes
2a01:367:c2xx::/40	/40	30823	yes
2a01:367:42xx::/40	/32	30823	yes
2a01:3e7:c2xx::/40	/24	UNROUTED	yes
2a01:8367:c2xx::/40	/16	UNROUTED	yes

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.

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)