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@danderson
Last active January 14, 2020 21:45
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NATprobe from hotel wifi
$ ./natprobe
NAT allocates a new ip:port for every unique 3-tuple (protocol, source ip, source port).
This is best practice for NAT devices.
This makes NAT traversal easier.
Firewall requires outbound traffic to an ip:port before allowing inbound traffic from that ip:port.
This is common practice for NAT gateways.
This makes NAT traversal more difficult.
NAT seems to try and make the public port number match the LAN port number.
NAT seems to only use one public IP for this client.
NAT seems to not block outbound UDP traffic.
$ ./natprobe --print-results --anonymize-results
Local IPs on the client:
1.1.1.1
1.1.2.2
1.1.3.3
1.1.4.4
1.1.5.5
1.1.6.6
Mapping probes:
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:60000
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:443
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:500
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:1723
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:1701
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:5061
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:5060
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:3478
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:51820
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:500
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:4500
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:51820
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:1701
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:1194
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:4500
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:1194
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:5061
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:443
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:3478
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:1723
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:5060
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.8.8:80
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:80
0.0.0.0:43634 -> 1.1.7.7:43634 -> 1.1.9.9:60000
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:4500
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:3478
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:5061
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:443
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:500
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:1194
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:60000
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:1723
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:500
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:443
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:1723
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:51820
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:1701
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:4500
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:5060
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:80
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:1701
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:5060
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:3478
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:60000
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:51820
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.9.9:5061
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:1194
0.0.0.0:51496 -> 1.1.7.7:51496 -> 1.1.8.8:80
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:80
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:3478
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:1701
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:443
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:500
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:80
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:1723
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:443
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:51820
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:5060
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:60000
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:5061
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:1194
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:5061
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:60000
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:51820
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:5060
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:4500
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:3478
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:1723
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:1701
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:500
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.8.8:4500
0.0.0.0:55743 -> 1.1.7.7:55743 -> 1.1.9.9:1194
Firewall probe with outbound traffic 0.0.0.0:41378 -> 1.1.9.9:4500
1.1.9.9:4500
NAT allocates a new ip:port for every unique 3-tuple (protocol, source ip, source ports).
This is best practice for NAT devices.
This makes NAT traversal easier.
Firewall requires outbound traffic to an ip:port before allowing inbound traffic from that ip:port.
This is common practice for NAT gateways.
This makes NAT traversal more difficult.
NAT seems to try and make the public port number match the LAN port number.
NAT seems to only use one public IP for this client.
NAT seems to not block outbound UDP traffic.
{
"LocalIPs": [
"1.1.1.1",
"1.1.2.2",
"1.1.3.3",
"1.1.4.4",
"1.1.5.5",
"1.1.6.6"
],
"MappingProbes": [
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 1194,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 1723,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 1723,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 500,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 60000,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 3478,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 1194,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 60000,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 80,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 5060,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 4500,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 443,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 4500,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 5060,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 1701,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 500,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 1701,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 51820,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 51820,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 5061,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 3478,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 80,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 5061,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 51831,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 51831,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 443,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 4500,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 5061,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 1701,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 60000,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 500,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 3478,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 5061,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 5060,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 3478,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 51820,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 80,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 1194,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 1723,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.9.9",
"Port": 443,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 5060,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 80,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
"Zone": ""
},
"Remote": {
"IP": "1.1.8.8",
"Port": 1701,
"Zone": ""
},
"Timeout": false
},
{
"Local": {
"IP": "0.0.0.0",
"Port": 52200,
"Zone": ""
},
"Mapped": {
"IP": "1.1.7.7",
"Port": 52200,
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}
}
{
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"FirewallEnforcesDestIP": true,
"FirewallEnforcesDestPort": true,
"MappingPreservesSourcePort": true,
"MultiplePublicIPs": false,
"FilteredEgress": []
}
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