create wintun interface failed

[yanggis]

Hi, I used nebula 1.5.2 on windows 10 to setup a lan network. when I run nebula with a config file, but it ended with an error. Here is the error info: C:\nebula> ./nebula -config c:/nebula/config.yml time="2022-07-01T10:55:15+08:00" level=info msg="Firewall rule added" firewallRule="map[caName: caSha: direction:outgoing endPort:0 groups:[] host:any ip: proto:0 startPort:0]" time="2022-07-01T10:55:15+08:00" level=info msg="Firewall rule added" firewallRule="map[caName: caSha: direction:incoming endPort:0 groups:[] host:any ip: proto:0 startPort:0]" time="2022-07-01T10:55:15+08:00" level=info msg="Firewall started" firewallHash=21716b47a7a140e448077fe66c31b4b42f232e996818d7dd1c6c4991e066dbdb 2022/07/01 10:55:15 Using existing driver 0.14 2022/07/01 10:55:15 Creating adapter 2022/07/01 10:55:15 Failed to set adapter name "" time="2022-07-01T10:55:15+08:00" level=error msg="Failed to get a tun/tap device" error="create Wintun interface failed, create TUN device failed: Error creating interface: The parameter is incorrect."

Could you guys give a hand, how to fix this issue? Many thanks.

[yanggis]

I don't why the adapter name is "", null. This could be the cause to the failure.

[nbrownus]

What value do you have for tun.dev in your config?

[yanggis]

What value do you have for tun.dev in your config?

Hi nbrownus, Thanks for the reply. I dont have any config option for tun.dev; I also checked the config templete, it doesnt have such option too. The config works well on linux, but not on windows 10.

[coccigelus]

I have same exactly issue. 2024/05/11 04:39:16 Using existing driver 0.14 2024/05/11 04:39:16 Creating adapter 2024/05/11 04:39:16 Failed to set adapter name "" 2024/05/11 04:39:17 Using existing driver 0.14 2024/05/11 04:39:17 Creating adapter 2024/05/11 04:39:17 Failed to set adapter name "" time="2024-05-11T04:39:17-05:00" level=error msg="Failed to get a tun/tap device" error="create Wintun interface failed, create TUN device failed: Error creating interface: The parameter is incorrect."

[hmoffatt]

I found I just had to set the interface name in the config.

[coccigelus]

Thank You for the answer,

Still I am facing issues:

PS C:\Nebula> .\nebula.exe -config config-lighthouse.yaml

time="2024-05-11T11:26:25-05:00" level=debug msg="Client nebula certificate" cert="NebulaCertificate {\n\tDetails {\n\t\tName: server-usa\n\t\tIps: [\n\t\t\t192.168.100.1/24\n\t\t]\n\t\tSubnets: []\n\t\tGroups: []\n\t\tNot before: 2024-05-11 03:45:30 -0500 CDT\n\t\tNot After: 2025-05-11 03:42:06 -0500 CDT\n\t\tIs CA: false\n\t\tIssuer: f9f3a2b40b1bb1c2d9d67422c64d0a9f4787178bcfa52db4339c98c459e1baa3\n\t\tPublic key: 9f03b7a1750208c4930d9843cdfbaf7826c6b28d150eba3e7f42dec62690254a\n\t\tCurve: CURVE25519\n\t}\n\tFingerprint: b372f848a7c15e759a6049b2a4cad5ff9046ca744614cee71df3974dffd155d0\n\tSignature: ccdef27df4aceecb434256c726773c4477a507e4093c49e8d22334050fb5ce313a41aa3f8102f9c1811f63429cab8979e387c35309169fde61a97565e0389f08\n}"

time="2024-05-11T11:26:25-05:00" level=debug msg="Trusted CA fingerprints" fingerprints="[f9f3a2b40b1bb1c2d9d67422c64d0a9f4787178bcfa52db4339c98c459e1baa3]"

time="2024-05-11T11:26:25-05:00" level=info msg="Firewall rule added" firewallRule="map[caName: caSha: direction:outgoing endPort:0 groups:[] host:any ip: localIp: proto:0 startPort:0]"

time="2024-05-11T11:26:25-05:00" level=info msg="Firewall rule added" firewallRule="map[caName: caSha: direction:incoming endPort:0 groups:[] host:any ip: localIp: proto:0 startPort:0]"

time="2024-05-11T11:26:25-05:00" level=info msg="Firewall started" firewallHashes="SHA:498215dec4e5687a2353f51c10838c113bd1af35ef72b8e8c9f536986ada5417,FNV:2782948616"

2024/05/11 11:26:25 Using existing driver 0.14

2024/05/11 11:26:25 Creating adapter

2024/05/11 11:26:25 Failed to set adapter name ""

time="2024-05-11T11:26:25-05:00" level=debug msg="Failed to create wintun device, retrying" error="Error creating interface: The parameter is incorrect."

2024/05/11 11:26:25 Using existing driver 0.14

2024/05/11 11:26:25 Creating adapter

2024/05/11 11:26:25 Failed to set adapter name ""

time="2024-05-11T11:26:25-05:00" level=error msg="Failed to get a tun/tap device" error="create Wintun interface failed, create TUN device failed: Error creating interface: The parameter is incorrect."

Config-lighthouse.yar

lighthouse:

am_lighthouse: true

interval: 60

hosts: []

listen:

host: 0.0.0.0

port: 4242

interface: Ethernet

punchy:

punch: true

static_host_map:

No static mapping needed for lighthouse

pki:

ca: C:\Nebula\ca.crt

cert: C:\Nebula\server-usa.crt

key: C:\Nebula\server-usa.key

firewall:

inbound:

- port: any

  proto: any

  host: any

outbound:

- port: any

  proto: any

  host: any

logging:

level: debug

format: text # or 'json' if you prefer structured logs

From: Hamish Moffatt @.> Sent: Saturday, May 11, 2024 5:50 AM To: slackhq/nebula @.> Cc: coccigelus @.>; Comment @.> Subject: Re: [slackhq/nebula] create wintun interface failed (Issue #704)

I found I just had to set the interface name in the config.

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[hmoffatt]

Your config doesn't have a [tun] section and dev: setting ?

[johnmaguire]

We'll continue discussion of @coccigelus's issue over here: https://github.com/slackhq/nebula/issues/1145