Bug: FIREWALL_OUTBOUND_SUBNETS does not seem to be working

[syncme-kodi]

Is this urgent?

No

Host OS

Mac OS

CPU arch

None

VPN service provider

Surfshark

What are you using to run the container

docker-compose

What is the version of Gluetun

13532c8

What's the problem 🤔

I have Plex as a local app on Mac, and Overseerr using the gluetun network. I have connected Plex to Overseerr using the API. However, Overseerr is not able to connect to plex on the LAN IP 192.168.1.39.

I have added the following config for firewall FIREWALL_OUTBOUND_SUBNETS=192.168.1.0/24, but it does not seem to work.

I have also tried to ping the LAN ip from the Gluetun container but it times out

Share your logs (at least 10 lines)

========================================
========================================
=============== gluetun ================
========================================
=========== Made with ❤️ by ============
======= https://github.com/qdm12 =======
========================================
========================================

Running version latest built on 2025-01-22T08:30:14.628Z (commit 13532c8)

🔧 Need help? ☕ Discussion? https://github.com/qdm12/gluetun/discussions/new/choose
🐛 Bug? ✨ New feature? https://github.com/qdm12/gluetun/issues/new/choose
💻 Email? quentin.mcgaw@gmail.com
💰 Help me? https://www.paypal.me/qmcgaw https://github.com/sponsors/qdm12
2025-04-08T10:58:04-04:00 INFO [routing] default route found: interface eth0, gateway 172.20.0.1, assigned IP 172.20.0.2 and family v4
2025-04-08T10:58:04-04:00 INFO [routing] local ethernet link found: eth0
2025-04-08T10:58:04-04:00 INFO [routing] local ipnet found: 172.20.0.0/16
2025-04-08T10:58:04-04:00 INFO [firewall] enabling...
2025-04-08T10:58:04-04:00 INFO [firewall] enabled successfully
2025-04-08T10:58:04-04:00 INFO [storage] merging by most recent 20776 hardcoded servers and 20776 servers read from /gluetun/servers.json
2025-04-08T10:58:04-04:00 INFO Alpine version: 3.20.5
2025-04-08T10:58:04-04:00 INFO OpenVPN 2.5 version: 2.5.10
2025-04-08T10:58:04-04:00 INFO OpenVPN 2.6 version: 2.6.11
2025-04-08T10:58:04-04:00 INFO IPtables version: v1.8.10
2025-04-08T10:58:04-04:00 INFO Settings summary:
├── VPN settings:
|   ├── VPN provider settings:
|   |   ├── Name: surfshark
|   |   └── Server selection settings:
|   |       ├── VPN type: wireguard
|   |       ├── Countries: [REMOVED]
|   |       ├── Cities: [REMOVED]
|   |       └── Wireguard selection settings:
|   |           ├── Endpoint IP address: [REMOVED]
|   |           └── Server public key: [REMOVED]
|   └── Wireguard settings:
|       ├── Private key: [REMOVED]
|       ├── Interface addresses:
|       |   └── 10.14.0.2/16
|       ├── Allowed IPs:
|       |   ├── 0.0.0.0/0
|       |   └── ::/0
|       └── Network interface: tun0
|           └── MTU: 1320
├── DNS settings:
|   ├── Keep existing nameserver(s): no
|   ├── DNS server address to use: 127.0.0.1
|   └── DNS over TLS settings:
|       ├── Enabled: yes
|       ├── Update period: every 24h0m0s
|       ├── Upstream resolvers:
|       |   └── cloudflare
|       ├── Caching: yes
|       ├── IPv6: no
|       └── DNS filtering settings:
|           ├── Block malicious: yes
|           ├── Block ads: yes
|           ├── Block surveillance: yes
|           └── Blocked IP networks:
|               ├── 127.0.0.1/8
|               ├── 10.0.0.0/8
|               ├── 172.16.0.0/12
|               ├── 192.168.0.0/16
|               ├── 169.254.0.0/16
|               ├── ::1/128
|               ├── fc00::/7
|               ├── fe80::/10
|               ├── ::ffff:127.0.0.1/104
|               ├── ::ffff:10.0.0.0/104
|               ├── ::ffff:169.254.0.0/112
|               ├── ::ffff:172.16.0.0/108
|               └── ::ffff:192.168.0.0/112
├── Firewall settings:
|   ├── Enabled: yes
|   └── Outbound subnets:
|       ├── 192.168.1.0/32
|       └── 192.168.1.1/32
├── Log settings:
|   └── Log level: info
├── Health settings:
|   ├── Server listening address: 127.0.0.1:9999
|   ├── Target address: cloudflare.com:443
|   ├── Duration to wait after success: 5s
|   ├── Read header timeout: 100ms
|   ├── Read timeout: 500ms
|   └── VPN wait durations:
|       ├── Initial duration: 6s
|       └── Additional duration: 5s
├── Shadowsocks server settings:
|   └── Enabled: no
├── HTTP proxy settings:
|   └── Enabled: no
├── Control server settings:
|   ├── Listening address: :8000
|   ├── Logging: yes
|   └── Authentication file path: /gluetun/auth/config.toml
├── Storage settings:
|   └── Filepath: /gluetun/servers.json
├── OS Alpine settings:
|   ├── Process UID: 501
|   ├── Process GID: 20
|   └── Timezone: america/new_york
├── Public IP settings:
|   ├── IP file path: /tmp/gluetun/ip
|   ├── Public IP data base API: ipinfo
|   └── Public IP data backup APIs:
|       ├── ifconfigco
|       ├── ip2location
|       └── cloudflare
├── Server data updater settings:
|   ├── Update period: 12h0m0s
|   ├── DNS address: 1.1.1.1:53
|   ├── Minimum ratio: 0.8
|   └── Providers to update: surfshark
└── Version settings:
    └── Enabled: yes
2025-04-08T10:58:04-04:00 INFO [routing] default route found: interface eth0, gateway 172.20.0.1, assigned IP 172.20.0.2 and family v4
2025-04-08T10:58:04-04:00 INFO [routing] adding route for 0.0.0.0/0
2025-04-08T10:58:04-04:00 INFO [firewall] setting allowed subnets...
2025-04-08T10:58:04-04:00 INFO [routing] default route found: interface eth0, gateway 172.20.0.1, assigned IP 172.20.0.2 and family v4
2025-04-08T10:58:04-04:00 INFO [routing] adding route for 192.168.1.0/32
2025-04-08T10:58:04-04:00 INFO [routing] adding route for 192.168.1.1/32
2025-04-08T10:58:04-04:00 INFO [dns] using plaintext DNS at address 1.1.1.1
2025-04-08T10:58:04-04:00 INFO [http server] http server listening on [::]:8000
2025-04-08T10:58:04-04:00 INFO [healthcheck] listening on 127.0.0.1:9999
2025-04-08T10:58:04-04:00 INFO [firewall] allowing VPN connection...
2025-04-08T10:58:04-04:00 INFO [wireguard] Using available kernelspace implementation
2025-04-08T10:58:04-04:00 INFO [wireguard] Connecting to [REMOVED]
2025-04-08T10:58:04-04:00 INFO [wireguard] Wireguard setup is complete. Note Wireguard is a silent protocol and it may or may not work, without giving any error message. Typically i/o timeout errors indicate the Wireguard connection is not working.
2025-04-08T10:58:04-04:00 INFO [healthcheck] healthy!
2025-04-08T10:58:04-04:00 INFO [dns] downloading hostnames and IP block lists
2025-04-08T10:58:06-04:00 INFO [dns] DNS server listening on [::]:53
2025-04-08T10:58:06-04:00 INFO [dns] ready
2025-04-08T10:58:07-04:00 INFO [ip getter] Public IP address is [REMOVED] ([REMOVED])

Share your configuration

[github-actions]

@qdm12 is more or less the only maintainer of this project and works on it in his free time.
Please:

• do not ask for updates, be patient
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  revert to an older tagged container image