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Bug: OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists) #2315

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qw3r7yju4 opened this issue Jun 8, 2024 · 10 comments
Closed

Bug: OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists) #2315

qw3r7yju4 opened this issue Jun 8, 2024 · 10 comments
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Category: OpenVPN 🔐 Category: User error 🤦 Closed: 👥 Duplicate Issue duplicates an existing issue

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@qw3r7yju4
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Is this urgent?

No

Host OS

Unraid 6.12.8

CPU arch

x86_64

VPN service provider

ExpressVPN

What are you using to run the container

Unraid

What is the version of Gluetun

Latest Docker

What's the problem 🤔

VPN is dead constantly reconnecting and failing to add routes

Share your logs (at least 10 lines)

2024-06-07T20:34:50-04:00 INFO [healthcheck] program has been unhealthy for 36s: restarting VPN
2024-06-07T20:34:50-04:00 INFO [healthcheck] 👉 See https://github.com/qdm12/gluetun-wiki/blob/main/faq/healthcheck.md
2024-06-07T20:34:50-04:00 INFO [healthcheck] DO NOT OPEN AN ISSUE UNLESS YOU READ AND TRIED EACH POSSIBLE SOLUTION
2024-06-07T20:34:50-04:00 INFO [vpn] stopping
2024-06-07T20:34:50-04:00 INFO [vpn] starting
2024-06-07T20:34:50-04:00 INFO [firewall] allowing VPN connection...
2024-06-07T20:34:50-04:00 INFO [openvpn] OpenVPN 2.5.8 x86_64-alpine-linux-musl [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Nov 2 2022
2024-06-07T20:34:50-04:00 INFO [openvpn] library versions: OpenSSL 3.1.4 24 Oct 2023, LZO 2.10
2024-06-07T20:34:50-04:00 INFO [openvpn] TCP/UDP: Preserving recently used remote address: [AF_INET]191.101.177.213:1195
2024-06-07T20:34:50-04:00 INFO [openvpn] UDP link local: (not bound)
2024-06-07T20:34:50-04:00 INFO [openvpn] UDP link remote: [AF_INET]191.101.177.213:1195
2024-06-07T20:34:50-04:00 WARN [openvpn] 'link-mtu' is used inconsistently, local='link-mtu 1553', remote='link-mtu 1606'
2024-06-07T20:34:50-04:00 WARN [openvpn] 'auth' is used inconsistently, local='auth [null-digest]', remote='auth SHA512'
2024-06-07T20:34:50-04:00 WARN [openvpn] 'comp-lzo' is present in remote config but missing in local config, remote='comp-lzo'
2024-06-07T20:34:50-04:00 INFO [openvpn] [Server-10781-0a] Peer Connection Initiated with [AF_INET]191.101.177.213:1195
2024-06-07T20:34:51-04:00 INFO [openvpn] TUN/TAP device tun0 opened
2024-06-07T20:34:51-04:00 INFO [openvpn] /sbin/ip link set dev tun0 up mtu 1500
2024-06-07T20:34:51-04:00 INFO [openvpn] /sbin/ip link set dev tun0 up
2024-06-07T20:34:51-04:00 INFO [openvpn] /sbin/ip addr add dev tun0 local 10.169.27.137 peer 10.169.27.138
2024-06-07T20:34:51-04:00 ERROR [openvpn] OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists)
2024-06-07T20:34:51-04:00 WARN [openvpn] Previous error details: Linux route add command failed: external program exited with error status: 2
2024-06-07T20:34:51-04:00 INFO [openvpn] UID set to nonrootuser
2024-06-07T20:34:51-04:00 INFO [openvpn] Initialization Sequence Completed
2024-06-07T20:35:06-04:00 ERROR [vpn] getting public IP address information: fetching information: Get "https://ipinfo.io/": context deadline exceeded (Client.Timeout exceeded while awaiting headers)

Share your configuration

docker run
  -d
  --name='gluetunvpn'
  --net='bridge'
  -e TZ="America/New_York"
  -e HOST_OS="Unraid"
  -e HOST_HOSTNAME="Mediaserver"
  -e HOST_CONTAINERNAME="gluetunvpn"
  -e 'TZ'='America/New_York'
  -e 'VPN_SERVICE_PROVIDER'='expressvpn'
  -e 'VPN_TYPE'='openvpn'
  -e 'VPN_INTERFACE'='tun0'
  -e 'VPN_ENDPOINT_PORT'=''
  -e 'VPN_ENDPOINT_IP'=''
  -e 'OPENVPN_PROTOCOL'='udp'
  -e 'OPENVPN_USER'='username'
  -e 'OPENVPN_PASSWORD'='password'
  -e 'OPENVPN_VERSION'='2.5'
  -e 'OPENVPN_VERBOSITY'='1'
  -e 'OPENVPN_FLAGS'=''
  -e 'OPENVPN_CIPHERS'=''
  -e 'OPENVPN_AUTH'=''
  -e 'OPENVPN_PROCESS_USER'='no'
  -e 'OPENVPN_IPV6'='off'
  -e 'OPENVPN_CUSTOM_CONFIG'=''
  -e 'WIREGUARD_IMPLEMENTATION'='auto'
  -e 'WIREGUARD_PRIVATE_KEY'=''
  -e 'WIREGUARD_PRESHARED_KEY'=''
  -e 'WIREGUARD_PUBLIC_KEY'=''
  -e 'WIREGUARD_ADDRESSES'=''
  -e 'SERVER_REGIONS'=''
  -e 'SERVER_COUNTRIES'='USA'
  -e 'SERVER_CITIES'='Miami'
  -e 'SERVER_NAMES'=''
  -e 'SERVER_HOSTNAMES'=''
  -e 'FIREWALL'='on'
  -e 'FIREWALL_VPN_INPUT_PORTS'=''
  -e 'FIREWALL_INPUT_PORTS'=''
  -e 'FIREWALL_OUTBOUND_SUBNETS'='192.168.1.0/24'
  -e 'FIREWALL_DEBUG'='off'
  -e 'LOG_LEVEL'='info'
  -e 'DOT'='on'
  -e 'DOT_PROVIDERS'='cloudflare'
  -e 'DOT_PRIVATE_ADDRESS'='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:7f00:1/104,::ffff:a00:0/104,::ffff:a9fe:0/112,::ffff:ac10:0/108,::ffff:c0a8:0/112'
  -e 'DOT_VERBOSITY'='1'
  -e 'DOT_VERBOSITY_DETAILS'='0'
  -e 'DOT_VALIDATION_LOGLEVEL'='0'
  -e 'DOT_CACHING'='on'
  -e 'DOT_IPV6'='off'
  -e 'BLOCK_MALICIOUS'='on'
  -e 'BLOCK_SURVEILLANCE'='off'
  -e 'BLOCK_ADS'='off'
  -e 'UNBLOCK'=''
  -e 'DNS_UPDATE_PERIOD'='24h'
  -e 'DNS_ADDRESS'=''
  -e 'DNS_KEEP_NAMESERVER'='on'
  -e 'HTTPPROXY'='off'
  -e 'HTTPPROXY_LOG'='off'
  -e 'HTTPPROXY_USER'=''
  -e 'HTTPPROXY_PASSWORD'=''
  -e 'HTTPPROXY_STEALTH'='off'
  -e 'SHADOWSOCKS'='off'
  -e 'SHADOWSOCKS_LOG'='off'
  -e ':8388'=':38388'
  -e 'SHADOWSOCKS_PASSWORD'=''
  -e 'SHADOWSOCKS_CIPHER'='chacha20-ietf-poly1305'
  -e 'HEALTH_SERVER_ADDRESS'='127.0.0.1:9999'
  -e 'HEALTH_TARGET_ADDRESS'='github.com:443'
  -e 'HEALTH_VPN_DURATION_INITIAL'='6s'
  -e 'HEALTH_VPN_DURATION_ADDITION'='5s'
  -e 'UPDATER_PERIOD'='0'
  -e 'PUBLICIP_FILE'='/gluetun/ip'
  -e 'PUBLICIP_PERIOD'='12h'
  -e 'VERSION_INFORMATION'='on'
  -e 'HTTP_CONTROL_SERVER_LOG'='on'
  -e 'PUID'='1000'
  -e 'PGID'='1000'
  -l net.unraid.docker.managed=dockerman
  -l net.unraid.docker.webui='http://[IP]:[PORT:8000]'
  -l net.unraid.docker.icon='https://raw.githubusercontent.com/qdm12/gluetun/master/doc/logo_256.png'
  -p '38888:8888/tcp'
  -p '8113:8080/tcp'
  -p '8000:8000/tcp'
  -v '/mnt/user/appdata/gluetun':'/gluetun':'rw'
  --cap-add=NET_ADMIN
  --restart always 'qmcgaw/gluetun'
812a7c9d42a9e718c53752c1bba887962db83819d2acbba1b0dc29edb8ddcb41
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github-actions bot commented Jun 8, 2024

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

@qw3r7yju4 qw3r7yju4 changed the title Bug: ERROR [openvpn] OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists)Bug: Jun 8, 2024
@qw3r7yju4 qw3r7yju4 changed the title ERROR [openvpn] OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists)Bug: ERROR [openvpn] OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists) Bug: Jun 8, 2024
@jflad17
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jflad17 commented Jun 10, 2024

I have the same issue with PIA. I downgraded to v3.35.0 and that seems to work a lot better now.

@qw3r7yju4
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I have the same issue with PIA. I downgraded to v3.35.0 and that seems to work a lot better now.

Just tried roll back. No joy.

@jflad17
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jflad17 commented Jun 10, 2024

I have the same issue with PIA. I downgraded to v3.35.0 and that seems to work a lot better now.

Just tried roll back. No joy.

To the same version I did? When I reverted to I think v3.37.0 it still had the issue.

@qw3r7yju4
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qw3r7yju4 commented Jun 10, 2024 •
edited by qdm12
Loading

Tried Changing Server Cities from Miami to Atlanta. Couldn't get a connection would constantly restart failing the same place. I switched back to Miami and pulled this log:

2024-06-10T16:38:05-04:00 INFO [routing] default route found: interface eth0, gateway 172.17.0.1, assigned IP 172.17.0.2 and family v4
2024-06-10T16:38:05-04:00 INFO [routing] adding route for 0.0.0.0/0
2024-06-10T16:38:05-04:00 INFO [firewall] setting allowed subnets...
2024-06-10T16:38:05-04:00 INFO [routing] default route found: interface eth0, gateway 172.17.0.1, assigned IP 172.17.0.2 and family v4
2024-06-10T16:38:05-04:00 INFO [routing] adding route for 192.168.1.0/24
2024-06-10T16:38:05-04:00 INFO TUN device is not available: open /dev/net/tun: no such file or directory; creating it...
2024-06-10T16:38:05-04:00 INFO [dns over tls] using plaintext DNS at address 1.1.1.1
2024-06-10T16:38:05-04:00 INFO [http server] http server listening on [::]:8000
2024-06-10T16:38:05-04:00 INFO [healthcheck] listening on 127.0.0.1:9999
2024-06-10T16:38:05-04:00 INFO [firewall] allowing VPN connection...
2024-06-10T16:38:05-04:00 INFO [openvpn] OpenVPN 2.5.8 x86_64-alpine-linux-musl [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Nov  2 2022
2024-06-10T16:38:05-04:00 INFO [openvpn] library versions: OpenSSL 3.1.1 30 May 2023, LZO 2.10
2024-06-10T16:38:05-04:00 INFO [openvpn] TCP/UDP: Preserving recently used remote address: [AF_INET]191.101.177.225:1195
2024-06-10T16:38:05-04:00 INFO [openvpn] UDP link local: (not bound)
2024-06-10T16:38:05-04:00 INFO [openvpn] UDP link remote: [AF_INET]191.101.177.225:1195
2024-06-10T16:38:05-04:00 WARN [openvpn] 'link-mtu' is used inconsistently, local='link-mtu 1553', remote='link-mtu 1606'
2024-06-10T16:38:05-04:00 WARN [openvpn] 'auth' is used inconsistently, local='auth [null-digest]', remote='auth SHA512'
2024-06-10T16:38:05-04:00 WARN [openvpn] 'comp-lzo' is present in remote config but missing in local config, remote='comp-lzo'
2024-06-10T16:38:05-04:00 INFO [openvpn] [Server-10780-0a] Peer Connection Initiated with [AF_INET]191.101.177.225:1195
2024-06-10T16:38:06-04:00 INFO [openvpn] TUN/TAP device tun0 opened
2024-06-10T16:38:06-04:00 INFO [openvpn] /sbin/ip link set dev tun0 up mtu 1500
2024-06-10T16:38:06-04:00 INFO [openvpn] /sbin/ip link set dev tun0 up
2024-06-10T16:38:06-04:00 INFO [openvpn] /sbin/ip addr add dev tun0 local 10.162.242.93 peer 10.162.242.94
2024-06-10T16:38:06-04:00 INFO [openvpn] UID set to nonrootuser
2024-06-10T16:38:06-04:00 INFO [openvpn] Initialization Sequence Completed
2024-06-10T16:38:06-04:00 INFO [dns over tls] downloading DNS over TLS cryptographic files
2024-06-10T16:38:11-04:00 INFO [healthcheck] program has been unhealthy for 6s: restarting VPN (see https://github.com/qdm12/gluetun/wiki/Healthcheck)
2024-06-10T16:38:11-04:00 INFO [vpn] stopping
2024-06-10T16:38:11-04:00 ERROR [vpn] cannot get version information: Get "https://api.github.com/repos/qdm12/gluetun/releases": context canceled
2024-06-10T16:38:11-04:00 INFO [vpn] starting
2024-06-10T16:38:11-04:00 INFO [firewall] allowing VPN connection...
2024-06-10T16:38:11-04:00 INFO [openvpn] OpenVPN 2.5.8 x86_64-alpine-linux-musl [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Nov  2 2022
2024-06-10T16:38:11-04:00 INFO [openvpn] library versions: OpenSSL 3.1.1 30 May 2023, LZO 2.10
2024-06-10T16:38:11-04:00 INFO [openvpn] TCP/UDP: Preserving recently used remote address: [AF_INET]191.101.177.213:1195
2024-06-10T16:38:11-04:00 INFO [openvpn] UDP link local: (not bound)
2024-06-10T16:38:11-04:00 INFO [openvpn] UDP link remote: [AF_INET]191.101.177.213:1195
2024-06-10T16:38:11-04:00 WARN [openvpn] 'link-mtu' is used inconsistently, local='link-mtu 1553', remote='link-mtu 1606'
2024-06-10T16:38:11-04:00 WARN [openvpn] 'auth' is used inconsistently, local='auth [null-digest]', remote='auth SHA512'
2024-06-10T16:38:11-04:00 WARN [openvpn] 'comp-lzo' is present in remote config but missing in local config, remote='comp-lzo'
2024-06-10T16:38:11-04:00 INFO [openvpn] [Server-10781-0a] Peer Connection Initiated with [AF_INET]191.101.177.213:1195
2024-06-10T16:38:12-04:00 INFO [openvpn] TUN/TAP device tun0 opened
2024-06-10T16:38:12-04:00 INFO [openvpn] /sbin/ip link set dev tun0 up mtu 1500
2024-06-10T16:38:12-04:00 INFO [openvpn] /sbin/ip link set dev tun0 up
2024-06-10T16:38:12-04:00 INFO [openvpn] /sbin/ip addr add dev tun0 local 10.169.46.133 peer 10.169.46.134
2024-06-10T16:38:12-04:00 INFO [openvpn] UID set to nonrootuser
2024-06-10T16:38:12-04:00 INFO [openvpn] Initialization Sequence Completed
2024-06-10T16:38:21-04:00 WARN [dns over tls] cannot update files: Get "https://www.internic.net/domain/named.root": context deadline exceeded (Client.Timeout exceeded while awaiting headers)
2024-06-10T16:38:21-04:00 INFO [dns over tls] attempting restart in 10s
2024-06-10T16:38:23-04:00 INFO [healthcheck] program has been unhealthy for 11s: restarting VPN (see https://github.com/qdm12/gluetun/wiki/Healthcheck)
2024-06-10T16:38:23-04:00 INFO [vpn] stopping
2024-06-10T16:38:23-04:00 INFO [vpn] starting
2024-06-10T16:38:23-04:00 INFO [firewall] allowing VPN connection...
2024-06-10T16:38:23-04:00 INFO [openvpn] OpenVPN 2.5.8 x86_64-alpine-linux-musl [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Nov  2 2022
2024-06-10T16:38:23-04:00 INFO [openvpn] library versions: OpenSSL 3.1.1 30 May 2023, LZO 2.10
2024-06-10T16:38:23-04:00 INFO [openvpn] TCP/UDP: Preserving recently used remote address: [AF_INET]191.101.177.225:1195
2024-06-10T16:38:23-04:00 INFO [openvpn] UDP link local: (not bound)
2024-06-10T16:38:23-04:00 INFO [openvpn] UDP link remote: [AF_INET]191.101.177.225:1195
2024-06-10T16:38:23-04:00 WARN [openvpn] 'link-mtu' is used inconsistently, local='link-mtu 1553', remote='link-mtu 1606'
2024-06-10T16:38:23-04:00 WARN [openvpn] 'auth' is used inconsistently, local='auth [null-digest]', remote='auth SHA512'
2024-06-10T16:38:23-04:00 WARN [openvpn] 'comp-lzo' is present in remote config but missing in local config, remote='comp-lzo'
2024-06-10T16:38:23-04:00 INFO [openvpn] [Server-10780-0a] Peer Connection Initiated with [AF_INET]191.101.177.225:1195
2024-06-10T16:38:24-04:00 INFO [openvpn] TUN/TAP device tun0 opened
2024-06-10T16:38:24-04:00 INFO [openvpn] /sbin/ip link set dev tun0 up mtu 1500
2024-06-10T16:38:24-04:00 INFO [openvpn] /sbin/ip link set dev tun0 up
2024-06-10T16:38:24-04:00 INFO [openvpn] /sbin/ip addr add dev tun0 local 10.162.242.97 peer 10.162.242.98
2024-06-10T16:38:24-04:00 ERROR [openvpn] OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists)
2024-06-10T16:38:24-04:00 WARN [openvpn] Previous error details: Linux route add command failed: external program exited with error status: 2
2024-06-10T16:38:24-04:00 INFO [openvpn] UID set to nonrootuser
2024-06-10T16:38:24-04:00 INFO [openvpn] Initialization Sequence Completed
2024-06-10T16:38:31-04:00 INFO [dns over tls] downloading DNS over TLS cryptographic files

@qw3r7yju4
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I have the same issue with PIA. I downgraded to v3.35.0 and that seems to work a lot better now.

Just tried roll back. No joy.

To the same version I did? When I reverted to I think v3.37.0 it still had the issue.

Yep Rolled to 3.35.0

@Obama-chan
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I tried reverting to v3.35.0 yesterday, it didn't work at first but now it is after I left the Gluetun container alone overnight.

@qw3r7yju4
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I tried reverting to v3.35.0 yesterday, it didn't work at first but now it is after I left the Gluetun container alone overnight.

Same here. I'm not touching it. Lol

@qdm12 qdm12 changed the title ERROR [openvpn] OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists) Bug: Bug: OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists) Jun 12, 2024
@qdm12
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qdm12 commented Jun 12, 2024

OpenVPN tried to add an IP route which already exists (RTNETLINK answers: File exists) is fine, and just a consequence of openvpn restarting. Nothing to worry about.

For other people having unhealthy-restart-loop issues:

Read the logs:

2024-06-07T20:34:50-04:00 INFO [healthcheck] 👉 See https://github.com/qdm12/gluetun-wiki/blob/main/faq/healthcheck.md
2024-06-07T20:34:50-04:00 INFO [healthcheck] DO NOT OPEN AN ISSUE UNLESS YOU READ AND TRIED EACH POSSIBLE SOLUTION

And if this doesn't solve it, go to #2154

If you have a definitive fix for your situation, feel free to open a new issue.

@qdm12 qdm12 closed this as not planned Won't fix, can't repro, duplicate, stale Jun 12, 2024
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Closed issues are NOT monitored, so commenting here is likely to be not seen.
If you think this is still unresolved and have more information to bring, please create another issue.

This is an automated comment setup because @qdm12 is the sole maintainer of this project
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