Openvpn local ip unable to accessible

S

shamseer

New Member
Feb 25, 2025
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Hello
I have open vpn setup on my synology nas and proxmox server .
The both devices are in different places. Because I have setup openVpn .
The issue i can able to access my proxmox server from synology connected network.

But I can not able to access synology ip from Proxmox. I can access from other system also.only unable to access from Proxmox.

My purpose i need to get synology shared folder to Proxmox Storage.(both devices are different place)

I try with tailscale vpn.same issues happened

How to fix this issue. I am not familiar in networking. I believe I will get the result on this post and will be fixed.
 
Last edited:
Thanks for your replay and sorry for lack of infirmatio

Client.conf File

Code: 
dev tun
tls-client

remote XXXXXXXXXXXXXX 1194

# The "float" tells OpenVPN to accept authenticated packets from any address,
# not only the address which was specified in the --remote option.
# This is useful when you are connecting to a peer which holds a dynamic address
# such as a dial-in user or DHCP client.
# (Please refer to the manual of OpenVPN for more information.)

#float

# If redirect-gateway is enabled, the client will redirect it's
# default network gateway through the VPN.
# It means the VPN connection will firstly connect to the VPN Server
# and then to the internet.
# (Please refer to the manual of OpenVPN for more information.)

redirect-gateway def1

# dhcp-option DNS: To set primary domain name server address.
# Repeat this option to set secondary DNS server addresses.

#dhcp-option DNS DNS_IP_ADDRESS

pull

# If you want to connect by Server's IPv6 address, you should use
# "proto udp6" in UDP mode or "proto tcp6-client" in TCP mode
proto udp

script-security 2


comp-lzo

reneg-sec 0

# Clients running OpenVPN 2.4 and higher will automatically upgrade from AES-256-CBC to AES-256-GCM without any configuration changes.
cipher AES-256-CBC
auth SHA512

auth-user-pass
<ca>
-----BEGIN CERTIFICATE-----
MIIFBTCCAu2gAwIBAgIQS6hSk/eaL6JzBkuoBI110DANBgkqhkiG9w0BAQsFADBP
MQswCQYDVQQGEwJVUzEpMCcGA1UEChMgSW50ZXJuZXQgU2VjdXJpdHkgUmVzZWFy
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KPpdzvvtTnOPlC7SQZSYmdunr3Bf9b77AiC/ZidstK36dRILKz7OA54=
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw
TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
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-----END CERTIFICATE-----

</ca>
key-direction 1
<tls-auth>
#
# 2048 bit OpenVPN static key
#
-----BEGIN OpenVPN Static key V1-----
b50a5451db2362afaeee2357eef25ab9
e2de1e9c9d9cdf520bf2abc40937ab6e
4123c8d0ad8784d5c9a6d770c5f63cba
5dfdc1514f38de7281040beee265066d
8169980bbb7902b6cbca3db473307ca5
077c26551bc07e5d634913338a329b11
2bacd993706b0c3aced168e0ab00bfae
daf9482956e632051290517d93773192
6ce905aab6125aaedaa54a93d4ba8169
b8117d987f3998bb4ccd76f5744607e8
cdac8df023a4446a3ttyuggsdfgjyjkuiii2c
a8a2ccebed2d538e2c43c693074e46fe
ac4169bf8a409bdab9833b061d4fada2
12aa1d34e1532398644e7981275df11b
84e4560815da7109a7710ca5bd505dc7
ac3ad6554d09c80f3d1aafa1d22ebd6e
-----END OpenVPN Static key V1-----
allow-compression yes
</tls-auth>

This is my conf file

Kindly note Synology Local Ip Range 192.168.150.xxx and proxmox 192.168.10.xxx .


Openvpn Showing Successfully Connected and on Openvpn Server it showing the client Username .


And able to access Proxmox from synology local network . Actualy the Openvpn Server inside Synology , Proxmox Setup as al client.

i am able to access synology network work from OpenVpn Client Installed Computer. That means server side there is no any issues .

When i Ping Synology Ip (192.168.150.xxx ) from Proxmox (192.168.10.xx) console it getting Stuck no any unreachable or other result .
 
comment this,
as it redirects all trafic including internet over the tunnel (THIS ALLREADY CHECKED )

weird, are you sure it's the remote PVE over its OpenVPN ?

Ans: Actually, i didn't understand. my Proxmox Server on dedicated Hardware and Open VPN Setup on CT (Container). on default bridge vmbr0

Proxmox Network Interface : -

Code: 
root@pve:~# cat /etc/network/interfaces
auto lo
iface lo inet loopback

iface eno1 inet manual

auto vmbr0
iface vmbr0 inet static
        address 192.168.10.50/24
        gateway 192.168.10.1
        bridge-ports eno1
        bridge-stp off
        bridge-fd 0


source /etc/network/interfaces.d/*


Ip routes :

Code: 
default via 192.168.10.1 dev eth0 proto static
10.8.0.0/24 via 10.8.0.5 dev tun1
10.8.0.0/24 dev tun0 proto kernel scope link src 10.8.0.1
10.8.0.1 via 10.8.0.5 dev tun1
10.8.0.5 dev tun1 proto kernel scope link src 10.8.0.6
192.168.10.0/24 dev eth0 proto kernel scope link src 192.168.10.75
192.168.150.0/24 via 10.8.0.6 dev tun0

192.168.150.0/24 via 10.8.0.6 dev tun0 - This is the OpenVpn ...
 
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