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OpenVPN tunnel disconnects frequently
Author Message
Ozy Offline
Junior Member

Posts: 3
Joined: Dec 2016
Reputation: 0
Post: #1
OpenVPN tunnel disconnects frequently
Hi team,

we are having an issue with T4x phones on V82 with OpenVPN.

We are using the pfSense in-built OpenVPN server and the Client Export wizard T38(2) option. VPN tarball loads fine and phones connect and work fine.
Sites with just one T4x phone, the tunnel is stable over weeks.
Sites with multiple T4x phones often re-establish the tunnel, in general under 24 hours. Randomly this re-connect fails all together and the tunnel is down. Only way to fix this is to restart the phone.
We have run syslog with verb 6, however I can't see anything that indicates the problem.

Has anyone come across this issue?

OpenVPN config is as per Yealink whitepaper.
Quote:dev ovpns3
verb 6
dev-type tun
dev-node /dev/tun3
writepid /var/run/
#user nobody
#group nobody
script-security 3
keepalive 10 60
proto udp
cipher BF-CBC
auth SHA1
up /usr/local/sbin/ovpn-linkup
down /usr/local/sbin/ovpn-linkdown
client-config-dir /var/etc/openvpn-csc/server3
tls-verify "/usr/local/sbin/ovpn_auth_verify tls 'TQMS-OpenVPNServer' 1"
lport 4194
management /var/etc/openvpn/server3.sock unix
max-clients 500
push "route"
push "dhcp-option DOMAIN"
ca /var/etc/openvpn/
cert /var/etc/openvpn/server3.cert
key /var/etc/openvpn/server3.key
dh /etc/dh-parameters.1024
topology net30
push "route"

Thanks for any pointers that let us fix this.
(This post was last modified: 10-31-2018 01:55 AM by Ozy.)
10-31-2018 01:48 AM
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OpenVPN tunnel disconnects frequently - Ozy - 10-31-2018 01:48 AM

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