OpenVPN Support Forum

Hello,

We have been using OpenVPN for several months now and have had no problems until recently. Over the past week and a half every day, in the mid afternoon, traffic over the VPN comes to a crawl. We have been over the config which seems fine, and the server doesn't seem to be overloaded. We're just looking for some outside ideas on why the problem would be occurring all of the sudden.

Server Version info:
OpenVPN 2.1_rc2 i386-redhat-linux-gnu [SSL] [LZO2] [EPOLL] built on Mar 3 2007
Developed by James Yonan
Copyright (C) 2002-2005 OpenVPN Solutions LLC <info@openvpn.net>

Config:

local x.x.x.x
port 1194
# TCP or UDP server?
proto udp
dev tap
mssfix 1300
txqueuelen 900
reneg-sec 0
;dev-node MyTap
ca /usr/share/openvpn/easy-rsa/2.0/keys/ca.crt
cert /etc/openvpn/keys/server.crt
key /etc/openvpn/keys/server.key
dh /etc/openvpn/keys/dh1024.pem
server 10.250.0.0 255.255.0.0
ifconfig-pool-persist ipp.txt
;server-bridge 10.253.0.1 255.255.255.0 10.253.0.50 10.253.0.100
;server-bridge
;push "route 192.168.20.0 255.255.255.0"
client-config-dir /etc/openvpn/ccd
;route 192.168.40.128 255.255.255.248
client-config-dir ccd
;route 10.253.0.0 255.255.0.0
;learn-address ./scrip
;push "redirect-gateway def1 bypass-dhcp"
;push "dhcp-option DNS 208.67.222.222"
;push "dhcp-option DNS 208.67.220.220"
push "dhcp-option DNS 10.250.0.1"
push "dhcp-option DNS 192.168.245.22"
client-to-client
;duplicate-cn
keepalive 10 120
;tls-auth ta.key 0 # This file is secret
;cipher BF-CBC # Blowfish (default)
;cipher AES-128-CBC # AES
;cipher DES-EDE3-CBC # Triple-DES
;comp-lzo
;max-clients 100
;user nobody
;group nobody
persist-key
persist-tun
status openvpn-status.log
;log openvpn.log
;log-append openvpn.log
verb 6
;mute 20

mauger wrote:Hello,

We have been using OpenVPN for several months now and have had no problems until recently. Over the past week and a half every day, in the mid afternoon, traffic over the VPN comes to a crawl. We have been over the config which seems fine, and the server doesn't seem to be overloaded.

Have you considered the possibility that your network carriage service may be suffering at a level outside of the VPN? EG, its not the OpenPVN config files, but the network provider which is causing the traffic to slow down....

Without a proper context its hard to help you. You didn't tell us if its a LAN at home, and an Intranet or WAN.

The fact that you say its every day at mid-afternoon really is a bug clue that the problem is not about config files at all.