I am troubleshooting a issue that has a me a tad bit confused, and if anyone has a nudge in the proper direction for me that would be great.
I have a vpn connection that has been working fine for a number of months (over a year really). One endpoint is here in the states, the other in Shanghai. This last week however, the transfer rates on the line have gone to pot.
With this being a overseas connection, to China no less, it is complicating tracking down the source of the problem for me. I don't really believe that anything is wrong with the VPN software (OpenVPN 2.0.9 i386-unknown-openbsd4.0 [SSL] [LZO] built on Jan 5 2007), but I have noticed something rather interesting.
Packet loss over the unencrypted link is sitting at roughly 2%, over the encrypted link it is 22%. Transfer rates over the unencrypted line is faster as well. I will put the server config at the end of this message as well. Load on the endpoints is fairly light as well, one host is a 733Mhz machine, the other is a 450.
Any ideas on what might account for the difference in encrypted vs unencrypted traffic?
Thanks for any advice.
server IP 255.255.255.0
# Client should attempt reconnection on link failure.
push "ping 10"
push "ping-restart 60"
push "route IP 255.255.0.0"
push "route IP 255.255.255.0 "
route IP 255.0.0.0
route IP 255.255.255.255
# Fix MTU issues.
# The server doesn't need privileges
status /var/log/openvpn.status 10