I have a VPN tunnel using 2 Linksys RVS4000 routers. I'm using the same ISP at both ends ( a cable provider with 512 Kbps upload speed and 7.5 Mbps download) . I have a Windows PCs at both ends. The transfer speeds are impossibly slow. When I transfer a 1 M file between 2 machines I get about 10 kbps transfer rates.
I need secure access to a 54M database and these speed make access impossible.
These are the settings of the tunnel
Keying Mode: IKE with Preshared Key
Key Life Time: 86400 Sec.
Perfect Forward Secrecy: enable
Key Life Time: 28800