I have a VPN performance problem, e.g. from the site in question if I download a file in Internet Explorer, from head office, directly over the internet I see approx 950k, when downloading the same file through the VPN I see around 300k.
And this performance is reflected when using the VPN day to day.
The measurements have been taken from the router so hopefully exclude any overhed isses with the VPN.
The basic is a Watchguard X series at head office and Vigor 2600plus routers at the remote sites. The VPN is using IPSec Tunnel (DES-SHA1)
I really need some direction to establish why the VPN is not using the full bandwidth available.