monitoring network tool

[Noah]

Hi there,


I am having a lot of difficulties between my home network and my colocation
site network.  I am trying to monitor where there are difficulties and Packet
loss.  I dont have admin access to any of the routers off my network.  can
somebody recommend a nice tool that graphs and charts packet loss at different
points between two networks.  I can possibly set it up bidirectionally if the
tool is ported for freeBSD.

cheers,

Noah