Is it normal for a Netware 4.91 client to authenticate to the DA.
We see that a lot of the Windows XP clients make the first few request at
the Directory Agent rather than the server at the site.

Ethereal shows the following lines:

Create Connection service
Get Big Max Packet Size
Enumerate NCP Service Network
Ping for NDS
NDS Begin Login
NDS Get Server Address
NDS Resolve Name -> WANSERVER
NDS Read Attribute Name
Get Server address
NDS Begin authentication
NDS finish authentication

Isn't it possible to let this be done on the local site rather than the
server accross the WAN link?