The system I am working on has around 10 Sun Blade 2500 systems and 3
Sun Fire V440.
Some of the machines are connected on an area, and some on the other

The two areas are connected via Cisco 3550 and optical switch using
optical fibres.

The problem is this:

I can ftp and acess NFS directory within the area but I could not do so
between two areas.
For example, I can ftp from a machine in an area to another area but
the ftp shell will hang on the command 'ls'. Also, I can "cd
/net/" but could not perform 'ls'.

Could anyone help?