[THIN] Citrix ports

Hi All,

 

Can anyone shed some light on what citrix is doing as our DR site's firewall is picking up traffic from my citrix servers on ports TCP 137 & UDP 445 pretty much all day long. The targets seem to be the DR DC's???

 

The farm is on Win2003 with Win2003 domain and using CPS 4.5 sp3 with CSG and proxy.

 

Any pointers would be great!

 

Thanks

Al 

 

Alan