IP Unknown Protocol

["Booke, Raymond" <Raymond.Booke () AVNET COM>]

My logs have been showing up with a lot of IPUnknownProtocol errors
attempting to use a TCP protocol of 57.  Most of these messages have come
from internal machines, and I am wondering if anyone else has seen anything
of this nature.  I am pretty sure it isn't a trajan, but I had better be
sure.  Thanks
                

Raymond Booke MCSE CCNA NET+ A+
Global Data Security Group
Perimeter Security Analyst
Avnet INC
Raymond.Booke () avnet com
480-643-6960