Brian Atkins wrote:
I'm trying to decode the GSS-API conversation between a client and 
server.  I can see the traffic on the designated port, but when I select 
"Decode As", the GSS-API protocol doesn't appear.
It's not a "protocol" *per se*.  It's not something that usually (if 
ever) occurs by itself, rather than encapsulated in some protocol such 
as ONC RPC, DCE RPC, HTTP, DNS, LDAP, SMB, etc..  The encapsulations 
differ enough that there's no "generic" GSS-API dissector used by all of 
them - the dissectors for those protocols independently incorporate 
knowledge of how to call GSS-API dissector functions.
What protocol is using GSS-API in your case?