The SOAP personality is configured using a configuration file. See Using a configuration file for more details.
Here is a summary of available parameters for each instance of SOAP.
###############################################################################
# SOAP parameters
#
[soap]
###############################################################
# SOAP Global Settings
# Preference level for SOAP
#polyorb.binding_data.soap.preference=0
# SOAP's default address
#polyorb.protocols.soap.default_addr=127.0.0.1
# SOAP's default port
#polyorb.protocols.soap.default_port=8080