Soapui proxy configuration:
http://www.soapui.org/Working-with-soap ... ttings-tabYou can try this
* retrieve the soapui settings file (in you home directory) and get proxy configuration elements
* create an empty soapui settings file and add proxy configuration to it
* update your maven plugin configuration: add path to the settings file you have just created
Alternatively, you can add this configuration to your plugin, this will set java system properties
<soapuiProperties>
<property>
<name>http.proxyHost</name>
<value>someProxyURL</value>
</property>
<property>...
</property>
</soapuiProperties>