Here is the command Reference for the fixup protocol http. http://www.cisco.com/en/US/products/sw/secursw/ps2120/products_command_reference_chapter09186a00801727a8.html#wp1067379
fixup protocol http
The fixup protocol http command sets the port for Hypertext Transfer Protocol (HTTP) traffic application inspection. The default port for HTTP is 80.
Use the port option to change the default port assignments from 80. Use the port-port option to apply HTTP application inspection to a range of port numbers.
Note The no fixup protocol http command still enables the filter url command.
HTTP inspection performs several functions:
•URL logging of GET messages
•URL screening through N2H2 or Websense
•Java and ActiveX filtering
The latter two features must be configured in conjuction with the filter command.
sincerely
Patrick
