squid配置?铨

#  TAG: tcp_outgoing_address
#  TAG: udp_incoming_address
#  TAG: udp_outgoing_address
#        Usage: tcp_incoming_address 10.20.30.40
#               udp_outgoing_address fully.qualified.domain.name
#
#        tcp_outgoing_address        is used for connections made to remote
#                                servers and other caches.
#        udp_incoming_address        is used for the ICP socket receiving packets
#                                from other caches.
#        udp_outgoing_address        is used for ICP packets sent out to other
#                                caches.
#
#        The default behavior is to not bind to any specific address.
#
#        A *_incoming_address value of 0.0.0.0 indicates that Squid should
#        listen on all available interfaces.
#
#        If udp_outgoing_address is set to 255.255.255.255 (the default)
#        then it will use the same socket as udp_incoming_address. Only
#        change this if you want to have ICP queries sent using another
#        address than where this Squid listens for ICP queries from other
#        caches.
#
#        NOTE, udp_incoming_address and udp_outgoing_address can not
#        have the same value since they both use port 3130.
#
#        NOTE, tcp_incoming_address has been removed.  You can now
#        specify IP addresses on the 'http_port' line.
#
#Default:
# tcp_outgoing_address 255.255.255.255
# udp_incoming_address 0.0.0.0
# udp_outgoing_address 255.255.255.255
这三项怎么配置啊