My dansguardian is set as follows:
# Network Settings
# the IP that DansGuardian listens on. If left blank DansGuardian will
# listen on all IPs. That would include all NICs, loopback, modem, etc.
# Normally you would have your firewall protecting this, but if you want
# you can limit it to a certain IP. To bind to multiple interfaces,
# specify each IP on an individual filterip line.
# the port that DansGuardian listens to.
filterport = 8080
# the ip of the proxy (default is the loopback - i.e. this server)
proxyip = 127.0.0.1
# the port DansGuardian connects to proxy on
proxyport = 3128
Thus clients connect on port 8080
#IP/Port squid listens for connections on