HELLO, THEM COMMENT MY PROBLEM, I HAVE INSTALLED VERSION 2.9.2 ENABLED THE WEB-PROXY IN 192.168.0.5 PORT 3128 WITH THE TRANSPARENT MODE ENABLED. NAVIGATION WEB IN the EQUIPMENT CONNECTED TO the WEB-PROXY WORKS WELL, BUT FROM the LINE OF COMMAND DO NOT WORK THE PING TO ME. I MAKE A PING TO http://WWW.GOOGLE.ES AND RESOLVE THE DIRECTION BUT IS NO ANSWER TO THE PING. FROM THE MIKROTIK I MAKE A PING TO THE GOOGLE IP AND IF THERE IS ANSWER. SOME IDEA? thanks.
do you have masq on src-nat ?
M.
I used this firewall nat:
X chain=srcnat out-interface=internet src-address=192.168.0.0/24
protocol=tcp src-port=0-65535 action=masquerade
the rule is disabled
this rule is disabled?
how can I enabled this?
The rule this correct one for which I want to do
to enable a rule, right click, then ENABLE 
IS enabled but no work, any idea?
first of all, i’m not an expert jajaja but I’ve got these firewall rules, and it works
0 chain=srcnat out-interface=WAN action=masquerade
1 chain=srcnat dst-address=172.16.0.1 protocol=tcp dst-port=80 action=accept
2 chain=dstnat in-interface=LANbridge protocol=tcp dst-port=80
action=redirect to-ports=3128
This configuration works correctly, thanks kolorasta 