ZPH with Squid 3.1.19 with UBUNTU 12.04 / Mikrotik QUEUE

ZPH is a squid patch that enables SQUID to mark cached packets , so that it can later used by the Mikrotik or squid itself to bypass cached contents from Speed Package.

Z.P.H directives config which works with SQUID 2.7 donot work with new version of SQUID i.e 3.x

Use the following directives in /etc/squid3/squid.conf

# ZPH for Squid3

qos_flows local-hit=0x30

and in Mikrotik, settings remain same to mark cache contents coming from the squid and bypass it using Queue Tree . . .

For Mikrotik 5.x

/ip firewall mangle add action=mark-packet chain=prerouting comment="MARK_CACHE_HIT_FROM_PROXY" disabled=no dscp=12 new-packet-mark=proxy passthrough=no

/queue tree add burst-limit=0 burst-threshold=0 burst-time=0s comment="Queue for SQUID CACHE HIT for ZPH" disabled=no limit-at=0 max-limit=0 name=Proxy packet-mark=proxy parent=global-out priority=1 queue=default

For Mikrotik 6.x

/ip firewall mangle add action=mark-packet chain=prerouting comment="MARK_CACHE_HIT_FROM_Proxy" disabled=no dscp=12 new-packet-mark=proxy passthrough=no

/queue tree add comment="ZPH Cache Hit Queue" name=proxy packet-mark=zph-hit parent=global priority=1 queue=default

If above queue tree don't work with ROS 6.x then try adding simple queue and move it on TOP in simple QUEUE section

/queue simple

add max-limit=100M/100M name="ZPH-Proxy Cache Hit Simple Queue" packet-marks=zph-hit priority=1/1 target="" total-priority=1