Deixo aqui minha comtribuição com o PCC
	
	
		Estou usando a Versao 4.2 do MK com PCC e esta Rodando 100% com PCC de 2 Links ADSL 4MiB
                Código :
                
# nov/01/2009 00:45:02 by RouterOS 4.2
#
 
/interface ethernet
set 0 arp=enabled auto-negotiation=yes cable-settings=default comment=\
    "Interface da Rede Interna" disable-running-check=yes disabled=no \
    full-duplex=yes l2mtu=1600 mac-address=00:1F:D0:E8:83:D2 mtu=1500 name=\
    EthClientes speed=1Gbps
set 1 arp=enabled auto-negotiation=yes cable-settings=default comment=\
    "Interface do Modem B " disable-running-check=yes disabled=\
    no full-duplex=yes mac-address=00:50:DA:7A:4F:13 mtu=1500 name=WanB \
    speed=100Mbps
set 2 arp=enabled auto-negotiation=yes cable-settings=default comment=\
    "Interface do Modem A " disable-running-check=yes disabled=\
    no full-duplex=yes mac-address=00:50:DA:B6:0D:8E mtu=1500 name=WanA \
    speed=100Mbps
/interface pppoe-client
add ac-name="" add-default-route=no allow=pap,chap,mschap1,mschap2 comment=\
    "PPPOE do Link A" dial-on-demand=no disabled=no interface=\
    WanA max-mru=1492 max-mtu=1492 mrru=disabled name=EthLinkA password=\
    seu_password profile=default service-name="" use-peer-dns=no user=\
    seu_id_@_provedor
add ac-name="" add-default-route=no allow=pap,chap,mschap1,mschap2 comment=\
    "PPPOE do Link B" dial-on-demand=no disabled=no interface=\
    WanB max-mru=1492 max-mtu=1492 mrru=disabled name=EthLinkB password=\
    seu_password profile=default service-name="" use-peer-dns=no user=\
    seu_id_@_provedor
 
/ip firewall address-list
add address=200.155.0.0/16 comment="" disabled=no list=BRADESCO
add address=200.201.0.0/16 comment="" disabled=no list=CEF
add address=170.66.0.0/24 comment="" disabled=no list=BB
add address=200.220.0.0/16 comment="" disabled=no list=SANTANDER
add address=200.196.0.0/16 comment="" disabled=no list=ITAU
add address=189.56.0.0/16 comment="" disabled=no list=NOSSACAIXA
add address=161.113.0.0/24 comment="" disabled=no list=HSBC
add address=201.7.176.0/24 comment="" disabled=no list=GLOBO1
add address=201.7.180.0/24 comment="" disabled=no list=GLOBO2
add address=201.7.176.0/24 comment="" disabled=no list=GLOBO3
add address=200.154.56.0/24 comment="" disabled=no list=TERRA
add address=208.84.247.0/24 comment="" disabled=no list=TERRA
add address=10.10.0.0/20 comment="" disabled=yes list=sem_balance
add address=62.140.0.0/16 comment="" disabled=no list=rapidshare
 
/ip firewall mangle
add action=accept chain=prerouting comment="SEM BALANCE" disabled=no \
    dst-address-list=sem_balance in-interface=EthClientes
add action=accept chain=prerouting comment="LIBERAR SITES HTTPS" disabled=no \
    dst-address-list=BB in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    BRADESCO in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    CEF in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    HSBC in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    ITAU in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    NOSSACAIXA in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    SANTANDER in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    GLOBO1 in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    GLOBO2 in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    GLOBO3 in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    TERRA in-interface=EthClientes
add action=accept chain=prerouting comment="" disabled=no dst-address-list=\
    rapidshare in-interface=EthClientes
add action=mark-connection chain=input comment=\
    "********************Marca Novas Conexoes" connection-state=new disabled=\
    no in-interface=EthLinkA new-connection-mark=conn_na passthrough=yes
add action=mark-connection chain=input comment="" connection-state=new \
    disabled=no in-interface=EthLinkB new-connection-mark=conn_nb \
    passthrough=yes
add action=mark-routing chain=output comment="Marcando Rotas" \
    connection-mark=conn_na disabled=no new-routing-mark=to_ra passthrough=no
add action=mark-routing chain=output comment="" connection-mark=conn_nb \
    disabled=no new-routing-mark=to_rb passthrough=no
add action=mark-connection chain=prerouting comment=Balanceando disabled=no \
    dst-address-type=!local in-interface=EthClientes new-connection-mark=\
    conn_ma0 passthrough=yes per-connection-classifier=both-addresses:2/0
add action=mark-connection chain=prerouting comment="" disabled=no \
    dst-address-type=!local in-interface=EthClientes new-connection-mark=\
    conn_mb1 passthrough=yes per-connection-classifier=both-addresses:2/1
add action=mark-routing chain=prerouting comment=\
    "********************Marca Rotas de Saida" connection-mark=conn_ma0 \
    disabled=no in-interface=EthClientes new-routing-mark=to_nra passthrough=\
    no
add action=mark-routing chain=prerouting comment="" connection-mark=conn_mb1 \
    disabled=no in-interface=EthClientes new-routing-mark=to_nrb passthrough=\
    no
add action=mark-connection chain=forward comment="Marca p2p" disabled=no \
    new-connection-mark=p2p_conn p2p=all-p2p passthrough=yes
add action=mark-packet chain=forward comment="" connection-mark=p2p_conn \
    disabled=no new-packet-mark=p2p passthrough=yes
add action=mark-packet chain=forward comment="" connection-mark=!p2p_conn \
    disabled=no new-packet-mark=other passthrough=yes
add action=change-mss chain=forward comment="Ajuste de Quadros para o MSN" \
    disabled=no new-mss=1380 protocol=tcp tcp-flags=syn
add action=change-ttl chain=forward comment=\
    "BLOQUEIO DE TRACERT E TRACEROUTE" disabled=no new-ttl=set:30 protocol=\
    icmp
 
/ip firewall nat
add action=passthrough chain=unused-hs-chain comment=\
    "place hotspot rules here" disabled=yes
add action=masquerade chain=srcnat comment="Macaramento dos Links" disabled=\
    no out-interface=EthLinkB src-address=10.10.0.0/20
add action=masquerade chain=srcnat comment="" disabled=no out-interface=\
    EthLinkA src-address=10.10.0.0/20
add action=masquerade chain=srcnat comment="masquerade hotspot network" \
    disabled=no src-address=10.10.0.0/20
 
/ip route
add check-gateway=ping comment="" disabled=no distance=1 dst-address=\
    0.0.0.0/0 gateway=EthLinkA routing-mark=to_nra scope=30 target-scope=10
add check-gateway=ping comment="" disabled=no distance=1 dst-address=\
    0.0.0.0/0 gateway=EthLinkB routing-mark=to_nrb scope=30 target-scope=10
add check-gateway=ping comment="Rota padrao Modem B" disabled=no \
    distance=2 dst-address=0.0.0.0/0 gateway=EthLinkB scope=30 target-scope=\
    10
add check-gateway=ping comment="Rota de sombra Modem A" disabled=\
    no distance=3 dst-address=0.0.0.0/0 gateway=EthLinkA scope=30 \
    target-scope=10
  
by Load Balance PCC Geeek :elefant: