Port Forward confused

[darklords]

Hi all,

Need Help to understand some config that i've been applied. I have router(Mikrotik) dan pfsense setup as transparent proxy.

Internet –----Mikrotik ------ Client
                        |
                        |
              Pfsense(squid3) LAN interface

I do success redirect traffic dst 80 from my client to pfsense(squid) and do port forward on Pfsense from port 80 to port 3128(squid listening on) as picture below

i just confused that interface this port forward applied is WAN interface, WAN on pfsense is disabled only LAN interface. But when i change this rules Port FOrward to LAN. i can not browsing, just show invalid url only.

Would someone explain to me why it should use WAN not LAN

thank you

[doktornotor]

1/ Your setup is completely broken. There's no such thing as LAN-only pfSense in the first place. When you have one interface only, then it MUST be WAN.
2/ And how do you imagine the box to do transparent proxy when it's not routing the traffic? Sigh?

[darklords]

hi doktornotor,

i have 2 nic on my pfsense. 1st nic sometimes get malfunction and the 2nd nic looks normal. so i disabled the 1st nic and use only 2nd nic. this is i give it name LAN
and sorry i mean, mikrotik do transparent by routing to pfsense. so pfsense use single interface (LAN) to receive dan transfer the traffic

[doktornotor]

Wonderful. Good luck.