Default outgoing interface for pfsense

[hkusulja]

Hi!
I have setup..  WAN interface and OPT1 as outgoing gateways, , this works as failover , and sometimes as load balancing…

I have proxy (squid) on pfsense, how can i set that this proxy (pfsense) should always go to OPT1 interface, not to WAN.

(I think this is sam question how can i set that pfsense packages are downloaded from OPT1 and not WAN)

thank you