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Internal subnets restricted to specific external interfaces

I have a site where there are 2 internal subnets. Each subnet needs to use a specific external interface. From the firewall I can traceroute to the Internet over either interface, but from the network, I can access the Internet only over the original External Interface. When connected to the 2nd subnet and using the second interface for the gateway, I am going nowhere.


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  • Uplink Balancing and Multipath Rules are what you need.  After enabling/configurating Uplink Balancing, make certain that both external interfaces have a default gateway set and check your MASQ rule that the Interface is "Uplink Interfaces"
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  • Uplink Balancing and Multipath Rules are what you need.  After enabling/configurating Uplink Balancing, make certain that both external interfaces have a default gateway set and check your MASQ rule that the Interface is "Uplink Interfaces"
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