I have configured 951 as router,
with simple firewall rules and some dst-nat for connect to my local devices.
All new connections via dst-nat gets "Reply Dst. Address" = "my local bridge IP",
that is usefull feature, when local device has no gateway.
But I need "Reply Dst. Address" = "Src. Address".
How can I resolve it?

Check your srcnat rules and make sure they apply only to traffic you need, which in most cases is only outgoing traffic to internet. If you don't see the problem, post your rules here.

Check your srcnat rules and make sure they apply only to traffic you need, which in most cases is only outgoing traffic to internet. If you don't see the problem, post your rules here.

Thank You!
That's true, "src-nat -> masq" have not pointed a out-interface.