On a 2nd internet connection that receives its IP & GW automatically like for a PPoE connection a DNAT will work fine because Astaro knows the correct gateway to go out rather than the default gateway on the primary link. When setting a static IP on the 2nd link though all traffic goes straight out the default gateway no matter what connection it came in on.
For example ISP 2 in the diagram below has some DNAT to hosts on the LAN. How do I tell the Astaro that any incoming connections hitting 203.1.1.1 is to use 203.1.1.2 as its gateway rather than the default gateway other than using a bunch of static/policy routes?
.......ISP 1.........ISP 2
(Default GW)..(GW=203.1.1.2)
___|__________|_
|..........203.1.1.1 |
|......Astaro.........|
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