hi all,

i'm struggling with a network setup i want to achieve, and i'm not sure
what shorewall features i need to use (or if it can be achieved at all).

i want to setup a dual gateway of some sort: i have a linux host with 3
network interfaces:
eth3 is connected to private network, and i need NAT for this network
eth8 is connected to the ISP
eth6 is connected to a local public network. this host supposed to be
the gateway/router for this subnet

what i now want to achieve is that i can use the gateway IP of eth6
(*not* the ISP ip from eth8) for the NAT and also that i can setup port
forwarding on the the IP of eth6.

trying to wrap my head around the issue, i think i want to tell
shorewall to not consider eth8 as part of the FW, and use it for routing
to eth6 and (hopefully) still allow filtering.

many thanks for any tips (and apologies if this makes no sense ;)

stijn


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