I want to setup a gateway / firewall solution with current FreeBSD. The
network has following structure:
Several host (host[1,...,x].domain.net) are defined within the DNS and
all of them have the same A-Record with the IP 188.8.131.52
The gateway is listening on its external network interface with the IP
184.108.40.206 and has an internal interface with a private subnet
(192.168.0.0/24). The hosts (host[1,...,x].) are addressed in this subnet.
How can it be solved, that the gateway opens a tunnel to the special
host in the private subnet (let.s say 192.168.0.3) if there is a query
In my opinion this cannot be done because the client queries the DNS and
simply opens the connection to the IP 220.127.116.11 and the gateway has now
hints how to decide to which internal host the tunnel should be opened.
But this setup is possible because Microsoft ISA Server exactly does
I have have no idea how to solve this. First idea was a kernel bridge
between the interfaces.
Do you have any hints for me?
Thanks a lot!
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