Hello,
I may have opportunity to obtain a Intel EXPI9404PTLBLK PRO/1000 PT Quad
Port ethernet adapter at a significantly reduced price.
What I would like to do with it, I want to make sure it is possible and
sane before I buy it.
-=-
Device sits in CentOS box that connects directly to Internet via onboard
network adapter.
It pretty much only acts as a NAT router + dhcp server + unbound
recursive DNS for the private networks.
The four ethernet interfaces on the Intel adapter then :
Private Network A: 192.168.10.0/24
Private Network B: 192.168.20.0/24
Private Network C: 192.168.30.0/24
Private Network D: 192.168.40.0/24
A will have a NAS. I can reach it from Internet (via port forwarding)
and B and C (routing table) but from it, I can not connect to Internet
or B, C, D. That network which likely will only have a few devices can
not initiate connection to Internet or the other networks.
B is my trusted home network. It can connect to Internet (NAT) and to A
(port forwarding) but can not reach C or D
C is untrusted home network. Things like my TV and Bluray player that
need Internet access but that I don't want to have the ability to reach
anything on B, but I do want them to be able to talk to NAS on A via
port forwarding. I'm always paranoid about those devices on my network,
I don't trust what they are doing. Call it tin foil but I don't trust
them. Yet they don't work right without access to Internet (updates /
netflix)
D when used is network for guests (will have cheap wifi attached), it
only talks to Internet via straight NAT and can not talk to private
networks A, B, C
-=-
Is this sane ?
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