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connecting (bridging) two networks

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linux-howto

http://unix.stackexchange.com – I would like to connect (bridge) two networks (ppp0 and eth2). Normally you would do this with brctl but one of the network-interface is a ppp-device so it won't work (ppp can't transport ppp-frames). What I could do, is enable ip-forwarding but that is not enough as I want traffic from that ppp-device only go to eth2 and vice versa. NAT is fine. Another problem is that as far as I know you cannot push routing information to ppp-clients? Any help is appreciated! (solutions that work with windows/mac/android clients would be nice but not absolutely required) (HowTos)