On Thu, 22 Jun 2006 16:06:39 +0200 Etienne Pretorius <etiennep at kingsley.co.za> wrote: > Hello all, > > I would like to know if it is possible to have 2 bridge instances > running - one for the internal network and the other for the external > network. Yes, you can have two separate bridge instances in the system. > What I need to explain is that I need the internal bridge to go though > the Linux Kernel and pass its packets to the external network bridge. > I am also hopeful that the internal network bridge will not need an IP > address as I am hoping to allocate the internal network clients a gateway > address beyond the external network bridge and so when I have 2 similar > machines running with both internal and external network bridges > that when one machine dies completely then the other will take over. > Sooooo what I need to know is will I require proxy-arp and/or ip_forwarding? > > > [internal NW] ---> [internal bridge port 1 of 2]----[external bridge > port 4 of 4] --->[GW router]----> www.google.com No, you can't bridge a bridge. This is done to prevent creating loops and causing deep stack nesting. > I would like to make it so that no request can obviously enter the > internal network via the external bridge without having been requested > from the > internal network --- something similar to tcp state marking but for all > protocals and/or ether types. > -- Stephen Hemminger <shemminger at osdl.org> Quis custodiet ipsos custodes?
