On Wed, Jul 01, 2009 at 05:50:18AM +0200, Jan Engelhardt wrote: > > On secondary thought, one could also argue that because conntrack > ignores the interface, two unrelated connections happening to be routed > through the same machine(*) are tracked as one, too. Good point. We really should make these risks much more explicit. However, I still think the risk with bridging is higher, especially in the presence of virtualisation. Consider the scenario where you have to VMs on the one host, each with a dedicated bridge with the intention that neither should know anything about the other's traffic. With conntrack running as part of bridging, the traffic can now cross over which is a serious security hole. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
