On Fri, Jul 18, 2008 at 1:46 AM, Wojciech Puchar <[EMAIL PROTECTED]> wrote: >> >> Just wondering if a box has 2 Ethernet cards with each card going to a >> different gateway/network, is it possible to stick a jail on the machine >> listening on one network interface and routing data out one >> card/network/gatway while the rest of the system uses the other port and >> gateway/network. > > yes - no problem
For most values of "yes". For others, the answer is "It depends." Yes, you can configure daemons running on the host to bind to one interface, and configure daemons running on the jail to bind to a different interface. However, host <-> jail communications occur over loopback and "routing data" between the two, if that's the question being asked, has its limitations. I brought up this problem just recently. http://docs.freebsd.org/cgi/getmsg.cgi?fetch=407605+0+archive/2008/freebsd-questions/20080713.freebsd-questions To sum up, if jail host running at 10.0.0.1 connects to a jail running at 10.0.0.2, the traffic will occur over lo0, and BOTH endpoints of that connection will use the jail (10.0.0.2) address. To my mind, that can be problematic. You can modify the routing table so that a host -> jail connection exits an actual interface (and uses that interface's IP address). However, this offers limited usefulness as you can't do the same on the jail side (there's only one routing table to speak of), and return traffic won't be seen on that interface. The above applies irrespective of whether the jail host and the jail are on the same or different network, or on the same or different NICs. _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"