On Sun, Nov 06, 2005 at 05:38:58AM -0600, /dev/rob0 wrote: > A site where I work has dual ISP's for redundancy with a simple round- > robin routing scheme, set up according to http://www.ssi.bg/~ja/ (in > case you're familiar with that, if not, don't bother, it's not > applicable.) > > This router will be the UML host machine. It has dual external IP > addresses, plus small subnets routed by each ISP to it. > > I'm planning to run 4 UML's as a virtual DMZ. I want each UML instance > listening on two IP addresses, one from each ISP's subnet. > > Has anyone done anything like this? I saw the virtual DMZ link in the > wiki, but that was using RFC 1918 IP addresses and NAT from a single > external IP. > > I suppose I could attach each one as a separate Ethernet device on the > UML, but that would require routing rules on each UML. Initially I'd > prefer to keep it simple. Most of these UML's will run services which > can simply respond on the same IP. (SMTP will use the primary IP for > outgoing mail, but that's not a problem.)
I'm not sure what the question you're asking is. You can do basically anything (networking wise) with a UML that you can do with a physical host -- so both IP addresses can be put on the same virtual interface with interface aliases. As far as getting it to the outside world, you've got uml_switch, iptables, and Linux ethernet bridging to help you out, and there isn't yet a networking topology I haven't been able to make with some combination of those three. > mail to this address is discarded unless "/dev/rob0" > or "not-spam" is in Subject: header I hope you've turned this off for posts to mailing lists -- it's unlikely that all respondents to your question will even notice this. - Matt ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
