Huh. I'm an IT guy and although I knew about (what some call) classic routers (we use a double routing method here) I was not aware that there was a such thing as fire walling without some kind of NAT protection. If this is fairly common as you say, I am quite shocked! For servers I would set up a one to one NAT so that the actual IP of the servers would not be visible to the public side in order to prevent IP spoofing. Seems a risky thing to do these days.
Still, I think the more likely scenario for this thread is that he doesn't have a firewall solution that is not a personal firewall, which I always recommend for any home user or business. Bob On May 17, 2010, at 4:28 PM, Alex Tweedly wrote: > On 17/05/2010 23:48, Bob Sneidar wrote: >> That's because you connect to the internet without a >> gateway/router/firewall, in which case there is no public IP. I would >> rectify that situation pronto. No one should connect directly to the >> internet these days. >> > > No, it doesn't necessarily imply that there is no router/firewall. It does > imply there is no NAT function in the router/firewall, but it's perfectly > possible, and in fact still fairly common, to have public IP = local IP. Most > common in medium to large companies which got in early in the IP address > space race, and have more than enough addresses to have no need for address > sharing/translation; however, it's also possible for any home user who buys > dedicated IP address(es) service from their ISP, say if they want to run > their own servers. > > And of course you can have a transparent firewall (e.g. Cisco PIX or ASA) > either in your own network or in the service provider's regardless of whether > or not you have NAT in the router. > > -- Alex. > _______________________________________________ > use-revolution mailing list > use-revolution@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your subscription > preferences: > http://lists.runrev.com/mailman/listinfo/use-revolution _______________________________________________ use-revolution mailing list use-revolution@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-revolution
