Hi all I am connected to my ethernet cable ISP. I have been provided a static IP 172.16.0.141 Netmask 255.255.255.0. I have setup a local firewall using IPcop default setup with DMZ and port forwading for HTTP & Mail to DMZ Webserver (on IPcop box using three network cards, 192.168.200.1 Green & 192.168.100.1 DMZ). My ISP Gateway is 172.16.0.1 and traceroute shows next hop to be 202.164.40.9. DNS Servers given by my ISP are 202.164.32.81 & 202.164.32.82. I asked for a live IP but they are asking too much for it....equivalent to a leased line especially when the max throughput is 6K at the best. I contacted no-ip.com to findout if I can use their services and they replied as under: > Unfortunately this is not possible if your ISP themselves is using a > NAT. I would contact your ISP to find out how to get a real IP address > from them, so you can run a server. On the other hand, my ipcop firewall is logging blocked domain DNS queries (reverse lookups) from some sites that I am using for browsing & download. Since the firewall is stateful that means that these are new connection requests that the firewall is logging & blocking. How are these reaching my firewall?....they should be stop at the ISP server. My questions are: 1. How do I find out what my ISP is doing? Asking is no use. 2. Is there a way to reach my firewall box from the internet?....just like those reverse DNS lookups. 3. If my ISP were not using NAT...how could my server be reached?...as the no-ip.com support implied. Request please help. With best regards to all. Sanjay.
