On Tue, Jul 26, 2011 at 11:38 AM, PC <paul4...@gmail.com> wrote: > I have GRE tunnels and l2tp tunnels over those comcast boxes. l2tp is less > hassle because it handles NAT, but you can do GRE instead -- just make sure > you assign yourself a public static IP. > > First, go into the gateway and make sure all firewalls are disabled (it has > a web GUI). > > Second, if it's the comcast SMC 4 port "gateway" thing I think it is, the > device is somewhat retarded. You plug into the switch and pull DHCP, and > you get a natted address and it routes. > > You can plug into the same switch and set a static IP on your device > (internet public IP), and it will work without NAT, assuming your account > has a static IP. > > Set said static IP on your microtik box and it should pass end-to-end > without drops. > > Was working on the same reply as Paul. You assign your static to your Mircotik box and check the box in the WebGUI (default is http://10.1.10.1) to "Disable Firewall for True Static IP Subnet Only" on the firewall tab.
-Jon
