superdog
I Need A Drink
Premium,MVM
join:2001-07-13
Lebanon, PA
| Re: NAT behind NAT not a bad thing ? said by Airplane777  :How do you get those public static IPs through your edge router (since I assume your edge router is NATed)? You do some kind of port forwarding? (Isn't an edge router the one connected directly to the modem that goes to the Internet backbone?) Or do you do bridging of your edge router also? Bob, when You have a T1 or larger to the net, all of us use a router at the edge that basically bridges all of our static IP's right thru to the end user or at least to the CPE. If You are using DSL as a backhaul, You may only have 1 real world IP?, and that is used in Your modem. If that is the case?, You would then in all reality be NAT'ing 3 times?. Once at Your NOC, once at the CPE and then the 3rd time on Your customers router. This is a really bad idea. While I have seen VPN's work thru 2 NAT boxes, I have also seen some strange things happen to programs like Citrix(allows You to use a local computer to run a remote one across a VPN and special software). I would use that DLB2300 or Highgain CPE as a bridge. That way You are at least only NAT'ing twice. Once at the NOC(modem) and then again on the customers router. 
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