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  1. emiliodk

    Problem config Cisco router behind ADSL modem

    I'm trying to get a router to work behind an Alcatel Speedtouch adsl modem. The router is a cisco 1720 with two ethernet interfaces. The modem is "tweaked" and does NAT and sets up the vpn connection. I can ping from the PC to the inside address of the modem (192.168.1.1) but not to...
  2. emiliodk

    NAT on Cisco 1720 router behind Alcatel ADSL modem

    Sorry, forgot to mention this: the upgrade of the Alcatel Speedtouch home made it a router, so it's a router behind a router. Reason I still want to use the Cisco is that we can't return it AND I bought firewall software for it that I want to use.
  3. emiliodk

    NAT on Cisco 1720 router behind Alcatel ADSL modem

    I'm having problems using a 1720 with two ethernet interfaces behind an ADSL modem. The provider does not seem to support PPPoE so I can't set up the necessary VPN connection from my router. No problem, I "upgraded" the modem so it dials the VPN connection itself. So now I have a modem...

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