1720 in VPN3K

I am new to the concentrator and the vpn in general. I understand that the hub is based on UDP by default. Why when I set up a 1720 with IPSEC IOS router, I can create a vpn between my two networks, but when I try to use the LAN to LAN under the part "Protocols of Tunneling, IPSEC LAN to LAN" hub the tunnel will not come? The only way I get the next tunnel is with the user configuration basis to pre-shared key, checkbox on IPSEC and remote access tunnel. If I choose to LAN to LAN in user base, disconnect the session, the tunnel never coming back upward. If I it back to remote access, initiate the traffic, the tunnel arrives. I guess I have to configure NAT on the 1720, but thought that this kind of work has been eliminated with the hub. Can someone explain why this is?

That is right. You can set the remote network in the section you mentioned.

You will need to only create network, if you have several subnets to end either Local or remote.

Tags: Cisco Security

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