L2TP extends the Point to Point nature of PPP by providing an encapsulation method for sending tunneled PPP frames, thereby allowing the PPP endpoints to be tunneled over a packet switched network. This is most commonly deployed in remote access type scenarios using the internet to offer intranet type services; a concept of a Virtual Private Network (VPN).
The two primary physical elements of L2TP are the L2TP Access Concentrator (LAC) and the L2TP Network Server (LNS).
LAC - The LAC is a peer to the LNS, acting as one side of the tunnel endpoint. The LAC terminates the remote PPP connection and sits between the remote and the LNS. Packets are forwarded to and from the remote connection over the PPP connection. Packets to and from the LNS are forward over the L2TP tunnel.
LNS - The LNS is a peer to the LAC, acting as one side of the tunnel endpoint. The LNS is the termination point for the LAC PPP tunneled sessions. This is used to aggregate the multiple LAC tunneled PPP sessions and ingress into the Private Network
Make sure you place the web servers, workstations and internet traffic (i.e. the T1) on separate vlans just for better traffic optimization and configure intervlan routing (with a simple access list) for management.
If youre looking @ actually deploying 254 workstations, you might consider making separate vlans as well based on departments or other criteria to optimize the broadcast domain.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...