We currently run IOS 11.1.5 on Cisco 2514s. It appears that 11.1.5 has no support for PPPoE. Is there a version of the IOS that supports both PPPoE and NAT on a 2514? The 2514 needs to be a PPPoE client, talking to a PPPoE server via one of its
Ethernet interfaces which is connected to an external DSL modem.