I'm not sure I understand your question.
I have a DSL-connection directly to my SME(it's firewall and server).
I can connect remotely via PPTP, using cable from a winxp-pc, using GPRS on my ipaq via my cellphone, and within the local-network for encryption of 802.11b-packets.
I've never had any problems
Mathias Vestergaard
MT Productions