D-Link DSA-3110, end user price 274 USDhttp://www.dlink.ru/products/prodview.php?type=18&id=603
PPTP access concentrator
7 10/100Base-TX ports, including 4 user-configurable ports
Connection protocol: PPTP
Authentication protocols: PAP, CHAP, MSCHAP, MSCHAPv2
Encryption: MPPE
NAT support
Base OS: Linux
User authentication: local user database or RADIUS server
Up to 50 simultaneous connections, up to 250 user accounts in local database
Management: Console,Telnet, SSH, Web-interface
Statistics export: NetFlow v.5
Power Adapter included