product description : 4-port broadband router with usb print server interface : wan -10/100base-tx ethernet port lan - 4 10/100base-tx ethernet ports printer - usb 1.1 type a port printer protocols : tcp/ip, line printer, daemon protocol vpn support : pptp pass-through, ipsec pass-through, l2tp pass-through power input : dc 5v 2.0a dimensions : 148 x 114 x 32 mm weight : 230.7 grams * designed to let a group of users share a broadband internet connection through a dsl or cable modem * it integrates usb printer sharing with 4 lan ports * supports dsl and cable modem connection * supports always-on (bridged) and pppoe for ppp connection on demand * support auto mdi/mdix * support 802.3x flow control (fullduplex) and back pressure (halfduplex) * internet gateway functions: network address translation (nat), dhcp serve * user access control : mac address filtering, scheduling * firewall features : nat with vpn pass-through, spi * high performance * quality of service provides prioritized transmission/reception for voip traffic & streaming media & multicast stream igmp (internet group management protocol)