Windows 2000/2003/2008/XP/7; Cisco IOS 12.x; VMware; LAN (802.3); WLAN (802.11); WAN (PPP‚ Frame Ralay); ; VLAN/VTP; OSI; TCP/IP; IPv4v6; DNS; DHCP; VLSM; NAT/PAT; ACL; CDP; Routing (Rip‚ OSPF‚ EIGRP); Switching(STP/RSTP); Cisco Wireless LAN Controller; Cisco ISR 2811; Cisco Catalyst 3750.