Strong understanding in the following technologies and protocols: TCP/IP, IPv4, IPv6, supernetting and subnetting, DNS, HTTP, SMTP, RADIUS, LDAP, Active Directory, PKI, IKE, Certificates, L2TP, SSL Decryption, SSL VPN, IPSEC, 802.1Q, VLANs, LACP, MD5, SSH, SSL, SHA1, SHA512, 3DES, AES.