应用层
DNS(Domain Name System)
DHCP(Dynamic Host Configuration Protocol)
HTTP(HyperText Transfer Protocol)
HTTPS(Hyper Text Transfer Protocol over SecureSocket Layer)
TSL(Transport Layer Security)
SSL(Secure Sockets Layer)
CA
SMTP(Simple Mail Transfer Protocol)
FTP(File Transfer Protocol)
...
网络层
ARP(Address Resolution Protocol)
IP(Internet Protocol)
ICMP(Internet Control Message Protocol)
IGMP(Internet Group Management Protocol)