![](https://csdnimg.cn/release/download_crawler_static/12560537/bg1.jpg)
协议号
ip 0 IP # Internet protocol 互联网协议
icmp 1 ICMP # Internet control message protocol
ggp 3 GGP # Gateway-gateway protocol
tcp 6 TCP # Transmission control protocol
egp 8 EGP # Exterior gateway protocol
pup 12 PUP # PARC universal packet protocol
udp 17 UDP # User datagram protocol
hmp 20 HMP # Host monitoring protocol
xns-idp 22 XNS-IDP # Xerox NS IDP
rdp 27 RDP # "reliable datagram" protocol
ipv6 41 IPv6 # Internet protocol IPv6
ipv6-route 43 IPv6-Route # Routing header for IPv6
ipv6-frag 44 IPv6-Frag # Fragment header for IPv6
esp 50 ESP # Encapsulating security payload
ah 51 AH # Authentication header
ipv6-icmp 58 IPv6-ICMP # ICMP for IPv6
ipv6-nonxt 59 IPv6-NoNxt # No next header for IPv6
ipv6-opts 60 IPv6-Opts # Destination options for IPv6
rvd 66 RVD # MIT remote virtual disk
端口编号
echo 7/tcp
echo 7/udp
discard 9/tcp sink null
discard 9/udp sink null
systat 11/tcp users #Active users
systat 11/udp users #Active users
daytime 13/tcp
daytime 13/udp
qotd 17/tcp quote #Quote of the day
qotd 17/udp quote #Quote of the day
chargen 19/tcp ttytst source #Character generator
chargen 19/udp ttytst source #Character generator
ftp-data 20/tcp #FTP , data
ftp 21/tcp #FTP . control
ssh 22/tcp #SSH Remote Login Protocol
telnet 23/tcp
smtp 25/tcp mail #Simple Mail Transfer
Protocol