656
Command Reference for AT-IX5-28GPX High Availability, High Power Video Surveillance PoE Switch
C613-50057-01 REV A
AlliedWare Plus™ Operating System - Version 5.4.5-0.x
IP A
DDRESSING
AND
P
ROTOCOL
C
OMMANDS
SHOW
IP
SOCKETS
Local
Address
For TCP and UDP listening sockets this shows the destination IP
address (either IPv4 or IPv6)and destination TCP or UDP port
number for which the socket will receive packets. The address and
port are separated by ’:’. If the socket will accept packets addressed
to any of the device’s IP addresses, the IP address will be 0.0.0.0 for
IPv4 or :: for IPv6. For active TCP sessions the IP address will display
which of the devices addresses the session was established with.
For raw sockets this displays the IP address and IP protocol for
which the socket will accept IP packets. The address and protocol
are separated by ’:’. If the socket will accept packets addressed to
any of the device’s IP addresses, the IP address will be 0.0.0.0 for
IPv4 and :: for IPv6. IP Protocol assignments are described
at:
www.iana.org/assignments/protocol-numbers
Remote
Address
For TCP and UDP listening sockets this shows the source IP address
(either IPv4 or IPv6) and source TCP or UDP port number for which
the socket will accept packets. The address and port are separated
by ’:’. If the socket will accept packets addressed from any IP
address, the IP address will be 0.0.0.0 for IPv4or :: for IPv6. This is the
usual case for a listening socket. Normally for a listen socket any
source port will be accepted. This is indicated by “. For active TCP
sessions the IP address will display the remote address and port the
session was established with. For raw sockets the entry in this
column will be 0.0.0.0: or :::for IPv4and IPv6, respectively.
State
This column shows the state of the socket. For TCP sockets this
shows the state of the TCP state machine. For UDP sockets this
column is blank. For raw sockets it contains the IP protocol number.
The possible TCP states are:
LISTEN
SYN-SENT
SYN-RECEIVED
ESTABLISHED
FIN-WAIT-1
FIN-WAIT-2
CLOSE-WAIT
CLOSING
LAST-ACK
TIME-WAIT
CLOSED
RFC793 contains the TCP state machine diagram with Section 3.2
describing each of the states.
Table 16-4: Parameters in the output of the
show ip sockets
command (cont.)
Parameter
Description