Parameter <option>
Option Value Meaning
host IP address or host
name
Only those packets are recorded that have the specified IP
address or host name as source or as destination.
net Network range Only those packets are recorded that have an IP address or
host name from the specified network range as source or as
destination.
port A number from 0 to
65535
Records packets that have the specified port, e.g. 5900, on
the source or on the destination side.
portrange A range between 0
and 65535
Records packets that have a port in the specified range on the
source or on the destination side.
src host, net, port or por‐
trange
Only those packets are recorded that have the specified value
as source.
dst host, net, port or por‐
trange
Only those packets are recorded that have the specified value
as destination.
proto ether, fddi, tr, wlan,
ip, ip6, arp, rarp, dec‐
net, tcp and udp
Network protocol in which packets can be recorded.
You can link several options using the following expressions:
and, or, not
You can limit extended expressions using the following characters:
( ) and '
Reference
Further parameter assignments can be found at www.tcpdump.org
Examples
-n port 22 ; Records whether packets
arrive at port 22 of the local
system.
-i eth0 port 4080 ; Records all data for port
4080 arriving at the eth0
interface.
-i 2 ; Records all data arriving at
the interface with adapter
number 2.
-n host 10.113.20.0 ; Records the network traffic
from system 10.113.20.0,
whereby the IP address is not
changed to the host name.
Configuring the network
17.6 Station-related network diagnostics
SINUMERIK Operate (IM9)
400 Commissioning Manual, 12/2017, 6FC5397-1DP40-6BA1
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