Viewing A Portion Of The Packet; Viewing A Specific Ip Address; Saving Tcpdump Results To Local File - Nokia IP100 Series Installation Manual

Troubleshooting
Saving
86
The following example hides WWW traffic for the interface:
tcpdump -i eth-s1p1c0 not port 80

Viewing a Portion of the Packet

tcpdump -i logical interface name -s packet size -vv
The following example shows 320 bytes of the packet:
tcpdump -i eth-s1p1c0 -s 320 -vv

Viewing a Specific IP Address

tcpdump -i logical interface name host IP address
The following example shows only packets with IP address 10.10.10.1:
tcpdump -i eth-s3p1c0 host 10.10.10.1
Results to Local File
tcpdump
Generate a trace file by using tcpdump with the -w flag. This stores
the packets in a local file for later viewing with tcpdump. Use this
feature when you want to send a copy of the tcpdump results to Nokia
Customer Support.
The -w flag copies the first 68 bytes of every packet, unless you
increase the capture size.
For users running without data encryption, passwords are stored in the
file.
The file grows very quickly on a busy network. We
NOTE:
recommend creating this file in the /var partition.
IP100 Series Installation Guide