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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | SEE ALSO | COLOPHON |
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ovs-tcpdump(8) Open vSwitch Manual ovs-tcpdump(8)
ovs-tcpdump - Dump traffic from an Open vSwitch port using tcpdump.
ovs-tcpdump -i port tcpdump options...
ovs-tcpdump creates switch mirror ports in the ovs-vswitchd daemon
and executes tcpdump to listen against those ports. When the tcpdump
instance exits, it then cleans up the mirror port it created.
ovs-tcpdump will not allow multiple mirrors for the same port. It has
some logic to parse the current configuration and prevent duplicate
mirrors.
The -i option may not appear multiple times.
It is important to note that under Linux based kernels, tap devices
do not receive packets unless the specific tuntap device has been
opened by an application. This requires CAP_NET_ADMIN privileges, so
the ovs-tcpdump command must be run as a user with such permissions
(this is usually a super-user).
-h
--help Prints a brief help message to the console.
-V
--version
Prints version information to the console.
--db-sock
The Open vSwitch database socket connection string. The
default is unix:/usr/local/var/run/openvswitch/db.sock
--dump-cmd
The command to run instead of tcpdump.
-i
--interface
The interface for which a mirror port should be created, and
packets should be dumped.
--mirror-to
The name of the interface which should be the destination of
the mirrored packets. The default is miINTERFACE
ovs-appctl(8), ovs-vswitchd(8), ovs-pcap(1), ovs-tcpundump(1),
tcpdump(8), wireshark(8).
This page is part of the Open vSwitch (a distributed virtual
multilayer switch) project. Information about the project can be
found at ⟨http://openvswitch.org/⟩. If you have a bug report for
this manual page, send it to bugs@openvswitch.org. This page was
obtained from the project's upstream Git repository
⟨https://github.com/openvswitch/ovs.git⟩ on 2018-02-02. (At that
time, the date of the most recent commit that was found in the repos‐
itory was 2018-02-01.) If you discover any rendering problems in
this HTML version of the page, or you believe there is a better or
more up-to-date source for the page, or you have corrections or
improvements to the information in this COLOPHON (which is not part
of the original manual page), send a mail to man-pages@man7.org
Open vSwitch 2.8.90 ovs-tcpdump(8)
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