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NAME | SYNOPSIS | DESCRIPTION | EXAMPLES | SEE ALSO | AUTHOR | COLOPHON |
IP-FOU(8) Linux IP-FOU(8)
ip-fou - Foo-over-UDP receive port configuration
ip-gue - Generic UDP Encapsulation receive port configuration
ip [ OPTIONS ] fou { COMMAND | help }
ip fou add port PORT { gue | ipproto PROTO } [ local IFADDR ] [
peer IFADDR ] [ peer_port PORT ] [ dev IFNAME ]
ip fou del port PORT [ local IFADDR ] [ peer IFADDR ] [ peer_port
PORT ] [ dev IFNAME ]
ip fou show
The ip fou commands are used to create and delete receive ports for
Foo-over-UDP (FOU) as well as Generic UDP Encapsulation (GUE).
Foo-over-UDP allows encapsulating packets of an IP protocol directly
over UDP. The receiver infers the protocol of a packet received on a
FOU UDP port to be the protocol configured for the port.
Generic UDP Encapsulation (GUE) encapsulates packets of an IP
protocol within UDP and an encapsulation header. The encapsulation
header contains the IP protocol number for the encapsulated packet.
When creating a FOU or GUE receive port, the port number is specified
in PORT argument. If FOU is used, the IP protocol number associated
with the port is specified in PROTO argument. You can bind a port to
a local address/interface, by specifying the address in the local
IFADDR argument or the device in the IFNAME argument. If you would
like to connect the port, you can specify the peer address in the
peer IFADDR argument and peer port in the peer_port PORT argument.
A FOU or GUE receive port is deleted by specifying PORT in the delete
command, as well as local address/interface or peer address/port (if
set).
Configure a FOU receive port for GRE bound to 7777
# ip fou add port 7777 ipproto 47
Configure a FOU receive port for IPIP bound to 8888
# ip fou add port 8888 ipproto 4
Configure a GUE receive port bound to 9999
# ip fou add port 9999 gue
Delete the GUE receive port bound to 9999
# ip fou del port 9999
Configure a FOU receive port for GRE bound to 1.2.3.4:7777
# ip fou add port 7777 ipproto 47 local 1.2.3.4
ip(8)
Tom Herbert <therbert@google.com>
This page is part of the iproute2 (utilities for controlling TCP/IP
networking and traffic) project. Information about the project can
be found at
⟨http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2⟩.
If you have a bug report for this manual page, send it to
netdev@vger.kernel.org, shemminger@osdl.org. This page was obtained
from the project's upstream Git repository
⟨https://git.kernel.org/pub/scm/network/iproute2/iproute2.git⟩ on
2020-08-13. (At that time, the date of the most recent commit that
was found in the repository was 2020-06-24.) If you discover any
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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
iproute2 2 Nov 2014 IP-FOU(8)