# ip-gue(8) - man - phpMan

[IP-FOU(8)]                                       Linux                                      [IP-FOU(8)]



## NAME
       ip-fou - Foo-over-UDP receive port configuration

       ip-gue - Generic UDP Encapsulation receive port configuration

## SYNOPSIS
       **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

## DESCRIPTION
       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 en‐
       capsulation header. The encapsulation header contains the IP protocol number for the encapsu‐
       lated 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 lo‐
       cal address/interface or peer address/port (if set).

## EXAMPLES
### 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

### SEE ALSO
       [**ip**(8)]

## AUTHOR
       Tom Herbert <<therbert@google.com>>



iproute2                                     2 Nov 2014                                    [IP-FOU(8)]