{"id":2758,"date":"2022-12-20T15:17:12","date_gmt":"2022-12-20T18:17:12","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/ipfou-man8\/"},"modified":"2022-12-20T15:17:12","modified_gmt":"2022-12-20T18:17:12","slug":"ipfou-man8","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/ipfou-man8\/","title":{"rendered":"IP−FOU (man8)"},"content":{"rendered":"

IP\u2212FOU<\/h1>\n

NAME<\/a>
SYNOPSIS<\/a>
DESCRIPTION<\/a>
EXAMPLES<\/a>
SEE ALSO<\/a>
AUTHOR<\/a> <\/p>\n

\n

NAME <\/a> <\/h2>\n

ip-fou \u2212 Foo-over-UDP receive port configuration<\/p>\n

ip-gue \u2212 Generic UDP Encapsulation receive port configuration<\/p>\n

SYNOPSIS <\/a> <\/h2>\n

ip<\/b> [ OPTIONS<\/i> ] fou<\/b> { COMMAND<\/i> | help<\/b> }<\/p>\n

ip fou add port<\/b> PORT<\/i> { gue<\/b> | ipproto<\/b> PROTO<\/i> } [ local<\/b> IFADDR<\/i> ] [ peer<\/b> IFADDR<\/i> ] [ peer_port<\/b> PORT<\/i> ] [ dev<\/b> IFNAME<\/i> ]
ip fou del port<\/b> PORT<\/i> [ local<\/b> IFADDR<\/i> ] [ peer<\/b> IFADDR<\/i> ] [ peer_port<\/b> PORT<\/i> ] [ dev<\/b> IFNAME<\/i> ]
ip fou show<\/b><\/p>\n

DESCRIPTION <\/a> <\/h2>\n

The ip fou<\/b> commands are used to create and delete receive ports for Foo-over-UDP (FOU) as well as Generic UDP Encapsulation (GUE).<\/p>\n

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.<\/p>\n

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.<\/p>\n

When creating a FOU or GUE receive port, the port number is specified in PORT<\/i> argument. If FOU is used, the IP protocol number associated with the port is specified in PROTO<\/i> argument. You can bind a port to a local address\/interface, by specifying the address in the local IFADDR<\/i> argument or the device in the IFNAME<\/i> argument. If you would like to connect the port, you can specify the peer address in the peer IFADDR<\/i> argument and peer port in the peer_port PORT<\/i> argument.<\/p>\n

A FOU or GUE receive port is deleted by specifying PORT<\/i> in the delete command, as well as local address\/interface or peer address\/port (if set).<\/p>\n

EXAMPLES <\/a> <\/h2>\n

Configure a FOU receive port for GRE bound to 7777<\/b>
# ip fou add port 7777 ipproto 47<\/p>\n

Configure a FOU receive port for IPIP bound to 8888<\/b>
# ip fou add port 8888 ipproto 4<\/p>\n

Configure a GUE receive port bound to 9999<\/b>
# ip fou add port 9999 gue<\/p>\n

Delete the GUE receive port bound to 9999<\/b>
# ip fou del port 9999<\/p>\n

Configure a FOU receive port for GRE bound to 1.2.3.4:7777<\/b>
# ip fou add port 7777 ipproto 47 local 1.2.3.4<\/p>\n

SEE ALSO <\/a> <\/h2>\n

ip<\/b>(8)<\/p>\n

AUTHOR <\/a> <\/h2>\n

Tom Herbert <\/p>\n

\n","protected":false},"excerpt":{"rendered":"

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