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.TH IP\-TUNNEL 8 "20 Dec 2011" "iproute2" "Linux"
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ip-tunnel - tunnel configuration
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.RI " { " COMMAND " | "
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.BR "ip tunnel" " { " add " | " change " | " del " | " show " | " prl " }"
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.RB "[ [" i "|" o "]" seq " ] [ [" i "|" o "]" key
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.RB "[" i "|" o "]" csum " ] ]"
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.RB "[ [" no "]" pmtudisc " ]"
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.RB "[ " "dscp inherit" " ]"
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.RB " { " ipip " | " gre " | " sit " | " isatap " | " ip6ip6 " | " ipip6 " | " any " }"
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.IR ADDR " := { " IP_ADDRESS " |"
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.IR TOS " := { " NUMBER " |"
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.IR TTL " := { " 1 ".." 255 " | "
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.IR KEY " := { " DOTTED_QUAD " | " NUMBER " }"
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.IR TIME " := " NUMBER "[s|ms]"
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objects are tunnels, encapsulating packets in IP packets and then
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sending them over the IP infrastructure.
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The encapulating (or outer) address family is specified by the
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option. The default is IPv4.
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.SS ip tunnel add - add a new tunnel
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.SS ip tunnel change - change an existing tunnel
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.SS ip tunnel delete - destroy a tunnel
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.BI name " NAME " (default)
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select the tunnel device name.
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set the tunnel mode. Available modes depend on the encapsulating address family.
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Modes for IPv4 encapsulation available:
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.BR ipip ", " sit ", " isatap " and " gre "."
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Modes for IPv6 encapsulation available:
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.BR ip6ip6 ", " ipip6 " and " any "."
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.BI remote " ADDRESS"
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set the remote endpoint of the tunnel.
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set the fixed local address for tunneled packets.
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It must be an address on another interface of this host.
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is a number in the range 1--255. 0 is a special value
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meaning that packets inherit the TTL value.
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The default value for IPv4 tunnels is:
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The default value for IPv6 tunnels is:
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set a fixed TOS (or traffic class in IPv6)
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The default value is:
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bind the tunnel to the device
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so that tunneled packets will only be routed via this device and will
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not be able to escape to another device when the route to endpoint
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disable Path MTU Discovery on this tunnel.
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It is enabled by default. Note that a fixed ttl is incompatible
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with this option: tunnelling with a fixed ttl always makes pmtu
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.RB ( " only GRE tunnels " )
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use keyed GRE with key
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is either a number or an IP address-like dotted quad.
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parameter sets the key to use in both directions.
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.BR ikey " and " okey
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parameters set different keys for input and output.
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.BR csum ", " icsum ", " ocsum
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.RB ( " only GRE tunnels " )
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generate/require checksums for tunneled packets.
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flag calculates checksums for outgoing packets.
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flag requires that all input packets have the correct
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flag is equivalent to the combination
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.BR seq ", " iseq ", " oseq
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.RB ( " only GRE tunnels " )
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flag enables sequencing of outgoing packets.
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flag requires that all input packets are serialized.
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flag is equivalent to the combination
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.B It isn't work. Don't use it.
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.RB ( " only IPv6 tunnels " )
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Inherit DS field between inner and outer header.
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.RB ( " only IPv6 tunnels " )
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set a fixed encapsulation limit. Default is 4.
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.BI flowlabel " FLOWLABEL"
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.RB ( " only IPv6 tunnels " )
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set a fixed flowlabel.
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.SS ip tunnel prl - potential router list (ISATAP only)
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mandatory device name.
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.BI prl-default " ADDR"
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.BI prl-nodefault " ADDR"
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.BI prl-delete " ADDR"
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.RB "Add or delete " ADDR
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as a potential router or default router.
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.SS ip tunnel show - list tunnels
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This command has no arguments.
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Original Manpage by Michail Litvak <mci@owl.openwall.com>
added
removed
man/man8/ip-tunnel.8
