{"id":3113,"date":"2022-12-20T16:43:31","date_gmt":"2022-12-20T19:43:31","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/iptunnel-man8\/"},"modified":"2022-12-20T16:43:31","modified_gmt":"2022-12-20T19:43:31","slug":"iptunnel-man8","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/iptunnel-man8\/","title":{"rendered":"IP−TUNNEL (man8)"},"content":{"rendered":"

IP\u2212TUNNEL<\/h1>\n

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

\n

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

ip-tunnel – tunnel configuration<\/p>\n

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

ip tunnel help<\/b><\/p>\n

ip<\/b> [ OPTIONS<\/i> ] tunnel<\/b> { add<\/b> | change<\/b> | del<\/b> | show<\/b> | prl<\/b> | 6rd<\/b> } [ NAME<\/i> ]
[ mode<\/b> MODE<\/i> ] [ remote<\/b> ADDR<\/i> ] [ local<\/b> ADDR<\/i> ]
[ [i<\/b>|o<\/b>]seq<\/b> ] [ [i<\/b>|o<\/b>]key<\/b> KEY<\/i> ] [ [i<\/b>|o<\/b>]csum<\/b> ] ]
[ encaplimit<\/b> ELIM<\/i> ] [ ttl<\/b>|hoplimit<\/b> TTL<\/i> ]
[ tos<\/b> TOS<\/i> ] [ flowlabel<\/b> FLOWLABEL<\/i> ]
[ prl-default<\/b> ADDR<\/i> ] [ prl-nodefault<\/b> ADDR<\/i> ] [ prl-delete<\/b> ADDR<\/i> ]
[ 6rd-prefix<\/b> ADDR<\/i> ] [ 6rd-relay_prefix<\/b> ADDR<\/i> ] [ 6rd-reset<\/b> ]
[ [no<\/b>]pmtudisc<\/b> ] [ [no<\/b>]ignore-df<\/b> ] [ [no<\/b>]allow-localremote<\/b> ]
[ dev<\/b> PHYS_DEV<\/i> ]<\/p>\n

MODE<\/i> := { ipip<\/b> | gre<\/b> | sit<\/b> | isatap<\/b> | vti<\/b> | ip6ip6<\/b> | ipip6<\/b> | ip6gre<\/b> | vti6<\/b> | any<\/b> }<\/p>\n

ADDR<\/i> := { IP_ADDRESS<\/i> | any<\/b> }<\/p>\n

TOS<\/i> := { STRING<\/i> | 00<\/i>..ff<\/i> | inherit<\/b> | inherit\/<\/b>STRING<\/i> | inherit\/<\/b>00<\/i>..<\/b>ff<\/i> }<\/p>\n

ELIM<\/i> := { none<\/b> | 0<\/i>..255<\/i> }<\/p>\n

TTL<\/i> := { 1<\/i>..255<\/i> | inherit<\/b> }<\/p>\n

KEY<\/i> := { DOTTED_QUAD<\/i> | NUMBER<\/i> }<\/p>\n

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

tunnel<\/b> objects are tunnels, encapsulating packets in IP packets and then sending them over the IP infrastructure. The encapsulating (or outer) address family is specified by the -f<\/b> option. The default is IPv4.
ip tunnel add<\/b><\/p>\n

add a new tunnel<\/p>\n

ip tunnel change<\/b><\/p>\n

change an existing tunnel<\/p>\n

ip tunnel delete<\/b><\/p>\n

destroy a tunnel
name<\/b> NAME<\/i> (default)<\/b><\/p>\n

select the tunnel device name.<\/p>\n

mode<\/b> MODE<\/i><\/p>\n

set the tunnel mode. Available modes depend on the encapsulating address family.
Modes for IPv4 encapsulation available: ipip<\/b>, sit<\/b>, isatap<\/b>, vti<\/b>, and gre<\/b>.
Modes for IPv6 encapsulation available: ip6ip6<\/b>, ipip6<\/b>, ip6gre<\/b>, vti6<\/b>, and any<\/b>.<\/p>\n

remote<\/b> ADDRESS<\/i><\/p>\n

set the remote endpoint of the tunnel.<\/p>\n

local<\/b> ADDRESS<\/i><\/p>\n

set the fixed local address for tunneled packets. It must be an address on another interface of this host.<\/p>\n\n\n
<\/td>\n\n

ttl<\/b> N<\/i><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

hoplimit<\/b> N<\/i><\/p>\n

set a fixed TTL (IPv4) or hoplimit (IPv6) N<\/i> on tunneled packets. N<\/i> is a number in the range 1–255. 0 is a special value meaning that packets inherit the TTL value. The default value for IPv4 tunnels is: inherit<\/b>. The default value for IPv6 tunnels is: 64<\/b>.<\/p>\n\n\n
<\/td>\n\n

tos<\/b> T<\/i><\/p>\n<\/td>\n

 <\/td>\n<\/tr>\n<\/table>\n

dsfield<\/b> T<\/i>
tclass<\/b> T<\/i><\/p>\n

set the type of service (IPv4) or traffic class (IPv6) field on tunneled packets, which can be specified as either a two-digit hex value (e.g. c0) or a predefined string (e.g. internet). The value inherit<\/b> causes the field to be copied from the original IP header. The values inherit\/<\/b>STRING<\/i> or inherit\/<\/b>00<\/i>..<\/b>ff<\/i> will set the field to STRING<\/i> or 00<\/i>..ff<\/i> when tunneling non-IP packets. The default value is 00.<\/p>\n

dev<\/b> NAME<\/i><\/p>\n

bind the tunnel to the device NAME<\/i> so that tunneled packets will only be routed via this device and will not be able to escape to another device when the route to endpoint changes.<\/p>\n

nopmtudisc<\/b><\/p>\n

disable Path MTU Discovery on this tunnel. It is enabled by default. Note that a fixed ttl is incompatible with this option: tunneling with a fixed ttl always makes pmtu discovery.<\/p>\n

ignore-df<\/b><\/p>\n

enable IPv4 DF suppression on this tunnel. Normally datagrams that exceed the MTU will be fragmented; the presence of the DF flag inhibits this, resulting instead in an ICMP Unreachable (Fragmentation Required) message. Enabling this attribute causes the DF flag to be ignored.<\/p>\n\n\n\n\n
<\/td>\n\n

key<\/b> K<\/i><\/p>\n<\/td>\n

<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n\n

ikey<\/b> K<\/i><\/p>\n<\/td>\n

<\/td>\n <\/td>\n<\/tr>\n
<\/td>\n\n

okey<\/b> K<\/i><\/p>\n<\/td>\n

<\/td>\n\n

( only GRE tunnels<\/b> ) use keyed GRE with key K<\/i>. K<\/i> is either a number or an IP address-like dotted quad. The key<\/b> parameter sets the key to use in both directions. The ikey<\/b> and okey<\/b> parameters set different keys for input and output.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

csum<\/b>, icsum<\/b>, ocsum<\/b><\/p>\n

( only GRE tunnels<\/b> ) generate\/require checksums for tunneled packets. The ocsum<\/b> flag calculates checksums for outgoing packets. The icsum<\/b> flag requires that all input packets have the correct checksum. The csum<\/b> flag is equivalent to the combination icsum ocsum<\/b>.<\/p>\n

seq<\/b>, iseq<\/b>, oseq<\/b><\/p>\n

( only GRE tunnels<\/b> ) serialize packets. The oseq<\/b> flag enables sequencing of outgoing packets. The iseq<\/b> flag requires that all input packets are serialized. The seq<\/b> flag is equivalent to the combination iseq oseq<\/b>. It doesn\u2019t work. Don\u2019t use it.<\/b><\/p>\n

encaplimit<\/b> ELIM<\/i><\/p>\n

( only IPv6 tunnels<\/b> ) set a fixed encapsulation limit. Default is 4.<\/p>\n

flowlabel<\/b> FLOWLABEL<\/i><\/p>\n

( only IPv6 tunnels<\/b> ) set a fixed flowlabel.<\/p>\n

allow-localremote<\/b><\/p>\n

( only IPv6 tunnels<\/b> ) allow remote endpoint on the local host.<\/p>\n

ip tunnel prl<\/b><\/p>\n

potential router list (ISATAP only)
dev<\/b> NAME<\/i><\/p>\n

mandatory device name.<\/p>\n

prl-default<\/b> ADDR<\/i>
prl-nodefault<\/b> ADDR<\/i>
prl-delete<\/b> ADDR<\/i><\/p>\n

Add or delete ADDR<\/b> as a potential router or default router.<\/p>\n

ip tunnel show<\/b><\/p>\n

list tunnels This command has no arguments.<\/p>\n

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

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

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

Original Manpage by Michail Litvak <\/p>\n

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

ip-tunnel – tunnel configuration <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[5,52,261,4],"class_list":["post-3113","post","type-post","status-publish","format-standard","hentry","category-8-administracion-del-sistema","tag-5","tag-administracion","tag-ip-tunnel","tag-man8"],"gutentor_comment":0,"_links":{"self":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/3113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/comments?post=3113"}],"version-history":[{"count":0,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/posts\/3113\/revisions"}],"wp:attachment":[{"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/media?parent=3113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/categories?post=3113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lode.uno\/linux-man\/wp-json\/wp\/v2\/tags?post=3113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}