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[Bug 1771764] Re: iproute2: unable to add ip lwt mpls route on xenial

 

** Also affects: iproute2 (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: iproute2 (Ubuntu)
       Status: Triaged => Fix Released

** Changed in: iproute2 (Ubuntu Xenial)
   Importance: Undecided => Wishlist

** Changed in: iproute2 (Ubuntu Xenial)
       Status: New => Triaged

** Summary changed:

- iproute2: unable to add ip lwt mpls route on xenial
+ Add encapsulation support to ip route

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https://bugs.launchpad.net/bugs/1771764

Title:
  Add encapsulation support to ip route

Status in iproute2 package in Ubuntu:
  Fix Released
Status in iproute2 source package in Xenial:
  Triaged

Bug description:
  The following command does not work:

  $ ip route add 10.201.0.0/24 nexthop encap mpls 300 via 10.200.0.1 dev ntfp2
  Error: "nexthop" or end of line is expected instead of "encap"

  In fact, iproute2 version points to v4.3.0, but the xenial kernel is a 4.4.
  $ ip -V
  ip utility, iproute2-ss151103

  =>
  https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=6720eceff7b4

  With an iproute2 v4.4.0 (iproute2-ss160111), that command works:
  $ modprobe mpls_iptunnel
  $ ./ip/ip route add 10.201.0.0/24 nexthop encap mpls 300 via 10.200.0.1 dev ntfp2
  $ ./ip/ip r
  [snip]
  10.201.0.0/24  encap mpls  300 via 10.200.0.1 dev ntfp2

  At least, this patch is missing:
  1e5293056a02 ("lwtunnel: Add encapsulation support to ip route")
  https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=1e5293056a02

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