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From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
To: netdev@vger.kernel.org
Cc: itk-intern@samfundet.no
Subject: fe80::/64 route missing on GRE tunnels
Date: Tue, 11 Feb 2014 22:55:11 +0100	[thread overview]
Message-ID: <20140211215510.GA6994@sesse.net> (raw)

Hi,

It seems that recent kernels no longer automatically add the link-local route
to GRE tunnels. 3.10.27 does it right:

  root@morgental:~# ip tunnel add foo mode gre remote 1.2.3.4 ttl 64
  root@morgental:~# ip link set foo up mtu 1468
  root@morgental:~# ip -6 route show dev foo
  fe80::/64  proto kernel  metric 256 

but on 3.13.1, no such route shows up. I can add it manually, though.

This broke our in-house IPv6 tunnel broker (which essentially uses link-local
addresses over GRE tunnels to bring up BGP sessions). Do you think you could
have a look?

/* Steinar */
-- 
Homepage: http://www.sesse.net/

             reply	other threads:[~2014-02-11 21:55 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-11 21:55 Steinar H. Gunderson [this message]
2014-02-11 21:59 ` fe80::/64 route missing on GRE tunnels Steinar H. Gunderson
2014-02-15  7:45   ` Hannes Frederic Sowa
2014-02-15 12:10     ` Hannes Frederic Sowa
2014-02-17  9:37       ` Nicolas Dichtel
2014-02-17  9:45         ` Steinar H. Gunderson
2014-02-17  9:59           ` Nicolas Dichtel
2014-02-17 10:17             ` Steinar H. Gunderson
2014-02-17 10:34               ` Nicolas Dichtel
2014-02-17 13:04                 ` Hannes Frederic Sowa
2014-02-17 13:22                 ` [PATCH net] gre: add link local route when local addr is any Nicolas Dichtel
2014-02-17 19:09                   ` David Miller

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