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[ Upstream commitb6e9e5df4e] IPv4 currently does not support nexthops outside of the AF_INET family. Specifically, it does not handle RTA_VIA attribute. If it is passed in a route add request, the actual route added only uses the device which is clearly not what the user intended: $ ip ro add 172.16.1.0/24 via inet6 2001:db8:1::1 dev eth0 $ ip ro ls ... 172.16.1.0/24 dev eth0 Catch this and fail the route add: $ ip ro add 172.16.1.0/24 via inet6 2001:db8:1::1 dev eth0 Error: IPv4 does not support RTA_VIA attribute. Fixes:03c0566542("mpls: Netlink commands to add, remove, and dump routes") Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.