tree 3282ae38bfb8e9d3930c9a1c5de60f0fcbc0d3a6
parent 6e48ee025dc9a20cfe3fdc5a268cb0b971d58a4e
author Julian Anastasov <ja@ssi.bg> 1528671774 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1529971588 +0800

ipv6: allow PMTU exceptions to local routes

[ Upstream commit 0975764684487bf3f7a47eef009e750ea41bd514 ]

IPVS setups with local client and remote tunnel server need
to create exception for the local virtual IP. What we do is to
change PMTU from 64KB (on "lo") to 1460 in the common case.

Suggested-by: Martin KaFai Lau <kafai@fb.com>
Fixes: 45e4fd26683c ("ipv6: Only create RTF_CACHE routes after encountering pmtu exception")
Fixes: 7343ff31ebf0 ("ipv6: Don't create clones of host routes.")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Acked-by: David Ahern <dsahern@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>