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authorUlrich Weber <uweber@astaro.com>2010-02-26 13:34:49 +0100
committerDavid S. Miller <davem@davemloft.net>2010-02-26 13:34:49 +0100
commit14f3ad6f4a12495b32b0dd743bc7179f36658208 (patch)
treebff2b347d1a1755955ba1b37c561b1bff2f6d861 /include
parentinfiniband: convert to use netdev_for_each_mc_addr (diff)
downloadlinux-14f3ad6f4a12495b32b0dd743bc7179f36658208.tar.xz
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ipv6: Use 1280 as min MTU for ipv6 forwarding
Clients will set their MTU to 1280 if they receive a ICMPV6_PKT_TOOBIG message with an MTU less than 1280. To allow encapsulating of packets over a 1280 link we should always accept packets with a size of 1280 for forwarding even if the path has a lower MTU and fragment the encapsulated packets afterwards. In case a forwarded packet is not going to be encapsulated a ICMPV6_PKT_TOOBIG msg will still be send by ip6_fragment() with the correct MTU. Signed-off-by: Ulrich Weber <uweber@astaro.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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