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Thomas Winter authored
We recently found that our non-point-to-point tunnels were not generating any IPv6 link local address and instead generating an IPv6 compat address, breaking IPv6 communication on the tunnel. Previously, addrconf_gre_config always would call addrconf_addr_gen and generate a EUI64 link local address for the tunnel. Then commit e5dd7294 changed the code path so that add_v4_addrs is called but this only generates a compat IPv6 address for non-point-to-point tunnels. I assume the compat address is specifically for SIT tunnels so have kept that only for SIT - GRE tunnels now always generate link local addresses. Fixes: e5dd7294 ("ip/ip6_gre: use the same logic as SIT interfaces when computing v6LL address") Signed-off-by:
Thomas Winter <Thomas.Winter@alliedtelesis.co.nz> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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