Message ID | 1242767023-9501-4-git-send-email-contact@saschahlusiak.de |
---|---|
State | Superseded, archived |
Delegated to: | David Miller |
Headers | show |
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index a8218bc..550fb79 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1520,6 +1520,8 @@ static int addrconf_ifid_infiniband(u8 *eui, struct net_device *dev) int __ipv6_isatap_ifid(u8 *eui, __be32 addr) { + if (addr == 0) + return -1; eui[0] = (ipv4_is_zeronet(addr) || ipv4_is_private_10(addr) || ipv4_is_loopback(addr) || ipv4_is_linklocal_169(addr) || ipv4_is_private_172(addr) || ipv4_is_test_192(addr) ||
A tunnel with no local ipv4 endpoint would otherwise use the ISATAP linklocal address fe80::5efe:0:0, which is invalid. Rather not add a linklocal address at all. Signed-off-by: Sascha Hlusiak <contact@saschahlusiak.de> --- net/ipv6/addrconf.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-)