path: root/meta/recipes-core/busybox/files/simple.script
diff options
authorStefan Agner <>2018-05-14 16:44:15 +0200
committerRichard Purdie <>2020-01-21 12:52:48 +0000
commitb77541dbb2f442e51842f9d24c8745a6df2d1478 (patch)
tree2fc0966fc206a53cda9a07df232f0a1dff474fd2 /meta/recipes-core/busybox/files/simple.script
parentf741c342722aaeb1fbe03e700157fc3a2a1fe12f (diff)
busybox: udhcpc: fix IPv6 support when using udhcpc
The udhcpc script calls ip addr flush .. which flushes addresses of any address family, including IPv6. However, busybox udhcpc is IPv4 only and should not influence IPv6 addressing. Hence use ip addr flush with family constrait. The script particularly broke IPv6 SLAAC: Typically when udhcpc calls the script the kernel already assigned the IPv6 link-local address. The flush removes the link-local IPv6 address again and prohibits proper IPv6 operation such as SLAAC since neighbor discovery protocol relies on IPv6 link-local addressing. Signed-off-by: Stefan Agner <> Signed-off-by: Richard Purdie <>
Diffstat (limited to 'meta/recipes-core/busybox/files/simple.script')
1 files changed, 1 insertions, 1 deletions
diff --git a/meta/recipes-core/busybox/files/simple.script b/meta/recipes-core/busybox/files/simple.script
index 6ed0293525..8b5eb53633 100644
--- a/meta/recipes-core/busybox/files/simple.script
+++ b/meta/recipes-core/busybox/files/simple.script
@@ -28,7 +28,7 @@ case "$1" in
if ! root_is_nfs ; then
if [ $have_bin_ip -eq 1 ]; then
- /SBIN_DIR/ip addr flush dev $interface
+ /SBIN_DIR/ip -4 addr flush dev $interface
/SBIN_DIR/ip link set dev $interface up
/SBIN_DIR/ifconfig $interface