busybox/examples/udhcp
Stefan Agner 62744efa47 examples/udhcp/simple.script: 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 constraint.

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 <stefan.agner@toradex.com>
[Taken from https://git.openembedded.org/openembedded-core/commit/meta/recipes-core/busybox/files/simple.script?id=b77541dbb2f442e51842f9d24c8745a6df2d1478]
Signed-off-by: Quentin Schulz <quentin.schulz@streamunlimited.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2020-06-21 03:02:02 +02:00
..
sample.bound examples: make udhcpc script handle /32 netmasks 2017-04-06 00:53:43 +02:00
sample.deconfig
sample.nak
sample.renew examples: make udhcpc script handle /32 netmasks 2017-04-06 00:53:43 +02:00
sample.script chmod 755 some files in examples/* 2009-07-23 21:30:30 +02:00
simple.script examples/udhcp/simple.script: fix IPv6 support when using udhcpc 2020-06-21 03:02:02 +02:00
udhcpd.conf udhcpd: support per-client hostnames in static leases 2019-05-16 11:18:49 +02:00