diff options
| author | Umut Tezduyar Lindskog <umut.tezduyar@axis.com> | 2014-04-02 21:31:12 +0200 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2014-04-03 16:00:25 +0200 |
| commit | aba496a58acf9d9c61314de71353550e579f85ee (patch) | |
| tree | e554123004bba327c3114539142047d4c124f40a /man | |
| parent | 3e790eae01ce74f94a5233adeab12c64508916e0 (diff) | |
networkd: smooth transition from ipv4ll to dhcp address
Currently when both ipv4ll and dhcp are enabled, ipv4ll
address (if one has been claimed) is removed when dhcp
address is aquired. This is not the best thing to do
since there might be clients unaware of the removal
trying to communicate.
This patch provides a smooth transition between ipv4ll
and dhcp. If ipv4ll address was claimed [1] before dhcp,
address is marked as deprecated. Deprecated address is still
a valid address and packets can be received on it but address
cannot be selected as a source address. If dhcp lease cannot
be extended, then ipv4ll address is marked as valid again.
[1] If there is no collision, claiming IPv4LL takes between 4 to
7 seconds.
Diffstat (limited to 'man')
| -rw-r--r-- | man/systemd.network.xml | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/man/systemd.network.xml b/man/systemd.network.xml index f3b3b315b6..f49de17ee1 100644 --- a/man/systemd.network.xml +++ b/man/systemd.network.xml @@ -192,8 +192,9 @@ <term><varname>IPv4LL=</varname></term> <listitem> <para>A boolean. When true, enables IPv4 link-local support. - If <literal>DHCP=</literal> is also true, IPv4 link-local - address will be removed upon acquiring a DHCP lease. + If <literal>DHCP=</literal> is also true, acquiring DHCP address + will deprecate previously acquired IPv4 link-local address or + stop acquiring process if there hasn't been one acquired before. </para> </listitem> </varlistentry> |