Bug 83119

Summary:	RFE: networkd: Allow configuring IPv4LL as only a fallback for DHCPv4
Product:	systemd	Reporter:	Jonathan Liu <net147>
Component:	general	Assignee:	Tom Gundersen <teg>
Status:	RESOLVED FIXED	QA Contact:	systemd-bugs
Severity:	normal
Priority:	medium	CC:	teg
Version:	unspecified
Hardware:	All
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Jonathan Liu 2014-08-27 00:49:55 UTC

http://cgit.freedesktop.org/systemd/systemd/commit/?id=ba17915457271cc13d46cbafc876277d037acd67 changed the behavior of the IPv4LL option to be independent of DHCPv4. I would like to be able to configure IPv4LL as only a fallback if DHCPv4 fails to obtain an address as is the case in systemd 215 and earlier.

Comment 1 Tom Gundersen 2014-08-27 08:44:31 UTC

Please explain the usecase for this.

Comment 2 Jonathan Liu 2014-08-27 09:01:05 UTC

I don't want software to use the IPv4LL address and broadcast advertisements with it for auto-discovery.

Also, I may have another interface that is using IPv4LL connected directly to another computer and having multiple IPv4LL addresses can confuse the routing.

Comment 3 Yu Watanabe 2019-08-19 13:28:45 UTC

Please use LinkLocalAddressing=ipv4-fallback

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