docs/162354: Improve wording in rc.conf(5) regarding network-interfaces.

John Baldwin jhb at
Tue Sep 3 19:08:34 UTC 2013

On Monday, November 07, 2011 12:09:36 pm moritz at wrote:
> >Number:         162354
> >Category:       docs
> >Synopsis:       Improve wording in rc.conf(5) regarding network-interfaces.
> >Confidential:   no
> >Severity:       non-critical
> >Priority:       low
> >Responsible:    freebsd-doc
> >State:          open
> >Quarter:        
> >Keywords:       
> >Date-Required:
> >Class:          doc-bug
> >Submitter-Id:   current-users
> >Arrival-Date:   Mon Nov 07 19:00:22 UTC 2011
> >Closed-Date:
> >Last-Modified:
> >Originator:     Moritz Wilhelmy
> >Release:        FreeBSD 9.0-RC1 amd64
> >Organization:
> >Environment:
> >Description:
> 	According to rc.conf(5), ifconfig_<interface>_alias<n> is deprecated,
> 	because it fails if <n> is not continuously increasing (i.e. if a number 
> 	missing, the rc-scripts abort the search for bigger values of <n>.)
> 	It isn't specified what should be used instead; I guessed
> 	ipv4_addrs_<interface>, but Marco Steinbach brought
> 	/etc/start_if.<interface> to my attention, which is mentioned in the same
> 	paragraph. This is confusing. Could someone please clarify which one of
> 	these is supposed to be used in place of the deprecated
> 	ifconfig_<interface>_alias<n>, especially since ipv4_addrs_<interface> 
> 	not to have an equivalent ipv6_* variable?

I don't think ifconfig_IF_aliasN is depreated, though you can now use
ifconfig_IF_aliases as an alternate.  Also, both ifconfig_IF_aliases
and ifconfig_IF_aliasN handle both IPv4 and IPv6.  See this commit for more

John Baldwin

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