Bug 231576 - [RC.CONF(5)] cloned_interfaces improvement
Summary: [RC.CONF(5)] cloned_interfaces improvement
Status: Open
Alias: None
Product: Documentation
Classification: Unclassified
Component: Manual Pages (show other bugs)
Version: Latest
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-09-22 10:05 UTC by Pekka Järvinen
Modified: 2018-09-23 17:47 UTC (History)
2 users (show)

See Also:


Attachments

Note You need to log in before you can comment on or make changes to this bug.
Description Pekka Järvinen 2018-09-22 10:05:26 UTC
Hello!

man page:
cloned_interfaces
  (str) Set to the list of clonable network interfaces to cre-
  ate on this host.  Further cloning arguments may be passed to
  the ifconfig(8) create command for each interface by setting
  the create_args_<interface> variable. If an interface name
  is specified with ``:sticky'' keyword, the interface will not
  be destroyed even when rc.d/netif script is invoked with
  ``stop'' argument.  This is useful when reconfiguring the
  interface without destroying it.  Entries in
  cloned_interfaces are automatically appended to
  network_interfaces for configuration.
  
Questions not answered:
- What it actually does? Repeats packets? Creates some kind of dummy device?
- When I (don't) need it?
- Security implications?
- Performance implications?

if_bridge uses it but it's not referenced.
Comment 1 Hiroki Sato freebsd_committer 2018-09-23 13:23:06 UTC
Please post a question to a public mailling list such as freebsd-questions, not to submit it as a problem report.
Comment 2 Pekka Järvinen 2018-09-23 17:47:26 UTC
It's not a mailing list question. Manual or handbook has to give an explanation of the parameter. Otherwise it's a undocumented feature. Common networking such as bridge and epair uses it, which are core components so it has to be explained properly through documentation. Not random people at mailing list.