eselect-net

eselect-net helps to define configuration profiles for netifrc and switch between interface configurations.

Usage

To define a new configuration use make command:

root # eselect net make eth-dhcpcd

One can make several configurations. Let list defined configurations:

root # eselect net list
Available network configurations:
  [1]   wireless-wpa-supplicant
  [2]   3g-dongle-at
  [3]   3g-dongle-comcast
  [4]   eth-static-ip
  [5]   eth-dhcpcd
  [6]   wireless-ap

These configurations are stored in /etc/eselect/net/conf.d. Let edit eth-dhcpcd configurations:

root # $EDITOR /etc/eselect/net/conf.d/eth-dhcpcd

# -*- gentoo-conf-d -*- vim: ft=gentoo-conf-d
#
# This is a netifrc network configuration.  It will be processed to make config
# file.  _iface_ in labels is a placeholder for interface, so modules__iface_
# will be modules_eth0 in produced config file.

config__iface_="dhcpcd"
dhcpcd__iface_=( "-S domain_name_servers='8.8.8.8 8.8.4.4'" )

Now to configure eth0 by eth-dhcpcd use set command:

root # eselect net set eth0 5

It's done by making link /etc/conf.d/net.eth0 to /etc/eselect/net/devs/net.eth0. Current interface configurations can be queried by show command:

root # eselect net show
Network devices configurations:
  eth0                      eth-dhcpcd
  lo                        not configured by eselect
  ppp0                      3g-dongle-at

Notice: eselect-net is not aware of configurations in /etc/conf.d/net and will show not configured for those interfaces. Also if /etc/conf.d/net.iface exist but not linked to eselect-net managed configurations, It will be shown as not configured by eselect.

Now let change eth-dhcpcd to ask dhcpcd do its job in background:

root # $EDITOR /etc/eselect/net/conf.d/eth-dhcpcd

# -*- gentoo-conf-d -*- vim: ft=gentoo-conf-d
#
# This is a netifrc network configuration.  It will be processed to make config
# file.  _iface_ in labels is a placeholder for interface, so modules__iface_
# will be modules_eth0 in produced config file.

config__iface_="dhcpcd"
dhcpcd__iface_=( "-S domain_name_servers='8.8.8.8 8.8.4.4' -b" )

check command will show which interface is using current profile configuration and which one is not:

root # eselect net check

Network configurations status:
  eth0                      outdated
  ppp0                      ok

To apply latest dhcpcd-eth0 change to eth0 configuration, use update:

root # eselect net update eth1

To make eth0 don't use dhcpcd-eth0, use unset command:

root # eselect net unset eth0

Installation

There is eselect-net package in mv overlay made and maintained by Martin Väth.

Also you can install it manually by make:

make prefix=/usr install