diff --git a/plugins/guests/gentoo/cap/configure_networks.rb b/plugins/guests/gentoo/cap/configure_networks.rb
index ab27a58e3..38b18501f 100644
--- a/plugins/guests/gentoo/cap/configure_networks.rb
+++ b/plugins/guests/gentoo/cap/configure_networks.rb
@@ -12,15 +12,11 @@ module VagrantPlugins
           comm = machine.communicate
 
           commands   = []
-          interfaces = []
+          interfaces = machine.guest.capability(:network_interfaces, "/bin/ip")
 
           # Remove any previous network additions to the configuration file.
           commands << "sed -i'' -e '/^#VAGRANT-BEGIN/,/^#VAGRANT-END/ d' /etc/conf.d/net"
 
-          comm.sudo("ifconfig -a | grep -o ^[0-9a-z]* | grep -v '^lo'") do |_, stdout|
-            interfaces = stdout.split("\n")
-          end
-
           networks.each_with_index do |network, i|
             network[:device] = interfaces[network[:interface]]
 
diff --git a/plugins/guests/linux/cap/network_interfaces.rb b/plugins/guests/linux/cap/network_interfaces.rb
index fd1480aa6..3360fde78 100644
--- a/plugins/guests/linux/cap/network_interfaces.rb
+++ b/plugins/guests/linux/cap/network_interfaces.rb
@@ -7,9 +7,9 @@ module VagrantPlugins
         #   eth0\nenp0s8\nenp0s9
         #
         # @return [Array<String>]
-        def self.network_interfaces(machine)
+        def self.network_interfaces(machine, path = "/sbin/ip")
           s = ""
-          machine.communicate.sudo("/sbin/ip -o -0 addr | grep -v LOOPBACK | awk '{print $2}' | sed 's/://'") do |type, data|
+          machine.communicate.sudo("#{path} -o -0 addr | grep -v LOOPBACK | awk '{print $2}' | sed 's/://'") do |type, data|
             s << data if type == :stdout
           end
           s.split("\n")