Bridge Networking on CentOS brctl error

Question

I am trying to bridge an interface to another one but when I execute ifup br_wan to the interface I get the error message below. It's on CentOS 7 and I have the exact same setup on another box so I'm unsure what's going wrong.

Incorrect number of arguments for command Usage: brctl addbr add bridge

ifcfg-enp0s20f0

TYPE=Ethernet
BOOTPROTO=none
NAME=enp0s20f0
DEVICE=enp0s20f0
ONBOOT=yes
stp=yes
BRIDGE=br_wan
NM_CONTROLLED=no
NETWORKING_IPV6=no # disable ipv6

ifcfg-br_wan

DEVICEE=br_wan
TYPE=Bridge
ONBOOT=yes
BOOTPROTO=dhcp
NM_CONTROLLED=no
DELAY=0
NETWORKING_IPV6=no # disable ipv6

brctl show

bridge name     bridge id               STP enabled     interfaces
br_pran         8000.0008a20d13d8       no              enp0s20f1
br_wan          8000.0008a20d13d7       no              enp0s20f0

I dont really know why ifup is calling brctl so if anyone could point me in the right direction I'd appreciate it.

Answer 1

As Michael said in the comments section you have a typo in your ifcfg-br_wan file.

Please edit the file and change the first line from DEVICEE=br0 to DEVICE=br0 and try again.