- grep -qE "^ *$iface:" /proc/net/dev && {
- local mtu macaddr txqueuelen
- config_get mtu "$config" mtu
- config_get macaddr "$config" macaddr
- config_get txqueuelen "$config" txqueuelen
- [ -n "$macaddr" ] && $DEBUG ifconfig "$iface" down
- $DEBUG ifconfig "$iface" ${macaddr:+hw ether "$macaddr"} ${mtu:+mtu $mtu} ${txqueuelen:+txqueuelen $txqueuelen} up
- }