Что выбрать для настройки нескольких сетевых карт на сервере

#!/bin/sh
. /etc/rc.conf
. /etc/rc.d/functions
ifc="eth0"
gw="via 10.3.10.1"
d_start() {
 stat_busy "Starting localnet"
 ip link set $ifc up
 ip addr add 10.3.10.2/24 brd 10.3.10.255 dev $ifc
 ip addr add 192.168.5.2/16 brd 192.168.255.255 dev $ifc
 ip route add айпи.впн.сервера $gw
 ip route add default $gw tab default
 add_daemon localnet
 stat_done
}
d_stop() {
 stat_busy "Stopping localnet"
 ip addr flush dev $ifc
 ip link set $ifc down
 rm_daemon localnet
 stat_done
}
case "$1" in
start) d_start
 ;;
stop) d_stop
 ;;
restart) d_stop ; d_start
 ;;
*)
 echo "usage $0 start|stop|restart" >&2
 exit 1
esac
exit 0

bring_interface()
{
    local INTERFACE="$2"
    case "$1" in
        up)
            if ! ( eval $IFACE_UP ); then
                return 1
            fi
            ip link set dev "$INTERFACE" up &>/dev/null
            sleep "${UP_SLEEP:-2}"
        ;;
        flush|down)
            if ! ( eval $IFACE_DOWN ); then
                return 1
            fi
            ip addr flush dev "$INTERFACE" &>/dev/null
        ;;&
        down)
            ip link set dev "$INTERFACE" down &>/dev/null
        ;;
    esac
}

CONNECTION='ethernet'
DESCRIPTION='A basic static ethernet connection using iproute'
INTERFACE='eth1'
IP='static'
ADDR='192.168.100.11/24'
#ROUTES=('192.168.0.0/24 via 192.168.100.1')
#GATEWAY='192.168.100.1'
DNS=('192.168.100.1')

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500  metric 1
        inet6 fe80::226:5aff:fe76:5942  prefixlen 64  scopeid 0x20<link>
        ether 00:26:5a:76:59:42  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3  bytes 238 (238.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 17  base 0xe800