linux下网卡驱动问题

woodwalker

机器上有两个网卡eth0和eth1，两个网卡都默认使用了bcm5700.o这个模块，
同时这两个网卡还可以识别使用e1000.o这个模块（猜想），
但我现在想eth1改用e1000.o，该如何做？
尝试修改modules.conf：
alias eth0 bcm5700
alias eth1 e1000
但没有作用
系统启动时显示如下信息：
Jun 21 21:23:32 localhost kernel: Broadcom Gigabit Ethernet Driver bcm5700 with Broadcom NIC Extension (NICE) ver. 7.3.5 (06/23/04)
Jun 21 21:23:32 localhost kernel: PCI: Setting latency timer of device 04:00.0 to 64
Jun 21 21:23:32 localhost kernel: eth0: Broadcom BCM5721 1000Base-T PCI Express found at mem fc6f0000, IRQ 16, node addr 00a0d1e40d5
1
Jun 21 21:23:32 localhost kernel: eth0: Broadcom BCM5750 Integrated Copper transceiver found
Jun 21 21:23:32 localhost kernel: eth0: Scatter-gather ON, 64-bit DMA ON, Tx Checksum ON, Rx Checksum ON, 802.1Q VLAN ON, NAPI ON
Jun 21 21:23:32 localhost kernel: PCI: Setting latency timer of device 03:00.0 to 64
Jun 21 21:23:32 localhost kernel: eth1: Broadcom BCM5721 1000Base-T PCI Express found at mem fc5f0000, IRQ 16, node addr 00a0d1e40e0
6
Jun 21 21:23:32 localhost kernel: eth1: Broadcom BCM5750 Integrated Copper transceiver found
Jun 21 21:23:32 localhost kernel: eth1: Scatter-gather ON, 64-bit DMA ON, Tx Checksum ON, Rx Checksum ON, 802.1Q VLAN ON, NAPI ON
Jun 21 21:23:32 localhost kernel: bcm5700: eth0 NIC Link is UP, 100 Mbps full duplex
Jun 21 21:23:32 localhost kernel: device eth1 entered promiscuous mode
Jun 21 21:23:32 localhost kernel: bcm5700: eth1 NIC Link is UP, 1000 Mbps full duplex