为啥每次开机后都要手动ifconfig eth0 up

llj

开机的时候eth0已经起来了，ifconfig -a也能看到eth0，但就是pon dsl-provider不行，提示eth0已经down，手动ifconfig eth0 up后再pon dsl-provider后就正常。dmesg信息关于网卡部分如下：

NET: Registered protocol family 10
lo: Disabled Privacy Extensions
IPv6 over IPv4 tunneling driver
ADDRCONF(NETDEV_UP): eth0: link is not ready
b44: eth0: Link is up at 100 Mbps, full duplex.
b44: eth0: Flow control is off for TX and off for RX.
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
CSLIP: code copyright 1989 Regents of the University of California
PPP generic driver version 2.4.2
NET: Registered protocol family 24
ip_tables: (C) 2000-2006 Netfilter Core Team
eth0: no IPv6 routers present

有段“b44: eth0: Flow control is off for TX and off for RX.”不晓得是不是这个原因，咋解决呢，望指点一二。
网卡：broadcom 4400

llj

开始怀疑/etc/network/interfaces文件有问题，

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# This is a list of hotpluggable network interfaces.
# They will be activated automatically by the hotplug subsystem.
mapping eth0
        script grep
        map eth0

# The primary network interface
#allow-hotplug eth0
auto eth0
iface eth0 inet static
        address 192.168.1.66
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 202.102.192.68

auto dsl-provider
iface dsl-provider inet ppp
provider dsl-provider

auto eth0

    iface eth0 inet manual

auto eth0

    iface eth0 inet manual

auto eth0

    iface eth0 inet manual

最后三段是同样的，不晓得是咋回事，和以前的sarge内容不同，多了一些东西。
补充：系统为etch。

kingway

ifconfig -a

这样当然能看到 eth0 啦，不管 eth0 是 down 还是 up。

你不加 -a 参数，状态为 down 的 eth0 你就看不到了吧。

llj

Post by kingway
这样当然能看到 eth0 啦，不管 eth0 是 down 还是 up。

你不加 -a 参数，状态为 down 的 eth0 你就看不到了吧。

是这个，不加-a参数就看不到eth0。
该咋解决呢？

sycn_shadow

1. auto dsl-provider
   
2. iface dsl-provider inet ppp
   
3. provider dsl-provider
   
4. 
   
5. auto eth0
   
6. 
   
7. iface eth0 inet manual
   
8. 
   
9. auto eth0
   
10. 
    
11. iface eth0 inet manual
    
12. 
    
13. auto eth0
    
14. 
    
15. iface eth0 inet manual

复制代码

改为

1. auto dsl-provider
   
2. iface dsl-provider inet ppp
   
3. pre-up /sbin/ifconfig eth0 up # line maintained by pppoeconf
   
4. provider dsl-provider
   
5. 
   
6. auto eth0

复制代码