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Re: interface eth0 not comming up after network restart



On Fri, 8 Jun 2007 12:55:32 +0530
"Sumith augustine" <sumith.ml@gmail.com> wrote:

> hi all,
> 
> I ve installed etch in one of my sys,  and  am facing some issues with its
> networking.
> 
> After "/etc/init.d/networking restart" the interface eth0 won't come up and
> won't be visible through the "ifconfig" command
> and if i try ping to some sys it says "Network is unreachable"
> 
> ==============================================================
> tfbsrv:/home/sumith# /etc/init.d/networking restart
> Reconfiguring network interfaces...done.
> tfbsrv:/home/sumith# ping 192.168.0.1
> connect: Network is unreachable
> tfbsrv:/home/sumith#
> ===============================================================
> 
> At this time ifconfig  will show only Loopback and no eth0
> "netstat -rn" gives nothing
> 
> ===============================================================
> tfbsrv:/home/sumith# ifconfig
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           inet6 addr: ::1/128 Scope:Host
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:697 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:697 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:186974 (182.5 KiB)  TX bytes:186974 (182.5 KiB)
> 
> tfbsrv:/home/sumith# netstat -rn
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags   MSS Window  irtt
> Iface
> tfbsrv:/home/sumith#
> ================================================================
> 
> If i reboot the sys or issue the command "ifup eth0" the interface eth0 will
> come up and now i can see it through "ifconfig"
> also netstat -rn gives output
> 
> =================================================================
> tfbsrv:/home/sumith# ifup eth0
> tfbsrv:/home/sumith# ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:80:48:38:F5:47
>           inet addr:192.168.0.72  Bcast:192.168.0.255  Mask:255.255.255.0
>           inet6 addr: fe80::280:48ff:fe38:f547/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:3648 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:2424 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:2732146 (2.6 MiB)  TX bytes:463928 (453.0 KiB)
>           Interrupt:201 Base address:0xd800
> 
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           inet6 addr: ::1/128 Scope:Host
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:733 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:733 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:197918 (193.2 KiB)  TX bytes:197918 (193.2 KiB)
> 
> tfbsrv:/home/sumith# netstat -rn
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags   MSS Window  irtt
> Iface
> 192.168.0.0     0.0.0.0         255.255.255.0   U         0 0          0
> eth0
> 0.0.0.0         192.168.0.1     0.0.0.0         UG        0 0          0
> eth0
> tfbsrv:/home/sumith#
> ===========================================================================
> 
> Can any one tell me why this is due to ?
> is this a bug in etch ?
> how can i fix it ?
> 
> note:
> i ve installed testing packages of BackupPc and rsync
> 
> thanks
> Regards
> Sumith

The interface will only be brought up if the 'interfaces' file has
something like 'auto eth0'. 


Celejar
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