Re: Problems configuring /etc/network/interfaces
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don't forget to put your isp's dns servers' IPs in /etc/resolv.conf
greetz,
Dani,
dns support.
CB> Hi,
CB> I'm fairly new to Linux and just switched from SuSE to Debian
CB> 2.2.19pre17 a few days ago. I have a Dell Inspiron 7000 notebook. I've
CB> tried very hard to solve this problem on my own, but the solution
CB> continues to escape me.
CB> Right now, my /etc/network/interfaces file includes the following lines
CB> (excluding comments):
CB> auto lo
CB> iface lo inet loopback
CB> My understanding is that the "auto lo" line is supposed to activate the
CB> loopback interface at boot time. But evidently it doesn't. After I
CB> boot and log in as root, if I ping the localhost at 127.0.0.1, I get the
CB> error message:
CB> neighbor table overflow
CB> At this point, the routing table (route -n command) doesn't list the
CB> loopback interface, and I must manually activate and add it with the
CB> lines:
CB> ifconfig lo 127.0.0.1
CB> route add 127.0.0.1 lo
CB> After doing this, I no longer receive the overflow error and can ping
CB> the localhost.
CB> Strangely (to me), if I comment out the "auto lo" line in
CB> /etc/network/interfaces and reboot, I can then successfully ping the
CB> loopback address, indicating that the interface has been automatically
CB> activated. (So "auto lo" is evidently shutting it down. I wish I could
CB> find more thorough instructions for configuring
CB> /etc/network/interfaces.) Although the interface has been activated
CB> automatically, I still have to add it to the routing table using the
CB> above route command. But, of course, I don't want to have to add the
CB> route manually every time I reboot.
CB> All of the above was learned while I was trying to figure out my
CB> original problem, which is this:
CB> After successfully connecting to my ISP via serial modem (and after
CB> manually adding the loopback interface), the routing table is as
CB> follows:
CB> Destination Gateway Genmask Flags Metric Ref Use Iface
CB> 286.115.220.139 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
CB> 127.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 lo
CB> 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
CB> 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
CB> I can ping 286.115.220.139 as well as my machine's local network IP
CB> address at 192.168.1.1, but I can't ping my ISP's DNS servers or
CB> anywhere else on the internet.
CB> So, for several days I've basically been trying to figure out how to
CB> connect to the internet. I only have a bare minimum installation and
CB> desperately need to add more functionality via apt-get downloads. I
CB> tried to follow the installation instructions exactly, but now I'm stuck
CB> and feeling helpless.
CB> Sincere thanks for any suggestions,
CB> Charles
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