[vserver] remove loopback

From: Evgeny Chukreev <evgeny.chukreev_at_gmail.com>
Date: Thu 21 Jan 2010 - 08:52:07 GMT
Message-ID: <984c04a41001210052h6ca92580m41b8d9076c609352@mail.gmail.com>

Helllo!

It seems that I have a problem that is opposite to what people usually
need here. I want to remove lo interface from my guest completely (or
at least unlink it from the host's lo). Is it possible?

Linux fw 2.6.32-trunk-vserver-amd64 #1 SMP Sun Jan 10 23:45:41 UTC
2010 x86_64 GNU/Linux (debian sid)

tap1 in /etc/vservers/serv1/interfaces/0/dev
192.168.100.2 in /etc/vservers/serv1/interfaces/0/ip
[nothing] in /etc/vservers/serv1/interfaces/0/name
28 in /etc/vservers/serv1/interfaces/0/prefix

0 is the only entry in the interfaces directory

root@fw:/# vserver serv1 enter
serv1:/# ifconfig -a
lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          UP LOOPBACK RUNNING MTU:16436 Metric:1
          RX packets:4100 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4100 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:295738 (288.8 KiB) TX bytes:295738 (288.8 KiB)

tap1 Link encap:Ethernet HWaddr f2:2e:81:ec:5b:48
          inet addr:192.168.100.2 Bcast:192.168.100.15 Mask:255.255.255.240
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:6 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.100.0 * 255.255.255.240 U 0 0 0 tap1
192.168.3.0 * 255.255.255.0 U 0 0 0 *
192.168.2.0 * 255.255.255.0 U 0 0 0 *
xx.yyy.zzzz.aaa * 255.255.255.0 U 0 0 0 *
default * 0.0.0.0 UG 0 0 0 *

tap1 is created on the host by using (in /etc/network/interfaces):
auto tap1
iface tap1 inet static
    pre-up tunctl -t tap1
    address 192.168.100.1
    netmask 255.255.255.240

What have I done wrong?

Evgeny
Received on Thu Jan 21 08:52:35 2010

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