Re: disabling ethernet loopback device completely
Bob, here's the output of ifconfig and netstat:
-------------------------
eth0 Link encap:Ethernet HWaddr
00:0C:F1:84:BF:60
inet addr:192.42.172.158
Bcast:192.42.172.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500
Metric:1
RX packets:9492564 errors:0 dropped:0
overruns:0 frame:0
TX packets:13046 errors:0 dropped:0
overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:2690837630 (2.5 GiB) TX
bytes:4435753 (4.2 MiB)
Base address:0xac00 Memory:ff5e0000-ff600000
eth1 Link encap:Ethernet HWaddr
00:04:23:A6:7E:B6
inet addr:192.168.100.254
Bcast:192.168.100.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:98 errors:0 dropped:0 overruns:0
frame:0
TX packets:101 errors:0 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:100
RX bytes:28330 (27.6 KiB) TX bytes:6464
(6.3 KiB)
Base address:0xb800 Memory:ff8c0000-ff8e0000
eth2 Link encap:Ethernet HWaddr
00:04:23:A6:7E:B7
inet addr:20.1.1.1 Bcast:20.255.255.255
Mask:255.0.0.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:39 errors:0 dropped:0 overruns:0
frame:0
TX packets:0 errors:0 dropped:0 overruns:0
carrier:0
collisions:0 txqueuelen:100
RX bytes:11272 (11.0 KiB) TX bytes:0 (0.0
b)
Base address:0xbc00 Memory:ff8e0000-ff900000
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:26202 errors:0 dropped:0
overruns:0 frame:0
TX packets:26202 errors:0 dropped:0
overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:18830048 (17.9 MiB) TX
bytes:18830048 (17.9 MiB)
------------------
Kernel IP routing table
Destination Gateway Genmask Flags
MSS Window irtt Iface
192.168.100.0 0.0.0.0 255.255.255.0 U
0 0 0 eth1
192.42.172.0 0.0.0.0 255.255.255.0 U
0 0 0 eth0
20.0.0.0 0.0.0.0 255.0.0.0 U
0 0 0 eth2
0.0.0.0 192.42.172.200 0.0.0.0 UG
0 0 0 eth0
---------------
Robert, let me try and explain the real reason I'm
trying to do this.
We're shipping computer system with debian
pre-installed on it. We always want 'eth0' to be the
motherboard's NIC. And "eth1" and "eth2" to on be the
Dual NIC pci card. Well, this isn't always the case,
as you may or may not know, because which alias gets
assigned to which MAC addr depends on how the kernel
modules come up. (This the same problem where people
complain that eth0/1 got swapped when they upgraded to
kernel 2.6.x). So the "nameif" and "ifrename"
utilities come into play to solve my problem.
Now, I want to generate the /etc/mactab via a
calibration procedure using a physical RJ45 loopback
plug. And hence I'm writing a little test script that
will not only end up testing my ethernet ports, but
also produce the alias->mac mapping for me.
Hope this makes sense.
--- Bob Alexander <bob@ngi.it> wrote:
> salman h wrote:
> > Hi,
> >
> > I want to disable the loopback interface "lo" on
> my
> > machine completely so that when I try to send data
> > packets to the IP address that is configured for
> > "eth0" on my local machine, the packets are
> actually
> > put on the physical network.
> >
>
> Sorry for the confusion.
>
> Please post output of:
>
> ifconfig
> netstat -nr
>
> HTH,
> Bob
>
>
> --
> To UNSUBSCRIBE, email to
> debian-user-REQUEST@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact
> listmaster@lists.debian.org
>
>
__________________________________
Do you Yahoo!?
Read only the mail you want - Yahoo! Mail SpamGuard.
http://promotions.yahoo.com/new_mail
Reply to: