netstat mystery

[Alexander Dalloz]

Am Do, den 25.11.2004 schrieb akonstam at trinity.edu um 20:03:

> Previously on my systems when a computer is not connected to the
> Internet netstat -r returns:
> 
> Kernel IP routing table
> Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
> 169.254.0.0     *               255.255.0.0     U         0 0          0 eth0
> 127.0.0.0       *               255.0.0.0       U         0 0          0 lo

The lo route is absent since FC2 (kernel 2.6), because the kernel does
local routing itself.

> However, on my FC3 system currently the 127.0.0.0 line is absent. When
> I execute a ifconfig lo the output is:
> lo        Link encap:Local Loopback  
>           inet addr:127.0.0.1  Mask:255.0.0.0

Yes, the loopback device is there.

> so the lo interface seems to be up and ok. Can anyone explain why the
> 127.0.0.0       *               255.0.0.0       U         0 0 0 lo
> 
> is missing?

I am sure the answer could be found on the LKML (Linux kernel mailing
list).

> Aaron Konstam

Alexander


-- 
Alexander Dalloz | Enger, Germany | new address - new key: 0xB366A773
legal statement: http://www.uni-x.org/legal.html
Fedora GNU/Linux Core 2 (Tettnang) on Athlon kernel 2.6.9-1.6_FC2smp 
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