06-07-2011
I never have DHCP assigned IPs. My ISP uses DHCP to assign my router a real IP, but inside the premises I am lord almighty of the network.
You're right about loopback though. I didn't notice that before. I'll have to check into that.
---------- Post updated at 07:26 PM ---------- Previous update was at 06:57 PM ----------
Quote:
Originally Posted by
DGPickett
No loopback, either! Weird!
I think I remember loop addresses previously being included in the output of
netstat -nr, but I just checked, and it's not included in any of the 4 Linux boxes I have running right now (2 Fedora, 1 Ubuntu and 1 Arch). Yet I can ping and ssh to localhost on each.
I must not have been paying attention when it became implicit on Linux.
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LO(4) BSD Kernel Interfaces Manual LO(4)
NAME
lo -- software loopback network interface
SYNOPSIS
pseudo-device loop
DESCRIPTION
The loop interface is a software loopback mechanism which may be used for performance analysis, software testing, and/or local communication.
As with other network interfaces, the loopback interface must have network addresses assigned for each address family with which it is to be
used. These addresses may be set or changed with the SIOCSIFADDR ioctl(2). The loopback interface should be the last interface configured,
as protocols may use the order of configuration as an indication of priority. The loopback should never be configured first unless no hard-
ware interfaces exist.
The loopback interface lo0 is created at boottime, it always exists and cannot be destroyed with ifconfig(8). Additional loopback interfaces
can be created by using the ifconfig(8) create command.
DIAGNOSTICS
lo%d: can't handle af%d . The interface was handed a message with addresses formatted in an unsuitable address family; the packet was
dropped.
SEE ALSO
inet(4), intro(4), ifconfig(8)
HISTORY
The lo device appeared in 4.2BSD.
BUGS
Previous versions of the system enabled the loopback interface automatically, using a nonstandard Internet address (127.1). Use of that
address is now discouraged; a reserved host address for the local network should be used instead.
BSD
September 3, 2006 BSD