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
Check Out this Related Man Page
LO(4) Kernel Interfaces Manual LO(4)NAME
lo - software loopback network interface
SYNOPSIS
/sys/conf/SYSTEM:
NLOOP 1 # loop-back pseudo-device
DESCRIPTION
The loop interface is a software loopback mechanism which may be used for performance analysis, software testing, and/or local communica-
tion. 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. The loopback interface should be the last interface con-
figured, as protocols may use the order of configuration as an indication of priority. The loopback should never be configured first
unless no hardware interfaces exist.
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 intro(4N), inet(4F), ns(4F)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.
3rd Berkeley Distribution August 1, 1987 LO(4)
Hello again. Neo, thanks for your last reply.
I have a new question. How can I re-configure the host name and IP address information attached to my NIC? I remember seeing a command posted here that would cause the system to re-boot and require the information to be entered but I do not see it... (6 Replies)
Hi. I have installed Solaris 8 and I am trying to configure the network settings. For some reason every time I reboot, my card loses its configuration. I can run ifconfig and the only IP address bound to my card (on either interface) is 127.0.0.1. I can change that to a valid IP address on my... (8 Replies)
Hi all,
I just install solaris10 at home to learn b4 taking the sun courses. Can't get the internet on my IntelPC. I'm using cable thru SMC ezcard 10/100. I ran ifconfig -a and it only shows lo0. No hme0.
Pls help. (9 Replies)
I know that I could use the
#ifconfig hme0 plumb
to activate the network interface.
However, how can I know the name of the interface e.g. hme0 before I could use the ifconfig to plumb it up?
I know there is a command (but I forgot it) to use in the Sparc version when you are in the... (7 Replies)
Hello,
I have just installed Solaris 9 x86 in a VMWare and the 1st problem I have is to enable the networking. I can only see the loopback interface and nothing else.
- I dont have any /etc/hostnames.xxx
- ifconfig -a shows only the loopback
- kstat -c net shows only the loopback ...
Any... (11 Replies)
Hello everyone.
Im using last redhat enterprise edition and in my working environment, i'm always reconfiguring both interfaces , eth0 and eth1, everytime i change any interface, (i use ifconfig to change ip, and after i execute "/etc/init.d/network restart") my "/etc/hosts" file... (9 Replies)
Guys
I am trying to get all physical plus logical interfaces on a host to pass them to a 'for' loop.
'ifconfig -a' gives me all interfaces like following...i need to cut last ':' from this list.What 'cut' syntax i need to use?
bash-2.05$
ifconfig -a|awk '{print $1}'|sort|uniq|egrep -v... (13 Replies)
I generally use
/usr/sbin/ifconfig -a | grep "inet" |egrep -v "inet6|0.0.0.0|192.168.100.2"|awk '{print $2}' to capture IPs on a host.
Now here is what i have:
bash-2.05$ /usr/sbin/ifconfig -a
lo0: flags=1000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4> mtu 8232 index 1
inet <IP>... (7 Replies)
Hi All,
Please let me know the command to restart the network interface and enable it on boot in AIX, similar to /etc/init.d/network restart in Redhat.
Thanks,
Sunil.K
please watch out to post in the right subforum! (9 Replies)
Hi
i have replace a NIC card on solaris 10 when i give the following command
ifconfig -a
it just show the lo0 (only loop back with inet 127.0.0.1)
when i give the following command to config the interface,
ifconfig elxl0 plumb
ifconfig: plumb: elxl0: no such interface
please help... (11 Replies)
This code works perfect when using a machine with only one interface online. (Excluding the loopback of course) But when I have other interface up for vmware or a vpn the output gets mixed up. I know I had this working when I was just reading ip's from files so I know it is not a problem with... (8 Replies)
hello,
i am trying to test connection to a 5.3 box. from an xp machine, telnet connects but shows only a blank screen. cursor moves as i type, but no response back.
have used telnet, putty and accuterm - all same result
verified that telnet services are active in xp
xp windoze firewall is... (10 Replies)
Can you use the same vswitch for multiple HPVMs?
The reason I ask is because I created a vswitch and assigned it to one hpvm, and I was able to get it on the network. Then I created a second hpvm and used the same vswitch, and I am able to ssh/sftp TO the second hpvm, but I am unable to ping... (8 Replies)
I have a .txt file with almost few hundreds interfaces address which need to be changed or mapped to the new interface naming convention. for e.g interface
xe-8/0/0 should be xe-16/0/0
xe-9/0/0 should be xe-17/0/0
it keeps going to xe-31/0/0 which should become xe-55/0/0.
i wanted to know... (12 Replies)
I have a Solaris 10 server with the following interfaces:
ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1 inet 127.0.0.1 netmask ff000000
e1000g0: flags=209040843<UP,BROADCAST,RUNNING,MULTICAST,DEPRECATED,IPv4,NOFAILOVER,CoS> mtu 1500 index... (8 Replies)