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Old 02-20-2008, 06:07 AM   #1
zingerb
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Registered: Feb 2008
Posts: 2

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problem to add virtual interface on fedora 8


Hi!

I have looked for this in very many forums but I didn't find something.

I have a problem to add virtual interface on fedora 8.
I've done installation of fedora 8 as server.
I have ip from dhcp server and after NAT.
So my ip address is 192.168.0.22.
Subnet mask 255.255.255.0 and default gateway is 192.168.0.254.
I need to create two virtual interfaces eth0:1 and eth0:2.
I have done the following things:

ifconfig eth0:1 192.168.0.101 netmask 255.255.255.0 up
ifconfig eth0:2 192.168.0.102 netmask 255.255.255.0 up

After " ifconfig -a "

I saw that I have new interfaces but when I'll try to add them to the kernel IP routing table I have some strange problem.

route add -net 192.168.0.0 netmask 255.255.255.0

Error : SIOCADDRT invalid argument

So I'd like to see after "route"
that I have in column Iface eth0:1 and etho:2
now I see only eth0.

Thank you very much for help.
 
Old 02-20-2008, 06:34 AM   #2
Simon Bridge
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Registered: Oct 2003
Location: Waiheke NZ
Distribution: Ubuntu
Posts: 9,211

Rep: Reputation: 198Reputation: 198
You have successfully added the virtual interfaces, you are having trouble adding the network to the routing table.

http://handsonhowto.com/virt.html
Possibly missing out some of these steps caused some confusion.


route command error messages[pdf]

Quote:
Error : SIOCADDRT invalid argument
SIOCADDRT is an error message ADDing a RouTe.
"invalid argument" normally comes from missing something out. The line:
Quote:
route add -net 192.168.0.0 netmask 255.255.255.0
looks fine though. Is there anything else to the error message?
 
  


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