Re: [lartc] Virtual Interface

[Roger Singh]

Mike,

Thanks. I will try it.. 
I have not explained the puspose for this doing this - just to give you an idea I want to create around 200 virtual interfaces and send traffice through all the interfaces simulating traffic comming from different networks. Do youthink this approach will scale to that level?


Roger
On 2/3/06, list user [EMAIL PROTECTED] wrote:
Hi Roger,[big snip: lost o.p.]There are a couple of different approaches you might try.One is to use
uml-utilities' tunctl to create an ethernet tap. Another is to use thedummy interface.With either method you can bridge, route, configure asyou would a physical device using ifconfig and/or ip.The following methods work for me.I use Fedora Core 4.Its network
setup methods are in /etc/sysconfig/network-scripts.cd /etc/sysconfig/network-scriptsln -s ifup-eth ifup-tapln -s ifdown-eth ifdown-tapecho 'ip link show tap0 | grep tap0 21 /dev/null ||tunctl -t tap0
DEVICE=tap0TYPE=ethernet>BOOTPROTO=staticMACADDR=5a:5a:5a:5a:5a:5aNETWORK=192.168.0.0IPADDR=192.168.0.1BROADCAST=
192.168.0.255NETMASK=255.255.255.0'  ifcfg-tap0ifup tap0ln -s ifup-eth0 ifup-dummyln -s ifdown-eth ifdown-dummyecho 'ip link show dummy0 | grep dummy0 21 /dev/null || {
ip link set dummy0 upip link set dummy0 arp onip link set dummy0 multicast on}DEVICE=dummy0TYPE=ethernet>BOOTPROTO=staticMACADDR=a4:a5:a5:a5:a5:a5NETWORK=
192.168.0.0IPADDR=192.168.0.2BROADCAST=192.168.0.255NETMASK=255.255.255.0'  ifcfg-dummy0ifup dummy0
If all went well there should now be two new virtual ethernet devices,tap0 and dummy0.Hope this information is useful to you,Mike Wright :m)___
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Re: [LARTC] Virtual Interface

[Roger Singh]

Thanks Ryan. 

VLAN will not for for me, I will check ebtables.

BTW, I was thinking more on lines of MAC-VLAN. I could not find much information about it. I will really appriciate if someone can provide me some direction one this.

Thanks
R
On 2/2/06, Ryan Castellucci [EMAIL PROTECTED] wrote:
You can do this with vlans, but this may not be a suitable solution,as if you want to make them work normaly, you will need to tie this to
a vlan capable switch. I don't belive that alias interfaces supportsetting seperate mac addresses, however, you might want to look atebtables, it has some mac address rewriting functionality which maymeet your needs.
On 2/2/06, Roger Singh [EMAIL PROTECTED] wrote: Hi Guys, I want to create multiple virtual interfaces on a system running linux 2.6.
 The main requirment being, to assign unique MAC address fo each of the virtual interfaces. I need to know, if this is possible and will really appriciate if someone can provide me pointer in this direction.
 Thanks a lot. R. Singh ___ LARTC mailing list LARTC@mailman.ds9a.nl 
http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc--Ryan Castellucci http://ryanc.org/--Ryan Castellucci 
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[LARTC] Virtual Interface

[Roger Singh]

Hi Guys,

I want to create multiple virtual interfaces on a system running linux 2.6. The main requirment being, to assign unique MAC address fo each of the virtual interfaces. 

I need to know, if this is possible and will really appriciate if someone can provide me pointer in this direction.

Thanks a lot.

R. Singh
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