[Netkit.users] Tap Interface in Netkit Lab

[Michele Di Mascolo]

Thanks, problem solved

2008/2/2, Massimo Rimondini <rimondin a dia.uniroma3.it>:
> Hi Michele,
>
> both answers apply.
>
> First, there is something improper in your configuration. In fact, you
> cannot choose a collision domain on your own for TAP interfaces. Therefore,
> the line router1[0]="A" is redundant, and indeed should be removed from your
> lab.conf. The reason why Netkit does not detect the redundancy is that lines
> in lab.conf that specify interfaces with an explicit name ([eth0]) are
> simply considered as vstart command line arguments, and therefore are not
> matched against interfaces specified with the standard syntax ([0]).
>
> Second, your configuration reveals a bug which, fortunately, does not affect
> your specific setting. At present, tap interfaces with a numbering higher
> than 0 are not properly set up. In general, this should not be critical,
> however I attach a patch that fixes the problem. To apply it, enter
> $NETKIT_HOME and run 'patch -p1 < tap-not-first.diff'.
>
> P.S. With the latest version of Netkit, TAP interfaces too can be configured
> using the standard syntax for interface specification in lab.conf.
> Therefore, I suggest to replace
> router1[eth0]=tap,10.0.0.1,10.0.0.2
> with
> router1[0]=tap,10.0.0.1,10.0.0.2
>
> Regards,
> Massimo.
>
>
> > -----Original Message-----
> > From: netkit.users-bounces a list.dia.uniroma3.it
> > [mailto:netkit.users-bounces a list.dia.uniroma3.it] On Behalf
> > Of Michele Di Mascolo
> > Sent: Saturday, February 02, 2008 12:31 PM
> > To: netkit.users a list.dia.uniroma3.it
> > Subject: [Netkit.users] Tap Interface in Netkit Lab
> >
> > I've some trouble to start a Netkit Lab with vm_s that have tap
> > interface configured at the start up to be capable to internet
> > navigate.
> >
> > I configure in lab.conf file the interested vm as follow:
> >
> > router1[0]="A"
> > router1[1]="B"
> > router1[eth0]=tap,10.0.0.1,10.0.0.2
> >
> > When the router1 vm start, only the normal network interface come up
> > with the address specified in router1.startup file. The tap interface
> > instead doesn't go up and I can't navigate in internet with this vm.
> >
> > I want to know if this is a my bad configuration or if there is a bug
> > in the lab start up when is present a vm with tap interface
> > pre-configured.
> >
> > Thanks
> >
> > Michele Di Mascolo
> > Specialistic Graduating in Telecommunications Engineering
> > @ Università degli Studi di Roma "Tor Vergata"
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> >
>
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