On Monday 04 September 2006 19:03, [EMAIL PROTECTED] wrote: > "Nic James Ferrier" <[EMAIL PROTECTED]> wrote: > > [EMAIL PROTECTED] writes: > > > I call it with "eth2=tuntap,ext-test". I got the impression that it > > > is enough to do that when I'm using preconfigured interface. At > > > least there is example of that in Virtual Networking Tutorial. And > > > besides ip-address would be little hard to set as I'm connecting > > > guests to internet through a bridge. Also I would like to mention > > > that tuntap interface works without a problem when using static ip > > > address. > > > > Yes. The problem is the allocated mac addresses. > > > > I can't remember what the daemon does precisely but I don't remember > > it doing auto-mac address allocation. > > In the host side of tap device the mac address seems to be random but it > seems like in guest side the mac address is derived from first given > ip-address and when using dhcp it's always 0.0.0.0 which causes it to be > fe:fd:00:00:00:00. Yes, that's exactly what happens. We know this, and maybe we'll switch to random MACs (derived ones work better when there is a static IP however).
> The problem is that I can't seem to be able to change > the mac address to different when using dhcp. > > > Anyway, try: > > > > guestkernel ... eth0=tuntap,,fe:fd:00:00:00:01, > > > > because as you point out, you don't need the address at the end > > because you're using DHCP. > > Thanks, that helped me. Interesting thing is that after giving also the mac > address I could alse change it in guest. That's correct - you can change it anywhere (ever on your host). > Could there be a bug related to > mac address? Maybe you refer to "pre-up ifconfig eth2 hw address ..." ? Post the exact messages and we'll see. -- Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!". Paolo Giarrusso, aka Blaisorblade http://www.user-mode-linux.org/~blaisorblade Chiacchiera con i tuoi amici in tempo reale! http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
