On 11/28/06, Jeff Dike <[EMAIL PROTECTED]> wrote: > > Works here, so can you describe exactly what you did? > Ok. So, let's start from the beginning.
1. I configured Multicast networking support into the kernel (version 2.6.18). Full kernel configuration is available at http://www.tml.tkk.fi/~sjkorpi/uml/mcast-test.config 2. I compiled the kernel and copied it so that in the end I had two identical kernels, linux and linux2 3. I started both UML instances, this time with just one network interface (the mcast interface) each: ./linux args ubd0=cow1,/home/samuel/src/uml/uml-fedora/FedoraCore5-AMD64-root_fs eth0=mcast mem=256M umid=um1 con1=tty:/dev/tty5 ./linux2 ubd0=cow2,/home/samuel/src/uml/uml-fedora/FedoraCore5-AMD64-root_fs eth0=mcast mem=256M umid=um2 con1=tty:/dev/tty6 4. Basic configuration is based on /etc/rc.local: # setting up networking ifconfig eth0 192.168.0.2 route add -net 0.0.0.0 gw 192.168.0.1 # mounting host filesystem mount none /mnt/host -t hostfs # enabling packet forwarding echo 1 > /proc/sys/net/ipv4/ip_forward # disabling rp filtering echo 0 > /proc/sys/net/ipv4/conf/default/rp_filter echo 0 > /proc/sys/net/ipv4/conf/all/rp_filter echo 0 > /proc/sys/net/ipv4/conf/eth0/rp_filter echo 0 > /proc/sys/net/ipv4/conf/eth1/rp_filter # enabling martian source logging echo 1 > /proc/sys/net/ipv4/conf/default/log_martians echo 1 > /proc/sys/net/ipv4/conf/all/log_martians echo 1 > /proc/sys/net/ipv4/conf/eth0/log_martians echo 1 > /proc/sys/net/ipv4/conf/eth1/log_martians Only the IP address given for eth0 differs between the instances. 5. I brought up the local loop interface: ifconfig lo up (the only thing this changed is that now I get "Destination Host Unreachable" when trying to ping the other instance). dmesg from both instances: UM1: http://www.tml.tkk.fi/~sjkorpi/uml/dmesg-um1.log UM1: http://www.tml.tkk.fi/~sjkorpi/uml/dmesg-um2.log I hope this will give a clue of what the problem is. /Samuel ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
