From: xpto09 <xp...@gm...> - 2006-04-21 12:45:38
|
Multicast is useful to let multiple UML instances to talk to each other. So I tried it. I downloaded the files from Jeff's site (kernel 2.6.16 and Fedora root_fs)= . I downloaded the uml-utilities too. First: # ./linux rw ubd0=3Dmachine1.cow,root_fs eth0=3Dmcast [root@localhost ~]# ifconfig eth0 192.168.0.253 up [root@localhost ~]# ifconfig eth0 eth0 Link encap:Ethernet HWaddr FE:FD:C0:A8:00:FD inet addr:192.168.0.253 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:5 Second: # ./linux rw ubd0=3Dmachine2.cow,root_fs eth0=3Dmcast [root@localhost ~]# ifconfig eth0 192.168.0.254 up [root@localhost ~]# ifconfig eth0 eth0 Link encap:Ethernet HWaddr FE:FD:C0:A8:00:FE inet addr:192.168.0.254 Bcast:192.168.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:12 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:504 (504.0 b) Interrupt:5 I tried do ping the first uml: [root@localhost ~]# ping 192.168.0.253 PING 192.168.0.253 (192.168.0.253) 56(84) bytes of data. After a while, ctrl c: --- 192.168.0.253 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2035ms Why I don't get ping it? |