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From "Sangeetha Hariharan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CLOUDSTACK-1464) IPV6 - Multi nic - Ubuntu 1210 -When Vm is stopped and started/ rebooted , i get multiple global IPV6 addresses being allocated for one of the nics.
Date Fri, 01 Mar 2013 02:55:12 GMT
Sangeetha Hariharan created CLOUDSTACK-1464:
-----------------------------------------------

             Summary: IPV6 - Multi nic - Ubuntu 1210 -When Vm is stopped and started/ rebooted
, i get multiple global IPV6 addresses being allocated for one of the nics.
                 Key: CLOUDSTACK-1464
                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1464
             Project: CloudStack
          Issue Type: Bug
      Security Level: Public (Anyone can view this level - this is the default.)
         Environment: Latest build from networkrefactor branch
            Reporter: Sangeetha Hariharan


IPV6 - Multi nic - Ubuntu 1210 -When Vm is stopped and started/ rebooted , i get multiple
global IPV6 addresses being allocated for one of the nics


Create a dual stack network ,N1
Create a dual stack network, N2.
Deploy a VM - vm1 in N1 and N2.

After Vm is started , we get the IPV6 address only for 1 NIC.

To get the IPV6 address form the other NIC, we need to execute the dhclient command for this
nic.

I have the following configuration set in /etc/network/interfaces:

auto eth0
iface eth0 inet dhcp
iface eth0 inet6 dhcp
autoconf 0
accept_ra 1

auto eth1
iface eth1 inet dhcp
iface eth1 inet6 dhcp
autoconf 0
accept_ra 0


Now stop and start the Vms Or reboot Vms.

I see multiple global IPV6 addresses being allocated for one of the nics. 

sangeetha@ubuntu-123:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 06:9c:7e:00:00:8e
          inet addr:10.223.137.180  Bcast:10.223.137.191  Mask:255.255.255.192
          inet6 addr: fe80::49c:7eff:fe00:8e/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:70 errors:0 dropped:0 overruns:0 frame:0
          TX packets:87 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:9255 (9.2 KB)  TX bytes:14662 (14.6 KB)

eth1      Link encap:Ethernet  HWaddr 06:21:b4:00:00:4d
          inet addr:10.223.137.70  Bcast:10.223.137.127  Mask:255.255.255.192
          inet6 addr: fc00:3:1371:0:85f:9661:9764:f778/64 Scope:Global
          inet6 addr: fc00:3:1371:0:90ba:887f:83ea:cd9/64 Scope:Global
          inet6 addr: fc00:3:1371:0:421:b4ff:fe00:4d/64 Scope:Global
          inet6 addr: fe80::421:b4ff:fe00:4d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:26 errors:0 dropped:0 overruns:0 frame:0
          TX packets:34 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4379 (4.3 KB)  TX bytes:5611 (5.6 KB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:16 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1184 (1.1 KB)  TX bytes:1184 (1.1 KB)

sangeetha@ubuntu-123:~$ ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 06:9c:7e:00:00:8e brd ff:ff:ff:ff:ff:ff
    inet 10.223.137.180/26 brd 10.223.137.191 scope global eth0
    inet6 fe80::49c:7eff:fe00:8e/64 scope link
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 06:21:b4:00:00:4d brd ff:ff:ff:ff:ff:ff
    inet 10.223.137.70/26 brd 10.223.137.127 scope global eth1
    inet6 fc00:3:1371:0:85f:9661:9764:f778/64 scope global
       valid_lft forever preferred_lft forever
    inet6 fc00:3:1371:0:90ba:887f:83ea:cd9/64 scope global temporary dynamic
       valid_lft 604729sec preferred_lft 85729sec
    inet6 fc00:3:1371:0:421:b4ff:fe00:4d/64 scope global dynamic
       valid_lft 2591929sec preferred_lft 604729sec
    inet6 fe80::421:b4ff:fe00:4d/64 scope link
       valid_lft forever preferred_lft forever


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