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From sebastien goasguen <run...@gmail.com>
Subject Re: DevCloud host-only interface
Date Tue, 17 Jul 2012 20:26:28 GMT
On Tue, Jul 17, 2012 at 4:23 PM, Edison Su <Edison.su@citrix.com> wrote:
>
>
>> -----Original Message-----
>> From: sebastien goasguen [mailto:runseb@gmail.com]
>> Sent: Tuesday, July 17, 2012 12:34 PM
>> To: cloudstack-users@incubator.apache.org
>> Subject: Re: DevCloud host-only interface
>>
>> On Tue, Jul 17, 2012 at 1:57 PM, Edison Su <Edison.su@citrix.com> wrote:
>> >
>> >
>> >> -----Original Message-----
>> >> From: sebastien goasguen [mailto:runseb@gmail.com]
>> >> Sent: Tuesday, July 17, 2012 5:41 AM
>> >> To: cloudstack-users@incubator.apache.org
>> >> Subject: DevCloud host-only interface
>> >>
>> >> Hi,
>> >>
>> >> I am trying to add a host-only interface to the DevCloud VM, so that
>> I
>> >> can have other VMs (not nested ones) on the same internal network.
>> >> I have a centOS 6.2 VM setup with host-only and it works as expected.
>> >>
>> >> Somehow the eth1 that I added to DevCloud in /etc/network/interfaces
>> >> receives all the arp packets but does not reply to any.
>> >> To define the interface I added:
>> >> auth eth1
>> >> iface eth1 inet dhcp
>> >>
>> >> eth1 comes up and gets an IP from the dhcp server of vbox. The IP
>> >> actually responds briefly to ping during boot time but then it stops
>> >> answering.
>> >>
>> >> If I ping the IP from the host, I can see the arp request on the
>> guest
>> >> interface, there are just no replies going out.
>> >
>> > What's the routing table in Ubuntu guest?
>> >
>>
>> root@devcloud:~# route
>> Kernel IP routing table
>> Destination     Gateway         Genmask         Flags Metric Ref    Use
>> Iface
>> default         10.0.2.2        0.0.0.0         UG    100    0        0
>> xenbr0
>> 10.0.2.0        *               255.255.255.0   U     0      0        0
>> xenbr0
>> 10.0.2.0        *               255.255.255.0   U     0      0        0
>> eth0
>> link-local      *               255.255.0.0     U     0      0        0
>> xapi0
>> 192.168.56.0    *               255.255.255.0   U     0      0        0
>> eth1
>>
>> root@devcloud:~# ifconfig eth1
>> eth1      Link encap:Ethernet  HWaddr 08:00:27:df:00:00
>>           inet addr:192.168.56.110  Bcast:192.168.56.255
>> Mask:255.255.255.0
>>           inet6 addr: fe80::a00:27ff:fedf:0/64 Scope:Link
>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>           RX packets:32 errors:0 dropped:0 overruns:0 frame:0
>>           TX packets:22 errors:0 dropped:0 overruns:0 carrier:0
>>           collisions:0 txqueuelen:1000
>>           RX bytes:5408 (5.4 KB)  TX bytes:2172 (2.1 KB)
>>
>> I changed the vbox dhcp server to lease addresses at 192.68.56.110
>
> So you have two nics in devCloud, one in NAT mode, one in Host mode?
> How about just using one nic, change the NAT mode to host mode?
>>

Yes I have two nics.
I did not want to change your NATed nic to avoid messing up your setup.


-- 
---
Sebastien Goasguen
Open Source Cloud Evangelist, Cloudstack
http://sites.google.com/site/runseb/

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