Dual NIC for Linux Image, public IP not pinging

[Dan Huynh <da...@gmail.com>]

Hi,
For VCL we need 2 NICs, 1 for private and 1 for public.
*I created RHEL 6 image, If I use the default setting : *
DEVICE=eth0 /eth1
BOOTPROTO=dhcp
ONBOOT=yes

then I wont be able to ping public address or to connect to the internet.

I changed the default route by* adding DEFROUTE=yes/no* accordingly to the
config files of eth1 and eth0. Now I get both NICs working fine.

But after image captured, VCL changed the config and removed
 DEFROUTE=yes/no.

Because of this, every time I make the reservation, I can never connect to
the machine via public IP address.

*What should I do to have both private and public NIC working? Should I do
hard-coding the Linux.pm file, so that DEFROUTE will be added to the
network config files?*

Thanks
-- 
*Dan Huynh*
*
Cary, NC 27513*

Re: Dual NIC for Linux Image, public IP not pinging

[Dan Huynh <da...@gmail.com>]

Hi Aaron,

In my DHCP config of the private network, I did define the option routers.
That caused the problem.
I just removed that line and now I can connect to the machines using public
IP as well as internet connection.
Everything works perfectly.
Thank you for pointing that out.

-Dan






On Tue, May 28, 2013 at 10:32 AM, Aaron Peeler <aa...@ncsu.edu>wrote:

> Hi Dan,
>
> In your dhcp server config. Do you have the 'option routers' defined
> correctly for your public subnet?
>
> Aaron
>
>
>
>
>
> On Thu, May 23, 2013 at 5:45 PM, Dan Huynh <da...@gmail.com>wrote:
>
>> Hi,
>> For VCL we need 2 NICs, 1 for private and 1 for public.
>> *I created RHEL 6 image, If I use the default setting : *
>> DEVICE=eth0 /eth1
>> BOOTPROTO=dhcp
>> ONBOOT=yes
>>
>> then I wont be able to ping public address or to connect to the internet.
>>
>> I changed the default route by* adding DEFROUTE=yes/no* accordingly to
>> the config files of eth1 and eth0. Now I get both NICs working fine.
>>
>> But after image captured, VCL changed the config and removed
>>  DEFROUTE=yes/no.
>>
>> Because of this, every time I make the reservation, I can never connect
>> to the machine via public IP address.
>>
>> *What should I do to have both private and public NIC working? Should I
>> do hard-coding the Linux.pm file, so that DEFROUTE will be added to the
>> network config files?*
>>
>> Thanks
>> --
>> *Dan Huynh*
>> *
>> Cary, NC 27513*
>>
>
>
>
> --
> Aaron Peeler
> Program Manager
> Virtual Computing Lab
> NC State University
>
> All electronic mail messages in connection with State business which are
> sent to or received by this account are subject to the NC Public Records
> Law and may be disclosed to third parties.
>



-- 
*Dan Huynh*
*
Cary, NC 27513*

Re: Dual NIC for Linux Image, public IP not pinging

[Aaron Peeler <aa...@ncsu.edu>]

Hi Dan,

In your dhcp server config. Do you have the 'option routers' defined
correctly for your public subnet?

Aaron





On Thu, May 23, 2013 at 5:45 PM, Dan Huynh <da...@gmail.com> wrote:

> Hi,
> For VCL we need 2 NICs, 1 for private and 1 for public.
> *I created RHEL 6 image, If I use the default setting : *
> DEVICE=eth0 /eth1
> BOOTPROTO=dhcp
> ONBOOT=yes
>
> then I wont be able to ping public address or to connect to the internet.
>
> I changed the default route by* adding DEFROUTE=yes/no* accordingly to
> the config files of eth1 and eth0. Now I get both NICs working fine.
>
> But after image captured, VCL changed the config and removed
>  DEFROUTE=yes/no.
>
> Because of this, every time I make the reservation, I can never connect to
> the machine via public IP address.
>
> *What should I do to have both private and public NIC working? Should I
> do hard-coding the Linux.pm file, so that DEFROUTE will be added to the
> network config files?*
>
> Thanks
> --
> *Dan Huynh*
> *
> Cary, NC 27513*
>



-- 
Aaron Peeler
Program Manager
Virtual Computing Lab
NC State University

All electronic mail messages in connection with State business which are
sent to or received by this account are subject to the NC Public Records
Law and may be disclosed to third parties.