[ECOS] Re: Help reqd for TCP/IP stack on ecos

["sujith k" <sujith at c4 dot com>]

Hi,
   Thanks for the reply.

My problem is, I can not put bridge code inside my box. becos, bridging functionality is done by the ASIC in my box. I have 24 ethernet interfaces and need to have only one IP interface. That means, all the 24 ports should have the same IP address in my case. 
Is there any other way to solve this problem(without using the bridge code)?

thanks in advance
-sujith 
 

On Tue, 30 Oct 2001 13:32:56 +0100 Andrew Lunn <andrew.lunn@ascom.ch> wrote:
>On Tue, Oct 30, 2001 at 11:28:01AM -0000, sujith k wrote:
>> Hi ,
>>          I have a query on TCP/IP stack initialization.
>> 
>> Say , that I have 2 physical interfaces eth0 and eth1.
>> But, I have only one IP address for the box. This is nothing but, only one IP interface and 2 ethernet interfaces.
>> 
>> I am using the function init_net to init eth0 and eth1.
>> i.e. init_net(eth0, bootp);
>>      init_net(eth1, bootp);
>
>> Here , the bootp record is updated with the IP address, say 
>> 192.168.1.150. I am ignoring the error message from ioctl() for 
>> setting the IP address for eth1 interface. I am not checking the
>> return value of ioctl(). So, my init_net for eth0 and init_net for
>> eth1 is a success.
>
>Its returning an error for a reason. You cannot do this! Each
>interface to the IP stack has to have a different IP address. Maybe
>what you want is that the node acts as an ethernet bridge with two
>ethernet ports? You then have one interface to the IP stack and so can
>have one IP address. Just be careful of loops.
>
>         Andrew
> 
>

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