[ECOS] ping problem

[Madhava Reddy S]

Hi Andrew,

 I am running the server in the target. when i check in the ethereal two ARP 
packets are sent from the target and both of them are Gratuitous ARP. I 
browsed in the net for Gratuitous ARP. In the following link 
http://www.geocities.com/SiliconValley/Vista/8672/network/arp.html?20061#A28

 He says host sends ARP request to resolve its own IP address.

 He also says in a properly configured network there will not be reply for 
gratuitous ARP request.
 I am not getting reply. Is my network configured properly.

 When I run client in Linux PC client sends six ARP packets and stops.

 TCP packets are not sent.

 I am using the same IP in the Redboot. I tried with different IP in Redboot 
also. I am getting the same output.

 Not understanding where the problem is.


Regards,
Madhava S



----- Original Message ----- 
From: "Andrew Lunn" <andrew@lunn.ch>
To: "Madhava Reddy S" <madhava.s@globaledgesoft.com>
Cc: "Andrew Lunn" <andrew@lunn.ch>; <ecos-discuss@sourceware.org>
Sent: Tuesday, January 31, 2006 6:50 PM
Subject: Re: [ECOS] ping problem


> On Tue, Jan 31, 2006 at 06:23:20PM +0530, Madhava Reddy S wrote:
>> Hi Andrew,
>>
>> Sorry for the second mail. Our mail server blocks mails for groups, so I
>> have sent one more and asked sysadmin to forward it.
>>
>> In the "Basic network framework" of configuration tool
>> INET Support
>> TFTP(RFC - 1350) Support
>> Use full DHCP instead of BOOTP
>> the above three are checked
>> In "initialization option for 'eth0' "
>> I have checked "address Setups for eth0" and filled in following values:
>>    IP Address for 'eth0'                        192.168.0.10
>>    Network mask address for 'eth0'       255.255.255.0
>>    Broadcast address for 'eth0'                0.0.0.0
>>    gateway/router IP address for 'eth0'    0.0.0.0
>>    Server IP address for 'eth0'            192.168.0.100
>>
>> init_all_network_interfaces() returns the following
>> [cyg_net_init] Done
>> Start client server test    /* start of my application */
>> BOOTP[eth0] op : REPLY
>>    htype      : ethernet
>>    hlen        : 6
>>    hops       : 0
>>    xid          : 0x0
>>    secs        : 0
>>    flags        : 0x0
>>    hw_addr  : 00:50:ba:d8:fc:fc
>>    client IP    : 192.168.0.10
>>    my IP       :  192.168.0.10
>>    server IP   : 192.168.0.100
>>    gateway IP: 0.0.0.0
>>    options:
>>        subnet mask : 255.255.255.0
>>        IP broadcast : 0.0.0.0
>>        gateway        : 0.0.0.0
>
> This all looks OK.
>
>> Initialization of network interfaces done    /* Application specific */
>> socket created
>> bind successful
>> Trying to accept...
>>
>> If  I run client from Linux PC( IP is 192.168.0.100)  it says
>> connect: No route to Host
>> Broken Pipe.
>
> What is happening on the network? Does ARP work? Is the TCP connect
> requested rejected with a RST or is there no communication at all?
>
> What IP address is RedBoot using? The something different or the same?
>
>        Andrew
>
> -- 
> Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
> and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
> 

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