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Re: [lwip-users] Testing the internet app based on lwIP-1.3.0 and Mini-O


From: Kieran Mansley
Subject: Re: [lwip-users] Testing the internet app based on lwIP-1.3.0 and Mini-OS
Date: Mon, 18 Oct 2010 12:33:45 +0100

On Mon, 2010-10-18 at 19:00 +0800, Bei Guan wrote:
> But if I set 192.168.122.20 as Mini-OS IP address, data caught by
> tcpdump is
> like this:
> 
> 16:30:33.161162 arp who-has 192.168.122.20 tell 192.168.122.20
> 16:30:35.911512 arp who-has 192.168.122.20 tell 192.168.122.20
> 16:30:38.911843 arp who-has 192.168.122.20 tell 192.168.122.20
> 16:30:41.912160 arp who-has 192.168.122.20 tell 192.168.122.20
> 16:30:44.912541 arp who-has 192.168.122.20 tell 192.168.122.20
> 
> And I cannot find the variable  LWIP_NETIF_LOOPBACK in opt.h in lwIP
> 1.3.0.

That doesn't make 0.0.0.0 a valid IP address.  It means you have an old
version of lwIP that probably doesn't support the feature you want.  I
think most of your problems are to do with how lwIP integrates with
miniOS.  I know this has been done with lwIP - XenSource (used to?) use
it for that purpose - so perhaps you will have most success if you can
find someone who is expert on miniOS to recommend what to do?  

Kieran




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