RE: [lwip-users] Multiple IP addresses

[Pettinato, Jim]

Hello Jim,

I haven't fully tested my approach yet - but I think though it is simple, it
may work for you... 
We just assign the fallback IP address FIRST... Then if DHCP negotiates
successfully, override that IP address with the lease. We also have two DIP
switches assigned to allow enable/disable of DHCP and/or force the device to
one of two default IP addresses.

Maybe that would work for you?

- Jim


-----Original Message-----
From: address@hidden
[mailto:address@hidden On Behalf Of
Leon Woestenberg
Sent: Thursday, June 10, 2004 1:34 PM
To: address@hidden; Mailing list for lwIP users
Subject: Re: [lwip-users] Multiple IP addresses


Hello Jim,

Jim Gibbons wrote:

> This issue came up for us a few months ago.  I couldn't find anything 
> in
> the DHCP specification about it.  The implication that I got was that 
> DHCP should be persistent.
>
Yes, that is the current implementation and will be the default.

However, for headless embedded devices, the IP link is the only way to
access the device, and you have a chicken-and-egg problem when there happens
to be no DHCP server.

Again, this needs to be a conditionally piece of stuff to be enabled.

Regards,

Leon.


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