Re: [lwip-users] forwarding and NAT

[Sylvain Rochet]

Hello,


On Wed, Feb 04, 2015 at 01:48:51PM +0100, Marleen Vos wrote:
> Hello,
> 
> I was looking around to see if lwip supports forwarding from PPP
> (serial) to Ethernet (in both directions),

Yes, it works in the master branch.


> and if NAT was possible.

lwIP does not have NAT support, there was a task about it but it didn't 
materialise. NAT is quite hard to do correctly, require huge amount of 
memory (I guess you are actually talking about stateful NAT), and in my 
opinion this is outside the scope of a small IP stack. If you need NAT 
or forwarding I am personally suggesting using Linux on ARM or MIPS SoC, 
Linux have a more-than-comprehensive NAT support with NAT helpers for 
many hard-to-deal-with protocols.


> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2015.0.5646 / Virus Database: 4281/9054 - Release Date: 02/04/15

Thanks, but I don't care.


Sylvain

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