[etherlab-users] Ethernet over EtherCAT: IP-Address

[Florian Pose]

On Tue, Nov 04, 2008 at 08:14:01AM +0100, Erwin Burgstaller wrote:
> * Mon, Nov 03, 2008 - 17:25:27 +0100, Florian Pose - fp at igh-essen.com:
> 
> > please do this via higher-layer mechanisms, for example WWW, SSH or
> > whatever your slave supports.
> 
> Hm, for WWW or SSH we first need an ip-address. ;-)

It it the same thing with buying a new router, for example. It has a
default IP address, that you can change afterwards.

> OK, we'll probably use DHCP, or if the slaves knows it's ring position,
> we'll let it build it's ip-address based on that, something like this:
> 192.168.<X>.2

It's difficult for a slave to know its ring position, but you could use
the alias address (SII word 4), for instance.

-- 
Best regards,
Florian Pose

http://etherlab.org