Re: RE : [lwip-users] Device name

[Juri Haberland]

Nicolas Pinault wrote:
> > And I suppose you don't want to define "lwip_device" in your HOSTS file ?
> >   
> Of course not.
> > Note that an lwIP device using DHCP (with LWIP_NETIF_HOSTNAME=1) could 
> > register its name in a DNS (with DHCP/DNS Windows Server, but I 
> > suppose for the same exist on Linux), so, client using this DNS could 
> > do such ping.
> >   
> I already use DHCP with a device name. I can see the device name in DHCP 
> server table (WIN NT 4.0 server). But I can't ping on this name.
> In some situations, I don't have a DHCP server.

To ping a device via a name ('ping my-device' instead of 'ping 
192.168.1.2') you need a name-to-IP-address service. This is usually 
done with DNS, or in simpler cases, with just an entry in a hosts file 
on every machine that should be able to resolve the name to an IP 
address. As S. Ali Tokmen wrote, NetBIOS name service can do similar 
things, but I would not use such an out-dated mechanism, which is OS 
specific, too. That's what DNS was invented for.

If you want to update/alter DNS entries dynamically, you should use 
dynamic DNS updates. See RFC 2136.

Cheers,
Juri

PS: '_' is not a valid character in terms of DNS host names...