[TriLUG] link-local network question

Tanner Lovelace lovelace at wayfarer.org
Fri Oct 17 10:51:34 EDT 2003


rasch at raschnet.com wrote:
> On Thu, Oct 16, 2003 at 05:06:58PM -0400, "P. L. Charles Fischer" <PLCFischer at nc.rr.com> wrote:
> 
>>I have a RedHat 9.0 box which configures it's network card via DHCP from a 
>>firewall.  This works great, but I need the system to default to a 
>>"link-local" (169.???.???.???) address if DHCP fails.  Then if "link-local" 
>>fails, then set address to default to a static address (like 192.168.1.1).
>>
>>Anybody ever try this on a IPv4 network?
> 
> 
> For the 169.x.x.x behavior you can use tools designed to work toward
> this effort: http://www.zeroconf.org  specifically "zcip".  There are
> other tools to configure your network differently based on nearby hosts.
> It depends on what your definition of what you mean "169.x.x.x" failing.
> It's difficult to detect if _anyone_ is participating on a subnet or
> not.  But, you might want to configure in a certain way depending on
> whether you're at home, work, or a wildcard case.
> 
> David
> 

I'd just like to note that Mandrake as of 9.1 (the previous version)
has supported this behavior out of the box. :-)  Connect two mandrake
boxes to a switch without a dhcp server and they'll find each other and
let you network together.  It will also do the same with Macs running
OS X.

Cheers,
Tanner
-- 
Tanner Lovelace | lovelace(at)wayfarer.org | http://wtl.wayfarer.org/
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