MAC addresses, hostnames, and DHCP

[Bill McGonigle]

On Dec 2, 2005, at 11:49, Ben Scott wrote:

>   However, there are some caveats.  If any traffic occurs (payload, or
> SSH control traffic like rekeying, keep-alive, etc.), TCP (or higher
> level protocols) may time out before the IP layer finishes coming back
> up.  This is especially likely if you're using SSH to tunnel X11.

There seems to be a two-minute window where you can get away with this. 
  TCP sees it as packet loss.  I forget why 120 seconds is a magic 
number - something either in the spec/defaults for TCP packet retries.

You could, of course, setup your ssh keepalives to defeat this if 
needed.

-Bill
-----
Bill McGonigle, Owner           Work: 603.448.4440
BFC Computing, LLC              Home: 603.448.1668
bill at bfccomputing.com           Mobile: 603.252.2606
http://www.bfccomputing.com/    Pager: 603.442.1833
Jabber: flowerpt at gmail.com      Text: bill+text at bfccomputing.com
Blog: http://blog.bfccomputing.com/